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kernel: pick patches for MediaTek Ethernet from linux-next

Browse Source 
Pick patches with several fixes and improvements, preparation for
upcoming WED (TX) [1] as well as basic XDP support [2] with MediaTek's
Filogic SoCs to the mtk_eth_soc driver.

Also pick follow-up patch fixing Ethernet on MT7621 [3].

Tested on Bananapi BPi-R3 (MT7986), Bananapi BPi-R64 (MT7622),
Bananapi BPi-R2 (MT7623), MikroTik RouterBoard M11G (MT7621).

[1]: https://patchwork.kernel.org/project/netdevbpf/list/?series=662108&state=*
[2]: https://patchwork.kernel.org/project/netdevbpf/list/?series=675368&state=*
     (the first part of the series adding wed nodes to mt7986a.dtsi was
      applied to the copy of mt7986a.dtsi in our tree)
[3]: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=5e69163d3b9931098922b3fc2f8e786af8c1f37e

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
This commit is contained in:
Daniel Golle 2022-08-29 08:54:41 +02:00
parent 524f52a471
commit c93c5365c0
No known key found for this signature in database
GPG Key ID: 5A8F39C31C3217CA
40 changed files with 5839 additions and 19 deletions
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161
target/linux/generic/backport-5.15/600-v5.18-page_pool-Add-allocation-stats.patch Normal file
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@ -0,0 +1,161 @@
commit 8610037e8106b48c79cfe0afb92b2b2466e51c3d
Author: Joe Damato <jdamato@fastly.com>
Date: Tue Mar 1 23:55:47 2022 -0800
page_pool: Add allocation stats
Add per-pool statistics counters for the allocation path of a page pool.
These stats are incremented in softirq context, so no locking or per-cpu
variables are needed.
This code is disabled by default and a kernel config option is provided for
users who wish to enable them.
The statistics added are:
- fast: successful fast path allocations
- slow: slow path order-0 allocations
- slow_high_order: slow path high order allocations
- empty: ptr ring is empty, so a slow path allocation was forced.
- refill: an allocation which triggered a refill of the cache
- waive: pages obtained from the ptr ring that cannot be added to
the cache due to a NUMA mismatch.
Signed-off-by: Joe Damato <jdamato@fastly.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
--- a/include/net/page_pool.h
+++ b/include/net/page_pool.h
@@ -82,6 +82,19 @@ struct page_pool_params {
unsigned int offset; /* DMA addr offset */
};
+#ifdef CONFIG_PAGE_POOL_STATS
+struct page_pool_alloc_stats {
+ u64 fast; /* fast path allocations */
+ u64 slow; /* slow-path order 0 allocations */
+ u64 slow_high_order; /* slow-path high order allocations */
+ u64 empty; /* failed refills due to empty ptr ring, forcing
+ * slow path allocation
+ */
+ u64 refill; /* allocations via successful refill */
+ u64 waive; /* failed refills due to numa zone mismatch */
+};
+#endif
+
struct page_pool {
struct page_pool_params p;
@@ -132,6 +145,11 @@ struct page_pool {
refcount_t user_cnt;
u64 destroy_cnt;
+
+#ifdef CONFIG_PAGE_POOL_STATS
+ /* these stats are incremented while in softirq context */
+ struct page_pool_alloc_stats alloc_stats;
+#endif
};
struct page *page_pool_alloc_pages(struct page_pool *pool, gfp_t gfp);
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -434,6 +434,19 @@ config NET_DEVLINK
config PAGE_POOL
bool
+config PAGE_POOL_STATS
+ default n
+ bool "Page pool stats"
+ depends on PAGE_POOL
+ help
+ Enable page pool statistics to track page allocation and recycling
+ in page pools. This option incurs additional CPU cost in allocation
+ and recycle paths and additional memory cost to store the statistics.
+ These statistics are only available if this option is enabled and if
+ the driver using the page pool supports exporting this data.
+
+ If unsure, say N.
+
config FAILOVER
tristate "Generic failover module"
help
--- a/net/core/page_pool.c
+++ b/net/core/page_pool.c
@@ -26,6 +26,13 @@
#define BIAS_MAX LONG_MAX
+#ifdef CONFIG_PAGE_POOL_STATS
+/* alloc_stat_inc is intended to be used in softirq context */
+#define alloc_stat_inc(pool, __stat) (pool->alloc_stats.__stat++)
+#else
+#define alloc_stat_inc(pool, __stat)
+#endif
+
static int page_pool_init(struct page_pool *pool,
const struct page_pool_params *params)
{
@@ -117,8 +124,10 @@ static struct page *page_pool_refill_all
int pref_nid; /* preferred NUMA node */
/* Quicker fallback, avoid locks when ring is empty */
- if (__ptr_ring_empty(r))
+ if (__ptr_ring_empty(r)) {
+ alloc_stat_inc(pool, empty);
return NULL;
+ }
/* Softirq guarantee CPU and thus NUMA node is stable. This,
* assumes CPU refilling driver RX-ring will also run RX-NAPI.
@@ -148,14 +157,17 @@ static struct page *page_pool_refill_all
* This limit stress on page buddy alloactor.
*/
page_pool_return_page(pool, page);
+ alloc_stat_inc(pool, waive);
page = NULL;
break;
}
} while (pool->alloc.count < PP_ALLOC_CACHE_REFILL);
/* Return last page */
- if (likely(pool->alloc.count > 0))
+ if (likely(pool->alloc.count > 0)) {
page = pool->alloc.cache[--pool->alloc.count];
+ alloc_stat_inc(pool, refill);
+ }
spin_unlock(&r->consumer_lock);
return page;
@@ -170,6 +182,7 @@ static struct page *__page_pool_get_cach
if (likely(pool->alloc.count)) {
/* Fast-path */
page = pool->alloc.cache[--pool->alloc.count];
+ alloc_stat_inc(pool, fast);
} else {
page = page_pool_refill_alloc_cache(pool);
}
@@ -241,6 +254,7 @@ static struct page *__page_pool_alloc_pa
return NULL;
}
+ alloc_stat_inc(pool, slow_high_order);
page_pool_set_pp_info(pool, page);
/* Track how many pages are held 'in-flight' */
@@ -295,10 +309,12 @@ static struct page *__page_pool_alloc_pa
}
/* Return last page */
- if (likely(pool->alloc.count > 0))
+ if (likely(pool->alloc.count > 0)) {
page = pool->alloc.cache[--pool->alloc.count];
- else
+ alloc_stat_inc(pool, slow);
+ } else {
page = NULL;
+ }
/* When page just alloc'ed is should/must have refcnt 1. */
return page;

137
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@ -0,0 +1,137 @@
commit ad6fa1e1ab1b8164f1ba296b1b4dc556a483bcad
Author: Joe Damato <jdamato@fastly.com>
Date: Tue Mar 1 23:55:48 2022 -0800
page_pool: Add recycle stats
Add per-cpu stats tracking page pool recycling events:
- cached: recycling placed page in the page pool cache
- cache_full: page pool cache was full
- ring: page placed into the ptr ring
- ring_full: page released from page pool because the ptr ring was full
- released_refcnt: page released (and not recycled) because refcnt > 1
Signed-off-by: Joe Damato <jdamato@fastly.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
--- a/include/net/page_pool.h
+++ b/include/net/page_pool.h
@@ -93,6 +93,18 @@ struct page_pool_alloc_stats {
u64 refill; /* allocations via successful refill */
u64 waive; /* failed refills due to numa zone mismatch */
};
+
+struct page_pool_recycle_stats {
+ u64 cached; /* recycling placed page in the cache. */
+ u64 cache_full; /* cache was full */
+ u64 ring; /* recycling placed page back into ptr ring */
+ u64 ring_full; /* page was released from page-pool because
+ * PTR ring was full.
+ */
+ u64 released_refcnt; /* page released because of elevated
+ * refcnt
+ */
+};
#endif
struct page_pool {
@@ -136,6 +148,10 @@ struct page_pool {
*/
struct ptr_ring ring;
+#ifdef CONFIG_PAGE_POOL_STATS
+ /* recycle stats are per-cpu to avoid locking */
+ struct page_pool_recycle_stats __percpu *recycle_stats;
+#endif
atomic_t pages_state_release_cnt;
/* A page_pool is strictly tied to a single RX-queue being
--- a/net/core/page_pool.c
+++ b/net/core/page_pool.c
@@ -29,8 +29,15 @@
#ifdef CONFIG_PAGE_POOL_STATS
/* alloc_stat_inc is intended to be used in softirq context */
#define alloc_stat_inc(pool, __stat) (pool->alloc_stats.__stat++)
+/* recycle_stat_inc is safe to use when preemption is possible. */
+#define recycle_stat_inc(pool, __stat) \
+ do { \
+ struct page_pool_recycle_stats __percpu *s = pool->recycle_stats; \
+ this_cpu_inc(s->__stat); \
+ } while (0)
#else
#define alloc_stat_inc(pool, __stat)
+#define recycle_stat_inc(pool, __stat)
#endif
static int page_pool_init(struct page_pool *pool,
@@ -80,6 +87,12 @@ static int page_pool_init(struct page_po
pool->p.flags & PP_FLAG_PAGE_FRAG)
return -EINVAL;
+#ifdef CONFIG_PAGE_POOL_STATS
+ pool->recycle_stats = alloc_percpu(struct page_pool_recycle_stats);
+ if (!pool->recycle_stats)
+ return -ENOMEM;
+#endif
+
if (ptr_ring_init(&pool->ring, ring_qsize, GFP_KERNEL) < 0)
return -ENOMEM;
@@ -412,7 +425,12 @@ static bool page_pool_recycle_in_ring(st
else
ret = ptr_ring_produce_bh(&pool->ring, page);
- return (ret == 0) ? true : false;
+ if (!ret) {
+ recycle_stat_inc(pool, ring);
+ return true;
+ }
+
+ return false;
}
/* Only allow direct recycling in special circumstances, into the
@@ -423,11 +441,14 @@ static bool page_pool_recycle_in_ring(st
static bool page_pool_recycle_in_cache(struct page *page,
struct page_pool *pool)
{
- if (unlikely(pool->alloc.count == PP_ALLOC_CACHE_SIZE))
+ if (unlikely(pool->alloc.count == PP_ALLOC_CACHE_SIZE)) {
+ recycle_stat_inc(pool, cache_full);
return false;
+ }
/* Caller MUST have verified/know (page_ref_count(page) == 1) */
pool->alloc.cache[pool->alloc.count++] = page;
+ recycle_stat_inc(pool, cached);
return true;
}
@@ -482,6 +503,7 @@ __page_pool_put_page(struct page_pool *p
* doing refcnt based recycle tricks, meaning another process
* will be invoking put_page.
*/
+ recycle_stat_inc(pool, released_refcnt);
/* Do not replace this with page_pool_return_page() */
page_pool_release_page(pool, page);
put_page(page);
@@ -495,6 +517,7 @@ void page_pool_put_page(struct page_pool
page = __page_pool_put_page(pool, page, dma_sync_size, allow_direct);
if (page && !page_pool_recycle_in_ring(pool, page)) {
/* Cache full, fallback to free pages */
+ recycle_stat_inc(pool, ring_full);
page_pool_return_page(pool, page);
}
}
@@ -641,6 +664,9 @@ static void page_pool_free(struct page_p
if (pool->p.flags & PP_FLAG_DMA_MAP)
put_device(pool->p.dev);
+#ifdef CONFIG_PAGE_POOL_STATS
+ free_percpu(pool->recycle_stats);
+#endif
kfree(pool);
}

74
target/linux/generic/backport-5.15/602-v5.18-page_pool-Add-function-to-batch-and-return-stats.patch Normal file
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@ -0,0 +1,74 @@
commit 6b95e3388b1ea0ca63500c5a6e39162dbf828433
Author: Joe Damato <jdamato@fastly.com>
Date: Tue Mar 1 23:55:49 2022 -0800
page_pool: Add function to batch and return stats
Adds a function page_pool_get_stats which can be used by drivers to obtain
stats for a specified page_pool.
Signed-off-by: Joe Damato <jdamato@fastly.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
--- a/include/net/page_pool.h
+++ b/include/net/page_pool.h
@@ -105,6 +105,23 @@ struct page_pool_recycle_stats {
* refcnt
*/
};
+
+/* This struct wraps the above stats structs so users of the
+ * page_pool_get_stats API can pass a single argument when requesting the
+ * stats for the page pool.
+ */
+struct page_pool_stats {
+ struct page_pool_alloc_stats alloc_stats;
+ struct page_pool_recycle_stats recycle_stats;
+};
+
+/*
+ * Drivers that wish to harvest page pool stats and report them to users
+ * (perhaps via ethtool, debugfs, or another mechanism) can allocate a
+ * struct page_pool_stats call page_pool_get_stats to get stats for the specified pool.
+ */
+bool page_pool_get_stats(struct page_pool *pool,
+ struct page_pool_stats *stats);
#endif
struct page_pool {
--- a/net/core/page_pool.c
+++ b/net/core/page_pool.c
@@ -35,6 +35,31 @@
struct page_pool_recycle_stats __percpu *s = pool->recycle_stats; \
this_cpu_inc(s->__stat); \
} while (0)
+
+bool page_pool_get_stats(struct page_pool *pool,
+ struct page_pool_stats *stats)
+{
+ int cpu = 0;
+
+ if (!stats)
+ return false;
+
+ memcpy(&stats->alloc_stats, &pool->alloc_stats, sizeof(pool->alloc_stats));
+
+ for_each_possible_cpu(cpu) {
+ const struct page_pool_recycle_stats *pcpu =
+ per_cpu_ptr(pool->recycle_stats, cpu);
+
+ stats->recycle_stats.cached += pcpu->cached;
+ stats->recycle_stats.cache_full += pcpu->cache_full;
+ stats->recycle_stats.ring += pcpu->ring;
+ stats->recycle_stats.ring_full += pcpu->ring_full;
+ stats->recycle_stats.released_refcnt += pcpu->released_refcnt;
+ }
+
+ return true;
+}
+EXPORT_SYMBOL(page_pool_get_stats);
#else
#define alloc_stat_inc(pool, __stat)
#define recycle_stat_inc(pool, __stat)

53
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@ -0,0 +1,53 @@
commit 590032a4d2133ecc10d3078a8db1d85a4842f12c
Author: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Mon Apr 11 16:05:26 2022 +0200
page_pool: Add recycle stats to page_pool_put_page_bulk
Add missing recycle stats to page_pool_put_page_bulk routine.
Reviewed-by: Joe Damato <jdamato@fastly.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Link: https://lore.kernel.org/r/3712178b51c007cfaed910ea80e68f00c916b1fa.1649685634.git.lorenzo@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
--- a/net/core/page_pool.c
+++ b/net/core/page_pool.c
@@ -36,6 +36,12 @@
this_cpu_inc(s->__stat); \
} while (0)
+#define recycle_stat_add(pool, __stat, val) \
+ do { \
+ struct page_pool_recycle_stats __percpu *s = pool->recycle_stats; \
+ this_cpu_add(s->__stat, val); \
+ } while (0)
+
bool page_pool_get_stats(struct page_pool *pool,
struct page_pool_stats *stats)
{
@@ -63,6 +69,7 @@ EXPORT_SYMBOL(page_pool_get_stats);
#else
#define alloc_stat_inc(pool, __stat)
#define recycle_stat_inc(pool, __stat)
+#define recycle_stat_add(pool, __stat, val)
#endif
static int page_pool_init(struct page_pool *pool,
@@ -569,9 +576,13 @@ void page_pool_put_page_bulk(struct page
/* Bulk producer into ptr_ring page_pool cache */
page_pool_ring_lock(pool);
for (i = 0; i < bulk_len; i++) {
- if (__ptr_ring_produce(&pool->ring, data[i]))
- break; /* ring full */
+ if (__ptr_ring_produce(&pool->ring, data[i])) {
+ /* ring full */
+ recycle_stat_inc(pool, ring_full);
+ break;
+ }
}
+ recycle_stat_add(pool, ring, i);
page_pool_ring_unlock(pool);
/* Hopefully all pages was return into ptr_ring */

144
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@ -0,0 +1,144 @@
commit f3c5264f452a5b0ac1de1f2f657efbabdea3c76a
Author: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Tue Apr 12 18:31:58 2022 +0200
net: page_pool: introduce ethtool stats
Introduce page_pool APIs to report stats through ethtool and reduce
duplicated code in each driver.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
--- a/include/net/page_pool.h
+++ b/include/net/page_pool.h
@@ -115,6 +115,10 @@ struct page_pool_stats {
struct page_pool_recycle_stats recycle_stats;
};
+int page_pool_ethtool_stats_get_count(void);
+u8 *page_pool_ethtool_stats_get_strings(u8 *data);
+u64 *page_pool_ethtool_stats_get(u64 *data, void *stats);
+
/*
* Drivers that wish to harvest page pool stats and report them to users
* (perhaps via ethtool, debugfs, or another mechanism) can allocate a
@@ -122,6 +126,23 @@ struct page_pool_stats {
*/
bool page_pool_get_stats(struct page_pool *pool,
struct page_pool_stats *stats);
+#else
+
+static inline int page_pool_ethtool_stats_get_count(void)
+{
+ return 0;
+}
+
+static inline u8 *page_pool_ethtool_stats_get_strings(u8 *data)
+{
+ return data;
+}
+
+static inline u64 *page_pool_ethtool_stats_get(u64 *data, void *stats)
+{
+ return data;
+}
+
#endif
struct page_pool {
--- a/net/core/page_pool.c
+++ b/net/core/page_pool.c
@@ -18,6 +18,7 @@
#include <linux/page-flags.h>
#include <linux/mm.h> /* for __put_page() */
#include <linux/poison.h>
+#include <linux/ethtool.h>
#include <trace/events/page_pool.h>
@@ -42,6 +43,20 @@
this_cpu_add(s->__stat, val); \
} while (0)
+static const char pp_stats[][ETH_GSTRING_LEN] = {
+ "rx_pp_alloc_fast",
+ "rx_pp_alloc_slow",
+ "rx_pp_alloc_slow_ho",
+ "rx_pp_alloc_empty",
+ "rx_pp_alloc_refill",
+ "rx_pp_alloc_waive",
+ "rx_pp_recycle_cached",
+ "rx_pp_recycle_cache_full",
+ "rx_pp_recycle_ring",
+ "rx_pp_recycle_ring_full",
+ "rx_pp_recycle_released_ref",
+};
+
bool page_pool_get_stats(struct page_pool *pool,
struct page_pool_stats *stats)
{
@@ -50,7 +65,13 @@ bool page_pool_get_stats(struct page_poo
if (!stats)
return false;
- memcpy(&stats->alloc_stats, &pool->alloc_stats, sizeof(pool->alloc_stats));
+ /* The caller is responsible to initialize stats. */
+ stats->alloc_stats.fast += pool->alloc_stats.fast;
+ stats->alloc_stats.slow += pool->alloc_stats.slow;
+ stats->alloc_stats.slow_high_order += pool->alloc_stats.slow_high_order;
+ stats->alloc_stats.empty += pool->alloc_stats.empty;
+ stats->alloc_stats.refill += pool->alloc_stats.refill;
+ stats->alloc_stats.waive += pool->alloc_stats.waive;
for_each_possible_cpu(cpu) {
const struct page_pool_recycle_stats *pcpu =
@@ -66,6 +87,46 @@ bool page_pool_get_stats(struct page_poo
return true;
}
EXPORT_SYMBOL(page_pool_get_stats);
+
+u8 *page_pool_ethtool_stats_get_strings(u8 *data)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(pp_stats); i++) {
+ memcpy(data, pp_stats[i], ETH_GSTRING_LEN);
+ data += ETH_GSTRING_LEN;
+ }
+
+ return data;
+}
+EXPORT_SYMBOL(page_pool_ethtool_stats_get_strings);
+
+int page_pool_ethtool_stats_get_count(void)
+{
+ return ARRAY_SIZE(pp_stats);
+}
+EXPORT_SYMBOL(page_pool_ethtool_stats_get_count);
+
+u64 *page_pool_ethtool_stats_get(u64 *data, void *stats)
+{
+ struct page_pool_stats *pool_stats = stats;
+
+ *data++ = pool_stats->alloc_stats.fast;
+ *data++ = pool_stats->alloc_stats.slow;
+ *data++ = pool_stats->alloc_stats.slow_high_order;
+ *data++ = pool_stats->alloc_stats.empty;
+ *data++ = pool_stats->alloc_stats.refill;
+ *data++ = pool_stats->alloc_stats.waive;
+ *data++ = pool_stats->recycle_stats.cached;
+ *data++ = pool_stats->recycle_stats.cache_full;
+ *data++ = pool_stats->recycle_stats.ring;
+ *data++ = pool_stats->recycle_stats.ring_full;
+ *data++ = pool_stats->recycle_stats.released_refcnt;
+
+ return data;
+}
+EXPORT_SYMBOL(page_pool_ethtool_stats_get);
+
#else
#define alloc_stat_inc(pool, __stat)
#define recycle_stat_inc(pool, __stat)

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@ -0,0 +1,97 @@
commit 2e88d4ff03013937028f5397268b21e10cf68713
Author: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Fri Jan 21 11:09:45 2022 +0100
xdp: introduce flags field in xdp_buff/xdp_frame
Introduce flags field in xdp_frame and xdp_buffer data structures
to define additional buffer features. At the moment the only
supported buffer feature is frags bit (XDP_FLAGS_HAS_FRAGS).
frags bit is used to specify if this is a linear buffer
(XDP_FLAGS_HAS_FRAGS not set) or a frags frame (XDP_FLAGS_HAS_FRAGS
set). In the latter case the driver is expected to initialize the
skb_shared_info structure at the end of the first buffer to link together
subsequent buffers belonging to the same frame.
Acked-by: Toke Hoiland-Jorgensen <toke@redhat.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/e389f14f3a162c0a5bc6a2e1aa8dd01a90be117d.1642758637.git.lorenzo@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
--- a/include/net/xdp.h
+++ b/include/net/xdp.h
@@ -66,6 +66,10 @@ struct xdp_txq_info {
struct net_device *dev;
};
+enum xdp_buff_flags {
+ XDP_FLAGS_HAS_FRAGS = BIT(0), /* non-linear xdp buff */
+};
+
struct xdp_buff {
void *data;
void *data_end;
@@ -74,13 +78,30 @@ struct xdp_buff {
struct xdp_rxq_info *rxq;
struct xdp_txq_info *txq;
u32 frame_sz; /* frame size to deduce data_hard_end/reserved tailroom*/
+ u32 flags; /* supported values defined in xdp_buff_flags */
};
+static __always_inline bool xdp_buff_has_frags(struct xdp_buff *xdp)
+{
+ return !!(xdp->flags & XDP_FLAGS_HAS_FRAGS);
+}
+
+static __always_inline void xdp_buff_set_frags_flag(struct xdp_buff *xdp)
+{
+ xdp->flags |= XDP_FLAGS_HAS_FRAGS;
+}
+
+static __always_inline void xdp_buff_clear_frags_flag(struct xdp_buff *xdp)
+{
+ xdp->flags &= ~XDP_FLAGS_HAS_FRAGS;
+}
+
static __always_inline void
xdp_init_buff(struct xdp_buff *xdp, u32 frame_sz, struct xdp_rxq_info *rxq)
{
xdp->frame_sz = frame_sz;
xdp->rxq = rxq;
+ xdp->flags = 0;
}
static __always_inline void
@@ -122,8 +143,14 @@ struct xdp_frame {
*/
struct xdp_mem_info mem;
struct net_device *dev_rx; /* used by cpumap */
+ u32 flags; /* supported values defined in xdp_buff_flags */
};
+static __always_inline bool xdp_frame_has_frags(struct xdp_frame *frame)
+{
+ return !!(frame->flags & XDP_FLAGS_HAS_FRAGS);
+}
+
#define XDP_BULK_QUEUE_SIZE 16
struct xdp_frame_bulk {
int count;
@@ -180,6 +207,7 @@ void xdp_convert_frame_to_buff(struct xd
xdp->data_end = frame->data + frame->len;
xdp->data_meta = frame->data - frame->metasize;
xdp->frame_sz = frame->frame_sz;
+ xdp->flags = frame->flags;
}
static inline
@@ -206,6 +234,7 @@ int xdp_update_frame_from_buff(struct xd
xdp_frame->headroom = headroom - sizeof(*xdp_frame);
xdp_frame->metasize = metasize;
xdp_frame->frame_sz = xdp->frame_sz;
+ xdp_frame->flags = xdp->flags;
return 0;
}

134
target/linux/generic/backport-5.15/606-v5.18-xdp-add-frags-support-to-xdp_return_-buff-frame.patch Normal file
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@ -0,0 +1,134 @@
commit 7c48cb0176c6d6d3b55029f7ff4ffa05faee6446
Author: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Fri Jan 21 11:09:50 2022 +0100
xdp: add frags support to xdp_return_{buff/frame}
Take into account if the received xdp_buff/xdp_frame is non-linear
recycling/returning the frame memory to the allocator or into
xdp_frame_bulk.
Acked-by: Toke Hoiland-Jorgensen <toke@redhat.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/a961069febc868508ce1bdf5e53a343eb4e57cb2.1642758637.git.lorenzo@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
--- a/include/net/xdp.h
+++ b/include/net/xdp.h
@@ -275,10 +275,24 @@ void __xdp_release_frame(void *data, str
static inline void xdp_release_frame(struct xdp_frame *xdpf)
{
struct xdp_mem_info *mem = &xdpf->mem;
+ struct skb_shared_info *sinfo;
+ int i;
/* Curr only page_pool needs this */
- if (mem->type == MEM_TYPE_PAGE_POOL)
- __xdp_release_frame(xdpf->data, mem);
+ if (mem->type != MEM_TYPE_PAGE_POOL)
+ return;
+
+ if (likely(!xdp_frame_has_frags(xdpf)))
+ goto out;
+
+ sinfo = xdp_get_shared_info_from_frame(xdpf);
+ for (i = 0; i < sinfo->nr_frags; i++) {
+ struct page *page = skb_frag_page(&sinfo->frags[i]);
+
+ __xdp_release_frame(page_address(page), mem);
+ }
+out:
+ __xdp_release_frame(xdpf->data, mem);
}
int xdp_rxq_info_reg(struct xdp_rxq_info *xdp_rxq,
--- a/net/core/xdp.c
+++ b/net/core/xdp.c
@@ -376,12 +376,38 @@ static void __xdp_return(void *data, str
void xdp_return_frame(struct xdp_frame *xdpf)
{
+ struct skb_shared_info *sinfo;
+ int i;
+
+ if (likely(!xdp_frame_has_frags(xdpf)))
+ goto out;
+
+ sinfo = xdp_get_shared_info_from_frame(xdpf);
+ for (i = 0; i < sinfo->nr_frags; i++) {
+ struct page *page = skb_frag_page(&sinfo->frags[i]);
+
+ __xdp_return(page_address(page), &xdpf->mem, false, NULL);
+ }
+out:
__xdp_return(xdpf->data, &xdpf->mem, false, NULL);
}
EXPORT_SYMBOL_GPL(xdp_return_frame);
void xdp_return_frame_rx_napi(struct xdp_frame *xdpf)
{
+ struct skb_shared_info *sinfo;
+ int i;
+
+ if (likely(!xdp_frame_has_frags(xdpf)))
+ goto out;
+
+ sinfo = xdp_get_shared_info_from_frame(xdpf);
+ for (i = 0; i < sinfo->nr_frags; i++) {
+ struct page *page = skb_frag_page(&sinfo->frags[i]);
+
+ __xdp_return(page_address(page), &xdpf->mem, true, NULL);
+ }
+out:
__xdp_return(xdpf->data, &xdpf->mem, true, NULL);
}
EXPORT_SYMBOL_GPL(xdp_return_frame_rx_napi);
@@ -417,7 +443,7 @@ void xdp_return_frame_bulk(struct xdp_fr
struct xdp_mem_allocator *xa;
if (mem->type != MEM_TYPE_PAGE_POOL) {
- __xdp_return(xdpf->data, &xdpf->mem, false, NULL);
+ xdp_return_frame(xdpf);
return;
}
@@ -436,12 +462,38 @@ void xdp_return_frame_bulk(struct xdp_fr
bq->xa = rhashtable_lookup(mem_id_ht, &mem->id, mem_id_rht_params);
}
+ if (unlikely(xdp_frame_has_frags(xdpf))) {
+ struct skb_shared_info *sinfo;
+ int i;
+
+ sinfo = xdp_get_shared_info_from_frame(xdpf);
+ for (i = 0; i < sinfo->nr_frags; i++) {
+ skb_frag_t *frag = &sinfo->frags[i];
+
+ bq->q[bq->count++] = skb_frag_address(frag);
+ if (bq->count == XDP_BULK_QUEUE_SIZE)
+ xdp_flush_frame_bulk(bq);
+ }
+ }
bq->q[bq->count++] = xdpf->data;
}
EXPORT_SYMBOL_GPL(xdp_return_frame_bulk);
void xdp_return_buff(struct xdp_buff *xdp)
{
+ struct skb_shared_info *sinfo;
+ int i;
+
+ if (likely(!xdp_buff_has_frags(xdp)))
+ goto out;
+
+ sinfo = xdp_get_shared_info_from_buff(xdp);
+ for (i = 0; i < sinfo->nr_frags; i++) {
+ struct page *page = skb_frag_page(&sinfo->frags[i]);
+
+ __xdp_return(page_address(page), &xdp->rxq->mem, true, xdp);
+ }
+out:
__xdp_return(xdp->data, &xdp->rxq->mem, true, xdp);
}

29
target/linux/generic/backport-5.15/607-v5.18-net-skbuff-add-size-metadata-to-skb_shared_info-for-.patch Normal file
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@ -0,0 +1,29 @@
commit d16697cb6261d4cc23422e6b1cb2759df8aa76d0
Author: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Fri Jan 21 11:09:44 2022 +0100
net: skbuff: add size metadata to skb_shared_info for xdp
Introduce xdp_frags_size field in skb_shared_info data structure
to store xdp_buff/xdp_frame frame paged size (xdp_frags_size will
be used in xdp frags support). In order to not increase
skb_shared_info size we will use a hole due to skb_shared_info
alignment.
Acked-by: Toke Hoiland-Jorgensen <toke@redhat.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/8a849819a3e0a143d540f78a3a5add76e17e980d.1642758637.git.lorenzo@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -567,6 +567,7 @@ struct skb_shared_info {
* Warning : all fields before dataref are cleared in __alloc_skb()
*/
atomic_t dataref;
+ unsigned int xdp_frags_size;
/* Intermediate layers must ensure that destructor_arg
* remains valid until skb destructor */

62
target/linux/generic/backport-5.15/608-v5.18-net-veth-Account-total-xdp_frame-len-running-ndo_xdp.patch Normal file
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@ -0,0 +1,62 @@
commit 5142239a22219921a7863cf00c9ab853c00689d8
Author: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Fri Mar 11 10:14:18 2022 +0100
net: veth: Account total xdp_frame len running ndo_xdp_xmit
Even if this is a theoretical issue since it is not possible to perform
XDP_REDIRECT on a non-linear xdp_frame, veth driver does not account
paged area in ndo_xdp_xmit function pointer.
Introduce xdp_get_frame_len utility routine to get the xdp_frame full
length and account total frame size running XDP_REDIRECT of a
non-linear xdp frame into a veth device.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Toke Hoiland-Jorgensen <toke@redhat.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/54f9fd3bb65d190daf2c0bbae2f852ff16cfbaa0.1646989407.git.lorenzo@kernel.org
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -501,7 +501,7 @@ static int veth_xdp_xmit(struct net_devi
struct xdp_frame *frame = frames[i];
void *ptr = veth_xdp_to_ptr(frame);
- if (unlikely(frame->len > max_len ||
+ if (unlikely(xdp_get_frame_len(frame) > max_len ||
__ptr_ring_produce(&rq->xdp_ring, ptr)))
break;
nxmit++;
@@ -862,7 +862,7 @@ static int veth_xdp_rcv(struct veth_rq *
/* ndo_xdp_xmit */
struct xdp_frame *frame = veth_ptr_to_xdp(ptr);
- stats->xdp_bytes += frame->len;
+ stats->xdp_bytes += xdp_get_frame_len(frame);
frame = veth_xdp_rcv_one(rq, frame, bq, stats);
if (frame) {
/* XDP_PASS */
--- a/include/net/xdp.h
+++ b/include/net/xdp.h
@@ -295,6 +295,20 @@ out:
__xdp_release_frame(xdpf->data, mem);
}
+static __always_inline unsigned int xdp_get_frame_len(struct xdp_frame *xdpf)
+{
+ struct skb_shared_info *sinfo;
+ unsigned int len = xdpf->len;
+
+ if (likely(!xdp_frame_has_frags(xdpf)))
+ goto out;
+
+ sinfo = xdp_get_shared_info_from_frame(xdpf);
+ len += sinfo->xdp_frags_size;
+out:
+ return len;
+}
+
int xdp_rxq_info_reg(struct xdp_rxq_info *xdp_rxq,
struct net_device *dev, u32 queue_index, unsigned int napi_id);
void xdp_rxq_info_unreg(struct xdp_rxq_info *xdp_rxq);

35
target/linux/generic/backport-5.15/609-v5.18-veth-Allow-jumbo-frames-in-xdp-mode.patch Normal file
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@ -0,0 +1,35 @@
commit 7cda76d858a4e71ac4a04066c093679a12e1312c
Author: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Fri Mar 11 10:14:20 2022 +0100
veth: Allow jumbo frames in xdp mode
Allow increasing the MTU over page boundaries on veth devices
if the attached xdp program declares to support xdp fragments.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/d5dc039c3d4123426e7023a488c449181a7bc57f.1646989407.git.lorenzo@kernel.org
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -1470,9 +1470,14 @@ static int veth_xdp_set(struct net_devic
goto err;
}
- max_mtu = PAGE_SIZE - VETH_XDP_HEADROOM -
- peer->hard_header_len -
- SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
+ max_mtu = SKB_WITH_OVERHEAD(PAGE_SIZE - VETH_XDP_HEADROOM) -
+ peer->hard_header_len;
+ /* Allow increasing the max_mtu if the program supports
+ * XDP fragments.
+ */
+ //if (prog->aux->xdp_has_frags)
+ max_mtu += PAGE_SIZE * MAX_SKB_FRAGS;
+
if (peer->mtu > max_mtu) {
NL_SET_ERR_MSG_MOD(extack, "Peer MTU is too large to set XDP");
err = -ERANGE;

330
target/linux/generic/backport-5.15/706-00-v6.0-net-ethernet-mtk_eth_soc-rely-on-page_pool-for-singl.patch Normal file
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@ -0,0 +1,330 @@
From 23233e577ef973c2c5d0dd757a0a4605e34ecb57 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Fri, 22 Jul 2022 09:19:36 +0200
Subject: [PATCH] net: ethernet: mtk_eth_soc: rely on page_pool for single page
buffers
Rely on page_pool allocator for single page buffers in order to keep
them dma mapped and add skb recycling support.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/ethernet/mediatek/Kconfig | 1 +
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 185 +++++++++++++++-----
drivers/net/ethernet/mediatek/mtk_eth_soc.h | 10 ++
3 files changed, 156 insertions(+), 40 deletions(-)
--- a/drivers/net/ethernet/mediatek/Kconfig
+++ b/drivers/net/ethernet/mediatek/Kconfig
@@ -16,6 +16,7 @@ config NET_MEDIATEK_SOC
depends on NET_DSA || !NET_DSA
select PHYLINK
select DIMLIB
+ select PAGE_POOL
help
This driver supports the gigabit ethernet MACs in the
MediaTek SoC family.
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -1388,6 +1388,68 @@ static void mtk_update_rx_cpu_idx(struct
}
}
+static struct page_pool *mtk_create_page_pool(struct mtk_eth *eth,
+ struct xdp_rxq_info *xdp_q,
+ int id, int size)
+{
+ struct page_pool_params pp_params = {
+ .order = 0,
+ .flags = PP_FLAG_DMA_MAP | PP_FLAG_DMA_SYNC_DEV,
+ .pool_size = size,
+ .nid = NUMA_NO_NODE,
+ .dev = eth->dma_dev,
+ .dma_dir = DMA_FROM_DEVICE,
+ .offset = MTK_PP_HEADROOM,
+ .max_len = MTK_PP_MAX_BUF_SIZE,
+ };
+ struct page_pool *pp;
+ int err;
+
+ pp = page_pool_create(&pp_params);
+ if (IS_ERR(pp))
+ return pp;
+
+ err = xdp_rxq_info_reg(xdp_q, &eth->dummy_dev, id,
+ eth->rx_napi.napi_id);
+ if (err < 0)
+ goto err_free_pp;
+
+ err = xdp_rxq_info_reg_mem_model(xdp_q, MEM_TYPE_PAGE_POOL, pp);
+ if (err)
+ goto err_unregister_rxq;
+
+ return pp;
+
+err_unregister_rxq:
+ xdp_rxq_info_unreg(xdp_q);
+err_free_pp:
+ page_pool_destroy(pp);
+
+ return ERR_PTR(err);
+}
+
+static void *mtk_page_pool_get_buff(struct page_pool *pp, dma_addr_t *dma_addr,
+ gfp_t gfp_mask)
+{
+ struct page *page;
+
+ page = page_pool_alloc_pages(pp, gfp_mask | __GFP_NOWARN);
+ if (!page)
+ return NULL;
+
+ *dma_addr = page_pool_get_dma_addr(page) + MTK_PP_HEADROOM;
+ return page_address(page);
+}
+
+static void mtk_rx_put_buff(struct mtk_rx_ring *ring, void *data, bool napi)
+{
+ if (ring->page_pool)
+ page_pool_put_full_page(ring->page_pool,
+ virt_to_head_page(data), napi);
+ else
+ skb_free_frag(data);
+}
+
static int mtk_poll_rx(struct napi_struct *napi, int budget,
struct mtk_eth *eth)
{
@@ -1401,9 +1463,9 @@ static int mtk_poll_rx(struct napi_struc
while (done < budget) {
unsigned int pktlen, *rxdcsum;
+ u32 hash, reason, reserve_len;
struct net_device *netdev;
dma_addr_t dma_addr;
- u32 hash, reason;
int mac = 0;
ring = mtk_get_rx_ring(eth);
@@ -1434,36 +1496,54 @@ static int mtk_poll_rx(struct napi_struc
goto release_desc;
/* alloc new buffer */
- if (ring->frag_size <= PAGE_SIZE)
- new_data = napi_alloc_frag(ring->frag_size);
- else
- new_data = mtk_max_lro_buf_alloc(GFP_ATOMIC);
- if (unlikely(!new_data)) {
- netdev->stats.rx_dropped++;
- goto release_desc;
- }
- dma_addr = dma_map_single(eth->dma_dev,
- new_data + NET_SKB_PAD +
- eth->ip_align,
- ring->buf_size,
- DMA_FROM_DEVICE);
- if (unlikely(dma_mapping_error(eth->dma_dev, dma_addr))) {
- skb_free_frag(new_data);
- netdev->stats.rx_dropped++;
- goto release_desc;
- }
+ if (ring->page_pool) {
+ new_data = mtk_page_pool_get_buff(ring->page_pool,
+ &dma_addr,
+ GFP_ATOMIC);
+ if (unlikely(!new_data)) {
+ netdev->stats.rx_dropped++;
+ goto release_desc;
+ }
+ } else {
+ if (ring->frag_size <= PAGE_SIZE)
+ new_data = napi_alloc_frag(ring->frag_size);
+ else
+ new_data = mtk_max_lro_buf_alloc(GFP_ATOMIC);
+
+ if (unlikely(!new_data)) {
+ netdev->stats.rx_dropped++;
+ goto release_desc;
+ }
- dma_unmap_single(eth->dma_dev, trxd.rxd1,
- ring->buf_size, DMA_FROM_DEVICE);
+ dma_addr = dma_map_single(eth->dma_dev,
+ new_data + NET_SKB_PAD + eth->ip_align,
+ ring->buf_size, DMA_FROM_DEVICE);
+ if (unlikely(dma_mapping_error(eth->dma_dev,
+ dma_addr))) {
+ skb_free_frag(new_data);
+ netdev->stats.rx_dropped++;
+ goto release_desc;
+ }
+
+ dma_unmap_single(eth->dma_dev, trxd.rxd1,
+ ring->buf_size, DMA_FROM_DEVICE);
+ }
/* receive data */
skb = build_skb(data, ring->frag_size);
if (unlikely(!skb)) {
- skb_free_frag(data);
+ mtk_rx_put_buff(ring, data, true);
netdev->stats.rx_dropped++;
goto skip_rx;
}
- skb_reserve(skb, NET_SKB_PAD + NET_IP_ALIGN);
+
+ if (ring->page_pool) {
+ reserve_len = MTK_PP_HEADROOM;
+ skb_mark_for_recycle(skb);
+ } else {
+ reserve_len = NET_SKB_PAD + NET_IP_ALIGN;
+ }
+ skb_reserve(skb, reserve_len);
pktlen = RX_DMA_GET_PLEN0(trxd.rxd2);
skb->dev = netdev;
@@ -1517,7 +1597,6 @@ static int mtk_poll_rx(struct napi_struc
skip_rx:
ring->data[idx] = new_data;
rxd->rxd1 = (unsigned int)dma_addr;
-
release_desc:
if (MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628))
rxd->rxd2 = RX_DMA_LSO;
@@ -1525,7 +1604,6 @@ release_desc:
rxd->rxd2 = RX_DMA_PREP_PLEN0(ring->buf_size);
ring->calc_idx = idx;
-
done++;
}
@@ -1889,13 +1967,15 @@ static int mtk_rx_alloc(struct mtk_eth *
if (!ring->data)
return -ENOMEM;
- for (i = 0; i < rx_dma_size; i++) {
- if (ring->frag_size <= PAGE_SIZE)
- ring->data[i] = netdev_alloc_frag(ring->frag_size);
- else
- ring->data[i] = mtk_max_lro_buf_alloc(GFP_KERNEL);
- if (!ring->data[i])
- return -ENOMEM;
+ if (!eth->hwlro) {
+ struct page_pool *pp;
+
+ pp = mtk_create_page_pool(eth, &ring->xdp_q, ring_no,
+ rx_dma_size);
+ if (IS_ERR(pp))
+ return PTR_ERR(pp);
+
+ ring->page_pool = pp;
}
ring->dma = dma_alloc_coherent(eth->dma_dev,
@@ -1906,16 +1986,33 @@ static int mtk_rx_alloc(struct mtk_eth *
for (i = 0; i < rx_dma_size; i++) {
struct mtk_rx_dma_v2 *rxd;
-
- dma_addr_t dma_addr = dma_map_single(eth->dma_dev,
- ring->data[i] + NET_SKB_PAD + eth->ip_align,
- ring->buf_size,
- DMA_FROM_DEVICE);
- if (unlikely(dma_mapping_error(eth->dma_dev, dma_addr)))
- return -ENOMEM;
+ dma_addr_t dma_addr;
+ void *data;
rxd = ring->dma + i * eth->soc->txrx.rxd_size;
+ if (ring->page_pool) {
+ data = mtk_page_pool_get_buff(ring->page_pool,
+ &dma_addr, GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+ } else {
+ if (ring->frag_size <= PAGE_SIZE)
+ data = netdev_alloc_frag(ring->frag_size);
+ else
+ data = mtk_max_lro_buf_alloc(GFP_KERNEL);
+
+ if (!data)
+ return -ENOMEM;
+
+ dma_addr = dma_map_single(eth->dma_dev,
+ data + NET_SKB_PAD + eth->ip_align,
+ ring->buf_size, DMA_FROM_DEVICE);
+ if (unlikely(dma_mapping_error(eth->dma_dev,
+ dma_addr)))
+ return -ENOMEM;
+ }
rxd->rxd1 = (unsigned int)dma_addr;
+ ring->data[i] = data;
if (MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628))
rxd->rxd2 = RX_DMA_LSO;
@@ -1931,6 +2028,7 @@ static int mtk_rx_alloc(struct mtk_eth *
rxd->rxd8 = 0;
}
}
+
ring->dma_size = rx_dma_size;
ring->calc_idx_update = false;
ring->calc_idx = rx_dma_size - 1;
@@ -1982,7 +2080,7 @@ static void mtk_rx_clean(struct mtk_eth
dma_unmap_single(eth->dma_dev, rxd->rxd1,
ring->buf_size, DMA_FROM_DEVICE);
- skb_free_frag(ring->data[i]);
+ mtk_rx_put_buff(ring, ring->data[i], false);
}
kfree(ring->data);
ring->data = NULL;
@@ -1994,6 +2092,13 @@ static void mtk_rx_clean(struct mtk_eth
ring->dma, ring->phys);
ring->dma = NULL;
}
+
+ if (ring->page_pool) {
+ if (xdp_rxq_info_is_reg(&ring->xdp_q))
+ xdp_rxq_info_unreg(&ring->xdp_q);
+ page_pool_destroy(ring->page_pool);
+ ring->page_pool = NULL;
+ }
}
static int mtk_hwlro_rx_init(struct mtk_eth *eth)
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -18,6 +18,8 @@
#include <linux/rhashtable.h>
#include <linux/dim.h>
#include <linux/bitfield.h>
+#include <net/page_pool.h>
+#include <linux/bpf_trace.h>
#include "mtk_ppe.h"
#define MTK_QDMA_PAGE_SIZE 2048
@@ -49,6 +51,11 @@
#define MTK_HW_FEATURES_MT7628 (NETIF_F_SG | NETIF_F_RXCSUM)
#define NEXT_DESP_IDX(X, Y) (((X) + 1) & ((Y) - 1))
+#define MTK_PP_HEADROOM XDP_PACKET_HEADROOM
+#define MTK_PP_PAD (MTK_PP_HEADROOM + \
+ SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
+#define MTK_PP_MAX_BUF_SIZE (PAGE_SIZE - MTK_PP_PAD)
+
#define MTK_QRX_OFFSET 0x10
#define MTK_MAX_RX_RING_NUM 4
@@ -742,6 +749,9 @@ struct mtk_rx_ring {
bool calc_idx_update;
u16 calc_idx;
u32 crx_idx_reg;
+ /* page_pool */
+ struct page_pool *page_pool;
+ struct xdp_rxq_info xdp_q;
};
enum mkt_eth_capabilities {

291
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@ -0,0 +1,291 @@
From 7c26c20da5d420cde55618263be4aa2f6de53056 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Fri, 22 Jul 2022 09:19:37 +0200
Subject: [PATCH] net: ethernet: mtk_eth_soc: add basic XDP support
Introduce basic XDP support to mtk_eth_soc driver.
Supported XDP verdicts:
- XDP_PASS
- XDP_DROP
- XDP_REDIRECT
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 162 +++++++++++++++++---
drivers/net/ethernet/mediatek/mtk_eth_soc.h | 2 +
2 files changed, 145 insertions(+), 19 deletions(-)
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -1388,6 +1388,11 @@ static void mtk_update_rx_cpu_idx(struct
}
}
+static bool mtk_page_pool_enabled(struct mtk_eth *eth)
+{
+ return !eth->hwlro;
+}
+
static struct page_pool *mtk_create_page_pool(struct mtk_eth *eth,
struct xdp_rxq_info *xdp_q,
int id, int size)
@@ -1450,11 +1455,52 @@ static void mtk_rx_put_buff(struct mtk_r
skb_free_frag(data);
}
+static u32 mtk_xdp_run(struct mtk_eth *eth, struct mtk_rx_ring *ring,
+ struct xdp_buff *xdp, struct net_device *dev)
+{
+ struct bpf_prog *prog;
+ u32 act = XDP_PASS;
+
+ rcu_read_lock();
+
+ prog = rcu_dereference(eth->prog);
+ if (!prog)
+ goto out;
+
+ act = bpf_prog_run_xdp(prog, xdp);
+ switch (act) {
+ case XDP_PASS:
+ goto out;
+ case XDP_REDIRECT:
+ if (unlikely(xdp_do_redirect(dev, xdp, prog))) {
+ act = XDP_DROP;
+ break;
+ }
+ goto out;
+ default:
+ bpf_warn_invalid_xdp_action(act);
+ fallthrough;
+ case XDP_ABORTED:
+ trace_xdp_exception(dev, prog, act);
+ fallthrough;
+ case XDP_DROP:
+ break;
+ }
+
+ page_pool_put_full_page(ring->page_pool,
+ virt_to_head_page(xdp->data), true);
+out:
+ rcu_read_unlock();
+
+ return act;
+}
+
static int mtk_poll_rx(struct napi_struct *napi, int budget,
struct mtk_eth *eth)
{
struct dim_sample dim_sample = {};
struct mtk_rx_ring *ring;
+ bool xdp_flush = false;
int idx;
struct sk_buff *skb;
u8 *data, *new_data;
@@ -1463,9 +1509,9 @@ static int mtk_poll_rx(struct napi_struc
while (done < budget) {
unsigned int pktlen, *rxdcsum;
- u32 hash, reason, reserve_len;
struct net_device *netdev;
dma_addr_t dma_addr;
+ u32 hash, reason;
int mac = 0;
ring = mtk_get_rx_ring(eth);
@@ -1495,8 +1541,14 @@ static int mtk_poll_rx(struct napi_struc
if (unlikely(test_bit(MTK_RESETTING, &eth->state)))
goto release_desc;
+ pktlen = RX_DMA_GET_PLEN0(trxd.rxd2);
+
/* alloc new buffer */
if (ring->page_pool) {
+ struct page *page = virt_to_head_page(data);
+ struct xdp_buff xdp;
+ u32 ret;
+
new_data = mtk_page_pool_get_buff(ring->page_pool,
&dma_addr,
GFP_ATOMIC);
@@ -1504,6 +1556,34 @@ static int mtk_poll_rx(struct napi_struc
netdev->stats.rx_dropped++;
goto release_desc;
}
+
+ dma_sync_single_for_cpu(eth->dma_dev,
+ page_pool_get_dma_addr(page) + MTK_PP_HEADROOM,
+ pktlen, page_pool_get_dma_dir(ring->page_pool));
+
+ xdp_init_buff(&xdp, PAGE_SIZE, &ring->xdp_q);
+ xdp_prepare_buff(&xdp, data, MTK_PP_HEADROOM, pktlen,
+ false);
+ xdp_buff_clear_frags_flag(&xdp);
+
+ ret = mtk_xdp_run(eth, ring, &xdp, netdev);
+ if (ret == XDP_REDIRECT)
+ xdp_flush = true;
+
+ if (ret != XDP_PASS)
+ goto skip_rx;
+
+ skb = build_skb(data, PAGE_SIZE);
+ if (unlikely(!skb)) {
+ page_pool_put_full_page(ring->page_pool,
+ page, true);
+ netdev->stats.rx_dropped++;
+ goto skip_rx;
+ }
+
+ skb_reserve(skb, xdp.data - xdp.data_hard_start);
+ skb_put(skb, xdp.data_end - xdp.data);
+ skb_mark_for_recycle(skb);
} else {
if (ring->frag_size <= PAGE_SIZE)
new_data = napi_alloc_frag(ring->frag_size);
@@ -1527,27 +1607,20 @@ static int mtk_poll_rx(struct napi_struc
dma_unmap_single(eth->dma_dev, trxd.rxd1,
ring->buf_size, DMA_FROM_DEVICE);
- }
- /* receive data */
- skb = build_skb(data, ring->frag_size);
- if (unlikely(!skb)) {
- mtk_rx_put_buff(ring, data, true);
- netdev->stats.rx_dropped++;
- goto skip_rx;
- }
+ skb = build_skb(data, ring->frag_size);
+ if (unlikely(!skb)) {
+ netdev->stats.rx_dropped++;
+ skb_free_frag(data);
+ goto skip_rx;
+ }
- if (ring->page_pool) {
- reserve_len = MTK_PP_HEADROOM;
- skb_mark_for_recycle(skb);
- } else {
- reserve_len = NET_SKB_PAD + NET_IP_ALIGN;
+ skb_reserve(skb, NET_SKB_PAD + NET_IP_ALIGN);
+ skb_put(skb, pktlen);
}
- skb_reserve(skb, reserve_len);
- pktlen = RX_DMA_GET_PLEN0(trxd.rxd2);
skb->dev = netdev;
- skb_put(skb, pktlen);
+ bytes += skb->len;
if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2))
rxdcsum = &trxd.rxd3;
@@ -1559,7 +1632,6 @@ static int mtk_poll_rx(struct napi_struc
else
skb_checksum_none_assert(skb);
skb->protocol = eth_type_trans(skb, netdev);
- bytes += pktlen;
hash = trxd.rxd4 & MTK_RXD4_FOE_ENTRY;
if (hash != MTK_RXD4_FOE_ENTRY) {
@@ -1622,6 +1694,9 @@ rx_done:
&dim_sample);
net_dim(&eth->rx_dim, dim_sample);
+ if (xdp_flush)
+ xdp_do_flush_map();
+
return done;
}
@@ -1967,7 +2042,7 @@ static int mtk_rx_alloc(struct mtk_eth *
if (!ring->data)
return -ENOMEM;
- if (!eth->hwlro) {
+ if (mtk_page_pool_enabled(eth)) {
struct page_pool *pp;
pp = mtk_create_page_pool(eth, &ring->xdp_q, ring_no,
@@ -2707,6 +2782,48 @@ static int mtk_stop(struct net_device *d
return 0;
}
+static int mtk_xdp_setup(struct net_device *dev, struct bpf_prog *prog,
+ struct netlink_ext_ack *extack)
+{
+ struct mtk_mac *mac = netdev_priv(dev);
+ struct mtk_eth *eth = mac->hw;
+ struct bpf_prog *old_prog;
+ bool need_update;
+
+ if (eth->hwlro) {
+ NL_SET_ERR_MSG_MOD(extack, "XDP not supported with HWLRO");
+ return -EOPNOTSUPP;
+ }
+
+ if (dev->mtu > MTK_PP_MAX_BUF_SIZE) {
+ NL_SET_ERR_MSG_MOD(extack, "MTU too large for XDP");
+ return -EOPNOTSUPP;
+ }
+
+ need_update = !!eth->prog != !!prog;
+ if (netif_running(dev) && need_update)
+ mtk_stop(dev);
+
+ old_prog = rcu_replace_pointer(eth->prog, prog, lockdep_rtnl_is_held());
+ if (old_prog)
+ bpf_prog_put(old_prog);
+
+ if (netif_running(dev) && need_update)
+ return mtk_open(dev);
+
+ return 0;
+}
+
+static int mtk_xdp(struct net_device *dev, struct netdev_bpf *xdp)
+{
+ switch (xdp->command) {
+ case XDP_SETUP_PROG:
+ return mtk_xdp_setup(dev, xdp->prog, xdp->extack);
+ default:
+ return -EINVAL;
+ }
+}
+
static void ethsys_reset(struct mtk_eth *eth, u32 reset_bits)
{
regmap_update_bits(eth->ethsys, ETHSYS_RSTCTRL,
@@ -3002,6 +3119,12 @@ static int mtk_change_mtu(struct net_dev
struct mtk_eth *eth = mac->hw;
u32 mcr_cur, mcr_new;
+ if (rcu_access_pointer(eth->prog) &&
+ length > MTK_PP_MAX_BUF_SIZE) {
+ netdev_err(dev, "Invalid MTU for XDP mode\n");
+ return -EINVAL;
+ }
+
if (!MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628)) {
mcr_cur = mtk_r32(mac->hw, MTK_MAC_MCR(mac->id));
mcr_new = mcr_cur & ~MAC_MCR_MAX_RX_MASK;
@@ -3329,6 +3452,7 @@ static const struct net_device_ops mtk_n
.ndo_poll_controller = mtk_poll_controller,
#endif
.ndo_setup_tc = mtk_eth_setup_tc,
+ .ndo_bpf = mtk_xdp,
};
static int mtk_add_mac(struct mtk_eth *eth, struct device_node *np)
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -1085,6 +1085,8 @@ struct mtk_eth {
struct mtk_ppe *ppe;
struct rhashtable flow_table;
+
+ struct bpf_prog __rcu *prog;
};
/* struct mtk_mac - the structure that holds the info about the MACs of the

110
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@ -0,0 +1,110 @@
From 916a6ee836d6b7b8ef1ed5f0515e256ca60e9968 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Fri, 22 Jul 2022 09:19:38 +0200
Subject: [PATCH] net: ethernet: mtk_eth_soc: introduce xdp ethtool counters
Report xdp stats through ethtool
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 26 +++++++++++++++++++--
drivers/net/ethernet/mediatek/mtk_eth_soc.h | 12 ++++++++++
2 files changed, 36 insertions(+), 2 deletions(-)
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -34,6 +34,10 @@ MODULE_PARM_DESC(msg_level, "Message lev
#define MTK_ETHTOOL_STAT(x) { #x, \
offsetof(struct mtk_hw_stats, x) / sizeof(u64) }
+#define MTK_ETHTOOL_XDP_STAT(x) { #x, \
+ offsetof(struct mtk_hw_stats, xdp_stats.x) / \
+ sizeof(u64) }
+
static const struct mtk_reg_map mtk_reg_map = {
.tx_irq_mask = 0x1a1c,
.tx_irq_status = 0x1a18,
@@ -141,6 +145,13 @@ static const struct mtk_ethtool_stats {
MTK_ETHTOOL_STAT(rx_long_errors),
MTK_ETHTOOL_STAT(rx_checksum_errors),
MTK_ETHTOOL_STAT(rx_flow_control_packets),
+ MTK_ETHTOOL_XDP_STAT(rx_xdp_redirect),
+ MTK_ETHTOOL_XDP_STAT(rx_xdp_pass),
+ MTK_ETHTOOL_XDP_STAT(rx_xdp_drop),
+ MTK_ETHTOOL_XDP_STAT(rx_xdp_tx),
+ MTK_ETHTOOL_XDP_STAT(rx_xdp_tx_errors),
+ MTK_ETHTOOL_XDP_STAT(tx_xdp_xmit),
+ MTK_ETHTOOL_XDP_STAT(tx_xdp_xmit_errors),
};
static const char * const mtk_clks_source_name[] = {
@@ -1458,6 +1469,9 @@ static void mtk_rx_put_buff(struct mtk_r
static u32 mtk_xdp_run(struct mtk_eth *eth, struct mtk_rx_ring *ring,
struct xdp_buff *xdp, struct net_device *dev)
{
+ struct mtk_mac *mac = netdev_priv(dev);
+ struct mtk_hw_stats *hw_stats = mac->hw_stats;
+ u64 *count = &hw_stats->xdp_stats.rx_xdp_drop;
struct bpf_prog *prog;
u32 act = XDP_PASS;
@@ -1470,13 +1484,16 @@ static u32 mtk_xdp_run(struct mtk_eth *e
act = bpf_prog_run_xdp(prog, xdp);
switch (act) {
case XDP_PASS:
- goto out;
+ count = &hw_stats->xdp_stats.rx_xdp_pass;
+ goto update_stats;
case XDP_REDIRECT:
if (unlikely(xdp_do_redirect(dev, xdp, prog))) {
act = XDP_DROP;
break;
}
- goto out;
+
+ count = &hw_stats->xdp_stats.rx_xdp_redirect;
+ goto update_stats;
default:
bpf_warn_invalid_xdp_action(act);
fallthrough;
@@ -1489,6 +1506,11 @@ static u32 mtk_xdp_run(struct mtk_eth *e
page_pool_put_full_page(ring->page_pool,
virt_to_head_page(xdp->data), true);
+
+update_stats:
+ u64_stats_update_begin(&hw_stats->syncp);
+ *count = *count + 1;
+ u64_stats_update_end(&hw_stats->syncp);
out:
rcu_read_unlock();
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -567,6 +567,16 @@ struct mtk_tx_dma_v2 {
struct mtk_eth;
struct mtk_mac;
+struct mtk_xdp_stats {
+ u64 rx_xdp_redirect;
+ u64 rx_xdp_pass;
+ u64 rx_xdp_drop;
+ u64 rx_xdp_tx;
+ u64 rx_xdp_tx_errors;
+ u64 tx_xdp_xmit;
+ u64 tx_xdp_xmit_errors;
+};
+
/* struct mtk_hw_stats - the structure that holds the traffic statistics.
* @stats_lock: make sure that stats operations are atomic
* @reg_offset: the status register offset of the SoC
@@ -590,6 +600,8 @@ struct mtk_hw_stats {
u64 rx_checksum_errors;
u64 rx_flow_control_packets;
+ struct mtk_xdp_stats xdp_stats;
+
spinlock_t stats_lock;
u32 reg_offset;
struct u64_stats_sync syncp;

340
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@ -0,0 +1,340 @@
From 5886d26fd25bbe26130e3e5f7474b9b3e98a3469 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Fri, 22 Jul 2022 09:19:39 +0200
Subject: [PATCH] net: ethernet: mtk_eth_soc: add xmit XDP support
Introduce XDP support for XDP_TX verdict and ndo_xdp_xmit function
pointer.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 192 +++++++++++++++++---
drivers/net/ethernet/mediatek/mtk_eth_soc.h | 10 +-
2 files changed, 180 insertions(+), 22 deletions(-)
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -987,15 +987,26 @@ static void mtk_tx_unmap(struct mtk_eth
}
}
- tx_buf->flags = 0;
- if (tx_buf->skb &&
- (tx_buf->skb != (struct sk_buff *)MTK_DMA_DUMMY_DESC)) {
- if (napi)
- napi_consume_skb(tx_buf->skb, napi);
+ if (tx_buf->type == MTK_TYPE_SKB) {
+ if (tx_buf->data &&
+ tx_buf->data != (void *)MTK_DMA_DUMMY_DESC) {
+ struct sk_buff *skb = tx_buf->data;
+
+ if (napi)
+ napi_consume_skb(skb, napi);
+ else
+ dev_kfree_skb_any(skb);
+ }
+ } else if (tx_buf->data) {
+ struct xdp_frame *xdpf = tx_buf->data;
+
+ if (napi && tx_buf->type == MTK_TYPE_XDP_TX)
+ xdp_return_frame_rx_napi(xdpf);
else
- dev_kfree_skb_any(tx_buf->skb);
+ xdp_return_frame(xdpf);
}
- tx_buf->skb = NULL;
+ tx_buf->flags = 0;
+ tx_buf->data = NULL;
}
static void setup_tx_buf(struct mtk_eth *eth, struct mtk_tx_buf *tx_buf,
@@ -1012,7 +1023,7 @@ static void setup_tx_buf(struct mtk_eth
dma_unmap_addr_set(tx_buf, dma_addr1, mapped_addr);
dma_unmap_len_set(tx_buf, dma_len1, size);
} else {
- tx_buf->skb = (struct sk_buff *)MTK_DMA_DUMMY_DESC;
+ tx_buf->data = (void *)MTK_DMA_DUMMY_DESC;
txd->txd1 = mapped_addr;
txd->txd2 = TX_DMA_PLEN0(size);
dma_unmap_addr_set(tx_buf, dma_addr0, mapped_addr);
@@ -1188,7 +1199,7 @@ static int mtk_tx_map(struct sk_buff *sk
soc->txrx.txd_size);
if (new_desc)
memset(tx_buf, 0, sizeof(*tx_buf));
- tx_buf->skb = (struct sk_buff *)MTK_DMA_DUMMY_DESC;
+ tx_buf->data = (void *)MTK_DMA_DUMMY_DESC;
tx_buf->flags |= MTK_TX_FLAGS_PAGE0;
tx_buf->flags |= (!mac->id) ? MTK_TX_FLAGS_FPORT0 :
MTK_TX_FLAGS_FPORT1;
@@ -1202,7 +1213,8 @@ static int mtk_tx_map(struct sk_buff *sk
}
/* store skb to cleanup */
- itx_buf->skb = skb;
+ itx_buf->type = MTK_TYPE_SKB;
+ itx_buf->data = skb;
if (!MTK_HAS_CAPS(soc->caps, MTK_QDMA)) {
if (k & 0x1)
@@ -1414,13 +1426,14 @@ static struct page_pool *mtk_create_page
.pool_size = size,
.nid = NUMA_NO_NODE,
.dev = eth->dma_dev,
- .dma_dir = DMA_FROM_DEVICE,
.offset = MTK_PP_HEADROOM,
.max_len = MTK_PP_MAX_BUF_SIZE,
};
struct page_pool *pp;
int err;
+ pp_params.dma_dir = rcu_access_pointer(eth->prog) ? DMA_BIDIRECTIONAL
+ : DMA_FROM_DEVICE;
pp = page_pool_create(&pp_params);
if (IS_ERR(pp))
return pp;
@@ -1466,6 +1479,122 @@ static void mtk_rx_put_buff(struct mtk_r
skb_free_frag(data);
}
+static int mtk_xdp_submit_frame(struct mtk_eth *eth, struct xdp_frame *xdpf,
+ struct net_device *dev, bool dma_map)
+{
+ const struct mtk_soc_data *soc = eth->soc;
+ struct mtk_tx_ring *ring = &eth->tx_ring;
+ struct mtk_tx_dma_desc_info txd_info = {
+ .size = xdpf->len,
+ .first = true,
+ .last = true,
+ };
+ struct mtk_mac *mac = netdev_priv(dev);
+ struct mtk_tx_dma *txd, *txd_pdma;
+ int err = 0, index = 0, n_desc = 1;
+ struct mtk_tx_buf *tx_buf;
+
+ if (unlikely(test_bit(MTK_RESETTING, &eth->state)))
+ return -EBUSY;
+
+ if (unlikely(atomic_read(&ring->free_count) <= 1))
+ return -EBUSY;
+
+ spin_lock(&eth->page_lock);
+
+ txd = ring->next_free;
+ if (txd == ring->last_free) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ tx_buf = mtk_desc_to_tx_buf(ring, txd, soc->txrx.txd_size);
+ memset(tx_buf, 0, sizeof(*tx_buf));
+
+ if (dma_map) { /* ndo_xdp_xmit */
+ txd_info.addr = dma_map_single(eth->dma_dev, xdpf->data,
+ txd_info.size, DMA_TO_DEVICE);
+ if (unlikely(dma_mapping_error(eth->dma_dev, txd_info.addr))) {
+ err = -ENOMEM;
+ goto out;
+ }
+ tx_buf->flags |= MTK_TX_FLAGS_SINGLE0;
+ } else {
+ struct page *page = virt_to_head_page(xdpf->data);
+
+ txd_info.addr = page_pool_get_dma_addr(page) +
+ sizeof(*xdpf) + xdpf->headroom;
+ dma_sync_single_for_device(eth->dma_dev, txd_info.addr,
+ txd_info.size,
+ DMA_BIDIRECTIONAL);
+ }
+ mtk_tx_set_dma_desc(dev, txd, &txd_info);
+
+ tx_buf->flags |= !mac->id ? MTK_TX_FLAGS_FPORT0 : MTK_TX_FLAGS_FPORT1;
+
+ txd_pdma = qdma_to_pdma(ring, txd);
+ setup_tx_buf(eth, tx_buf, txd_pdma, txd_info.addr, txd_info.size,
+ index++);
+
+ /* store xdpf for cleanup */
+ tx_buf->type = dma_map ? MTK_TYPE_XDP_NDO : MTK_TYPE_XDP_TX;
+ tx_buf->data = xdpf;
+
+ if (!MTK_HAS_CAPS(soc->caps, MTK_QDMA)) {
+ if (index & 1)
+ txd_pdma->txd2 |= TX_DMA_LS0;
+ else
+ txd_pdma->txd2 |= TX_DMA_LS1;
+ }
+
+ ring->next_free = mtk_qdma_phys_to_virt(ring, txd->txd2);
+ atomic_sub(n_desc, &ring->free_count);
+
+ /* make sure that all changes to the dma ring are flushed before we
+ * continue
+ */
+ wmb();
+
+ if (MTK_HAS_CAPS(soc->caps, MTK_QDMA)) {
+ mtk_w32(eth, txd->txd2, soc->reg_map->qdma.ctx_ptr);
+ } else {
+ int idx;
+
+ idx = txd_to_idx(ring, txd, soc->txrx.txd_size);
+ mtk_w32(eth, NEXT_DESP_IDX(idx, ring->dma_size),
+ MT7628_TX_CTX_IDX0);
+ }
+out:
+ spin_unlock(&eth->page_lock);
+
+ return err;
+}
+
+static int mtk_xdp_xmit(struct net_device *dev, int num_frame,
+ struct xdp_frame **frames, u32 flags)
+{
+ struct mtk_mac *mac = netdev_priv(dev);
+ struct mtk_hw_stats *hw_stats = mac->hw_stats;
+ struct mtk_eth *eth = mac->hw;
+ int i, nxmit = 0;
+
+ if (unlikely(flags & ~XDP_XMIT_FLAGS_MASK))
+ return -EINVAL;
+
+ for (i = 0; i < num_frame; i++) {
+ if (mtk_xdp_submit_frame(eth, frames[i], dev, true))
+ break;
+ nxmit++;
+ }
+
+ u64_stats_update_begin(&hw_stats->syncp);
+ hw_stats->xdp_stats.tx_xdp_xmit += nxmit;
+ hw_stats->xdp_stats.tx_xdp_xmit_errors += num_frame - nxmit;
+ u64_stats_update_end(&hw_stats->syncp);
+
+ return nxmit;
+}
+
static u32 mtk_xdp_run(struct mtk_eth *eth, struct mtk_rx_ring *ring,
struct xdp_buff *xdp, struct net_device *dev)
{
@@ -1494,6 +1623,18 @@ static u32 mtk_xdp_run(struct mtk_eth *e
count = &hw_stats->xdp_stats.rx_xdp_redirect;
goto update_stats;
+ case XDP_TX: {
+ struct xdp_frame *xdpf = xdp_convert_buff_to_frame(xdp);
+
+ if (mtk_xdp_submit_frame(eth, xdpf, dev, false)) {
+ count = &hw_stats->xdp_stats.rx_xdp_tx_errors;
+ act = XDP_DROP;
+ break;
+ }
+
+ count = &hw_stats->xdp_stats.rx_xdp_tx;
+ goto update_stats;
+ }
default:
bpf_warn_invalid_xdp_action(act);
fallthrough;
@@ -1727,9 +1868,8 @@ static int mtk_poll_tx_qdma(struct mtk_e
{
const struct mtk_reg_map *reg_map = eth->soc->reg_map;
struct mtk_tx_ring *ring = &eth->tx_ring;
- struct mtk_tx_dma *desc;
- struct sk_buff *skb;
struct mtk_tx_buf *tx_buf;
+ struct mtk_tx_dma *desc;
u32 cpu, dma;
cpu = ring->last_free_ptr;
@@ -1750,15 +1890,21 @@ static int mtk_poll_tx_qdma(struct mtk_e
if (tx_buf->flags & MTK_TX_FLAGS_FPORT1)
mac = 1;
- skb = tx_buf->skb;
- if (!skb)
+ if (!tx_buf->data)
break;
- if (skb != (struct sk_buff *)MTK_DMA_DUMMY_DESC) {
+ if (tx_buf->type == MTK_TYPE_SKB &&
+ tx_buf->data != (void *)MTK_DMA_DUMMY_DESC) {
+ struct sk_buff *skb = tx_buf->data;
+
bytes[mac] += skb->len;
done[mac]++;
budget--;
+ } else if (tx_buf->type == MTK_TYPE_XDP_TX ||
+ tx_buf->type == MTK_TYPE_XDP_NDO) {
+ budget--;
}
+
mtk_tx_unmap(eth, tx_buf, true);
ring->last_free = desc;
@@ -1777,9 +1923,8 @@ static int mtk_poll_tx_pdma(struct mtk_e
unsigned int *done, unsigned int *bytes)
{
struct mtk_tx_ring *ring = &eth->tx_ring;
- struct mtk_tx_dma *desc;
- struct sk_buff *skb;
struct mtk_tx_buf *tx_buf;
+ struct mtk_tx_dma *desc;
u32 cpu, dma;
cpu = ring->cpu_idx;
@@ -1787,14 +1932,18 @@ static int mtk_poll_tx_pdma(struct mtk_e
while ((cpu != dma) && budget) {
tx_buf = &ring->buf[cpu];
- skb = tx_buf->skb;
- if (!skb)
+ if (!tx_buf->data)
break;
- if (skb != (struct sk_buff *)MTK_DMA_DUMMY_DESC) {
+ if (tx_buf->type == MTK_TYPE_SKB &&
+ tx_buf->data != (void *)MTK_DMA_DUMMY_DESC) {
+ struct sk_buff *skb = tx_buf->data;
bytes[0] += skb->len;
done[0]++;
budget--;
+ } else if (tx_buf->type == MTK_TYPE_XDP_TX ||
+ tx_buf->type == MTK_TYPE_XDP_NDO) {
+ budget--;
}
mtk_tx_unmap(eth, tx_buf, true);
@@ -3475,6 +3624,7 @@ static const struct net_device_ops mtk_n
#endif
.ndo_setup_tc = mtk_eth_setup_tc,
.ndo_bpf = mtk_xdp,
+ .ndo_xdp_xmit = mtk_xdp_xmit,
};
static int mtk_add_mac(struct mtk_eth *eth, struct device_node *np)
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -693,6 +693,12 @@ enum mtk_dev_state {
MTK_RESETTING
};
+enum mtk_tx_buf_type {
+ MTK_TYPE_SKB,
+ MTK_TYPE_XDP_TX,
+ MTK_TYPE_XDP_NDO,
+};
+
/* struct mtk_tx_buf - This struct holds the pointers to the memory pointed at
* by the TX descriptor s
* @skb: The SKB pointer of the packet being sent
@@ -702,7 +708,9 @@ enum mtk_dev_state {
* @dma_len1: The length of the second segment
*/
struct mtk_tx_buf {
- struct sk_buff *skb;
+ enum mtk_tx_buf_type type;
+ void *data;
+
u32 flags;
DEFINE_DMA_UNMAP_ADDR(dma_addr0);
DEFINE_DMA_UNMAP_LEN(dma_len0);

95
target/linux/generic/backport-5.15/706-04-v6.0-net-ethernet-mtk_eth_soc-add-support-for-page_pool_g.patch Normal file
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@ -0,0 +1,95 @@
From 84b9cd389036d4a262d8cee794d56c04095358a7 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Fri, 22 Jul 2022 09:19:40 +0200
Subject: [PATCH] net: ethernet: mtk_eth_soc: add support for
page_pool_get_stats
Introduce support for the page_pool stats API into mtk_eth_soc driver.
Report page_pool stats through ethtool.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/ethernet/mediatek/Kconfig | 1 +
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 37 +++++++++++++++++++--
2 files changed, 35 insertions(+), 3 deletions(-)
--- a/drivers/net/ethernet/mediatek/Kconfig
+++ b/drivers/net/ethernet/mediatek/Kconfig
@@ -17,6 +17,7 @@ config NET_MEDIATEK_SOC
select PHYLINK
select DIMLIB
select PAGE_POOL
+ select PAGE_POOL_STATS
help
This driver supports the gigabit ethernet MACs in the
MediaTek SoC family.
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -3485,11 +3485,18 @@ static void mtk_get_strings(struct net_d
int i;
switch (stringset) {
- case ETH_SS_STATS:
+ case ETH_SS_STATS: {
+ struct mtk_mac *mac = netdev_priv(dev);
+
for (i = 0; i < ARRAY_SIZE(mtk_ethtool_stats); i++) {
memcpy(data, mtk_ethtool_stats[i].str, ETH_GSTRING_LEN);
data += ETH_GSTRING_LEN;
}
+ if (mtk_page_pool_enabled(mac->hw))
+ page_pool_ethtool_stats_get_strings(data);
+ break;
+ }
+ default:
break;
}
}
@@ -3497,13 +3504,35 @@ static void mtk_get_strings(struct net_d
static int mtk_get_sset_count(struct net_device *dev, int sset)
{
switch (sset) {
- case ETH_SS_STATS:
- return ARRAY_SIZE(mtk_ethtool_stats);
+ case ETH_SS_STATS: {
+ int count = ARRAY_SIZE(mtk_ethtool_stats);
+ struct mtk_mac *mac = netdev_priv(dev);
+
+ if (mtk_page_pool_enabled(mac->hw))
+ count += page_pool_ethtool_stats_get_count();
+ return count;
+ }
default:
return -EOPNOTSUPP;
}
}
+static void mtk_ethtool_pp_stats(struct mtk_eth *eth, u64 *data)
+{
+ struct page_pool_stats stats = {};
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(eth->rx_ring); i++) {
+ struct mtk_rx_ring *ring = &eth->rx_ring[i];
+
+ if (!ring->page_pool)
+ continue;
+
+ page_pool_get_stats(ring->page_pool, &stats);
+ }
+ page_pool_ethtool_stats_get(data, &stats);
+}
+
static void mtk_get_ethtool_stats(struct net_device *dev,
struct ethtool_stats *stats, u64 *data)
{
@@ -3531,6 +3560,8 @@ static void mtk_get_ethtool_stats(struct
for (i = 0; i < ARRAY_SIZE(mtk_ethtool_stats); i++)
*data_dst++ = *(data_src + mtk_ethtool_stats[i].offset);
+ if (mtk_page_pool_enabled(mac->hw))
+ mtk_ethtool_pp_stats(mac->hw, data_dst);
} while (u64_stats_fetch_retry_irq(&hwstats->syncp, start));
}

113
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@ -0,0 +1,113 @@
From b16fe6d82b71fa0dd5c957bc22d66a694976d6eb Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Wed, 27 Jul 2022 23:20:50 +0200
Subject: [PATCH] net: ethernet: mtk_eth_soc: introduce mtk_xdp_frame_map
utility routine
This is a preliminary patch to add xdp multi-frag support to mtk_eth_soc
driver
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 68 +++++++++++++--------
1 file changed, 42 insertions(+), 26 deletions(-)
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -1479,6 +1479,41 @@ static void mtk_rx_put_buff(struct mtk_r
skb_free_frag(data);
}
+static int mtk_xdp_frame_map(struct mtk_eth *eth, struct net_device *dev,
+ struct mtk_tx_dma_desc_info *txd_info,
+ struct mtk_tx_dma *txd, struct mtk_tx_buf *tx_buf,
+ void *data, u16 headroom, int index, bool dma_map)
+{
+ struct mtk_tx_ring *ring = &eth->tx_ring;
+ struct mtk_mac *mac = netdev_priv(dev);
+ struct mtk_tx_dma *txd_pdma;
+
+ if (dma_map) { /* ndo_xdp_xmit */
+ txd_info->addr = dma_map_single(eth->dma_dev, data,
+ txd_info->size, DMA_TO_DEVICE);
+ if (unlikely(dma_mapping_error(eth->dma_dev, txd_info->addr)))
+ return -ENOMEM;
+
+ tx_buf->flags |= MTK_TX_FLAGS_SINGLE0;
+ } else {
+ struct page *page = virt_to_head_page(data);
+
+ txd_info->addr = page_pool_get_dma_addr(page) +
+ sizeof(struct xdp_frame) + headroom;
+ dma_sync_single_for_device(eth->dma_dev, txd_info->addr,
+ txd_info->size, DMA_BIDIRECTIONAL);
+ }
+ mtk_tx_set_dma_desc(dev, txd, txd_info);
+
+ tx_buf->flags |= !mac->id ? MTK_TX_FLAGS_FPORT0 : MTK_TX_FLAGS_FPORT1;
+
+ txd_pdma = qdma_to_pdma(ring, txd);
+ setup_tx_buf(eth, tx_buf, txd_pdma, txd_info->addr, txd_info->size,
+ index);
+
+ return 0;
+}
+
static int mtk_xdp_submit_frame(struct mtk_eth *eth, struct xdp_frame *xdpf,
struct net_device *dev, bool dma_map)
{
@@ -1489,9 +1524,8 @@ static int mtk_xdp_submit_frame(struct m
.first = true,
.last = true,
};
- struct mtk_mac *mac = netdev_priv(dev);
- struct mtk_tx_dma *txd, *txd_pdma;
int err = 0, index = 0, n_desc = 1;
+ struct mtk_tx_dma *txd, *txd_pdma;
struct mtk_tx_buf *tx_buf;
if (unlikely(test_bit(MTK_RESETTING, &eth->state)))
@@ -1511,36 +1545,18 @@ static int mtk_xdp_submit_frame(struct m
tx_buf = mtk_desc_to_tx_buf(ring, txd, soc->txrx.txd_size);
memset(tx_buf, 0, sizeof(*tx_buf));
- if (dma_map) { /* ndo_xdp_xmit */
- txd_info.addr = dma_map_single(eth->dma_dev, xdpf->data,
- txd_info.size, DMA_TO_DEVICE);
- if (unlikely(dma_mapping_error(eth->dma_dev, txd_info.addr))) {
- err = -ENOMEM;
- goto out;
- }
- tx_buf->flags |= MTK_TX_FLAGS_SINGLE0;
- } else {
- struct page *page = virt_to_head_page(xdpf->data);
-
- txd_info.addr = page_pool_get_dma_addr(page) +
- sizeof(*xdpf) + xdpf->headroom;
- dma_sync_single_for_device(eth->dma_dev, txd_info.addr,
- txd_info.size,
- DMA_BIDIRECTIONAL);
- }
- mtk_tx_set_dma_desc(dev, txd, &txd_info);
-
- tx_buf->flags |= !mac->id ? MTK_TX_FLAGS_FPORT0 : MTK_TX_FLAGS_FPORT1;
-
- txd_pdma = qdma_to_pdma(ring, txd);
- setup_tx_buf(eth, tx_buf, txd_pdma, txd_info.addr, txd_info.size,
- index++);
+ err = mtk_xdp_frame_map(eth, dev, &txd_info, txd, tx_buf,
+ xdpf->data, xdpf->headroom, index,
+ dma_map);
+ if (err < 0)
+ goto out;
/* store xdpf for cleanup */
tx_buf->type = dma_map ? MTK_TYPE_XDP_NDO : MTK_TYPE_XDP_TX;
tx_buf->data = xdpf;
if (!MTK_HAS_CAPS(soc->caps, MTK_QDMA)) {
+ txd_pdma = qdma_to_pdma(ring, txd);
if (index & 1)
txd_pdma->txd2 |= TX_DMA_LS0;
else

218
target/linux/generic/backport-5.15/706-06-v6.0-net-ethernet-mtk_eth_soc-introduce-xdp-multi-frag-su.patch Normal file
View File

@ -0,0 +1,218 @@
From 155738a4f319538a09f734ce1f5a2eac3ada1de2 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Wed, 27 Jul 2022 23:20:51 +0200
Subject: [PATCH] net: ethernet: mtk_eth_soc: introduce xdp multi-frag support
Add the capability to map non-linear xdp frames in XDP_TX and
ndo_xdp_xmit callback.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 125 +++++++++++++-------
1 file changed, 82 insertions(+), 43 deletions(-)
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -987,23 +987,22 @@ static void mtk_tx_unmap(struct mtk_eth
}
}
- if (tx_buf->type == MTK_TYPE_SKB) {
- if (tx_buf->data &&
- tx_buf->data != (void *)MTK_DMA_DUMMY_DESC) {
+ if (tx_buf->data && tx_buf->data != (void *)MTK_DMA_DUMMY_DESC) {
+ if (tx_buf->type == MTK_TYPE_SKB) {
struct sk_buff *skb = tx_buf->data;
if (napi)
napi_consume_skb(skb, napi);
else
dev_kfree_skb_any(skb);
- }
- } else if (tx_buf->data) {
- struct xdp_frame *xdpf = tx_buf->data;
+ } else {
+ struct xdp_frame *xdpf = tx_buf->data;
- if (napi && tx_buf->type == MTK_TYPE_XDP_TX)
- xdp_return_frame_rx_napi(xdpf);
- else
- xdp_return_frame(xdpf);
+ if (napi && tx_buf->type == MTK_TYPE_XDP_TX)
+ xdp_return_frame_rx_napi(xdpf);
+ else
+ xdp_return_frame(xdpf);
+ }
}
tx_buf->flags = 0;
tx_buf->data = NULL;
@@ -1506,6 +1505,8 @@ static int mtk_xdp_frame_map(struct mtk_
mtk_tx_set_dma_desc(dev, txd, txd_info);
tx_buf->flags |= !mac->id ? MTK_TX_FLAGS_FPORT0 : MTK_TX_FLAGS_FPORT1;
+ tx_buf->type = dma_map ? MTK_TYPE_XDP_NDO : MTK_TYPE_XDP_TX;
+ tx_buf->data = (void *)MTK_DMA_DUMMY_DESC;
txd_pdma = qdma_to_pdma(ring, txd);
setup_tx_buf(eth, tx_buf, txd_pdma, txd_info->addr, txd_info->size,
@@ -1517,43 +1518,69 @@ static int mtk_xdp_frame_map(struct mtk_
static int mtk_xdp_submit_frame(struct mtk_eth *eth, struct xdp_frame *xdpf,
struct net_device *dev, bool dma_map)
{
+ struct skb_shared_info *sinfo = xdp_get_shared_info_from_frame(xdpf);
const struct mtk_soc_data *soc = eth->soc;
struct mtk_tx_ring *ring = &eth->tx_ring;
struct mtk_tx_dma_desc_info txd_info = {
.size = xdpf->len,
.first = true,
- .last = true,
+ .last = !xdp_frame_has_frags(xdpf),
};
- int err = 0, index = 0, n_desc = 1;
- struct mtk_tx_dma *txd, *txd_pdma;
- struct mtk_tx_buf *tx_buf;
+ int err, index = 0, n_desc = 1, nr_frags;
+ struct mtk_tx_dma *htxd, *txd, *txd_pdma;
+ struct mtk_tx_buf *htx_buf, *tx_buf;
+ void *data = xdpf->data;
if (unlikely(test_bit(MTK_RESETTING, &eth->state)))
return -EBUSY;
- if (unlikely(atomic_read(&ring->free_count) <= 1))
+ nr_frags = unlikely(xdp_frame_has_frags(xdpf)) ? sinfo->nr_frags : 0;
+ if (unlikely(atomic_read(&ring->free_count) <= 1 + nr_frags))
return -EBUSY;
spin_lock(&eth->page_lock);
txd = ring->next_free;
if (txd == ring->last_free) {
- err = -ENOMEM;
- goto out;
+ spin_unlock(&eth->page_lock);
+ return -ENOMEM;
}
+ htxd = txd;
tx_buf = mtk_desc_to_tx_buf(ring, txd, soc->txrx.txd_size);
memset(tx_buf, 0, sizeof(*tx_buf));
+ htx_buf = tx_buf;
- err = mtk_xdp_frame_map(eth, dev, &txd_info, txd, tx_buf,
- xdpf->data, xdpf->headroom, index,
- dma_map);
- if (err < 0)
- goto out;
+ for (;;) {
+ err = mtk_xdp_frame_map(eth, dev, &txd_info, txd, tx_buf,
+ data, xdpf->headroom, index, dma_map);
+ if (err < 0)
+ goto unmap;
+
+ if (txd_info.last)
+ break;
+ if (MTK_HAS_CAPS(soc->caps, MTK_QDMA) || (index & 0x1)) {
+ txd = mtk_qdma_phys_to_virt(ring, txd->txd2);
+ txd_pdma = qdma_to_pdma(ring, txd);
+ if (txd == ring->last_free)
+ goto unmap;
+
+ tx_buf = mtk_desc_to_tx_buf(ring, txd,
+ soc->txrx.txd_size);
+ memset(tx_buf, 0, sizeof(*tx_buf));
+ n_desc++;
+ }
+
+ memset(&txd_info, 0, sizeof(struct mtk_tx_dma_desc_info));
+ txd_info.size = skb_frag_size(&sinfo->frags[index]);
+ txd_info.last = index + 1 == nr_frags;
+ data = skb_frag_address(&sinfo->frags[index]);
+
+ index++;
+ }
/* store xdpf for cleanup */
- tx_buf->type = dma_map ? MTK_TYPE_XDP_NDO : MTK_TYPE_XDP_TX;
- tx_buf->data = xdpf;
+ htx_buf->data = xdpf;
if (!MTK_HAS_CAPS(soc->caps, MTK_QDMA)) {
txd_pdma = qdma_to_pdma(ring, txd);
@@ -1580,7 +1607,24 @@ static int mtk_xdp_submit_frame(struct m
mtk_w32(eth, NEXT_DESP_IDX(idx, ring->dma_size),
MT7628_TX_CTX_IDX0);
}
-out:
+
+ spin_unlock(&eth->page_lock);
+
+ return 0;
+
+unmap:
+ while (htxd != txd) {
+ txd_pdma = qdma_to_pdma(ring, htxd);
+ tx_buf = mtk_desc_to_tx_buf(ring, htxd, soc->txrx.txd_size);
+ mtk_tx_unmap(eth, tx_buf, false);
+
+ htxd->txd3 = TX_DMA_LS0 | TX_DMA_OWNER_CPU;
+ if (!MTK_HAS_CAPS(soc->caps, MTK_QDMA))
+ txd_pdma->txd2 = TX_DMA_DESP2_DEF;
+
+ htxd = mtk_qdma_phys_to_virt(ring, htxd->txd2);
+ }
+
spin_unlock(&eth->page_lock);
return err;
@@ -1909,18 +1953,15 @@ static int mtk_poll_tx_qdma(struct mtk_e
if (!tx_buf->data)
break;
- if (tx_buf->type == MTK_TYPE_SKB &&
- tx_buf->data != (void *)MTK_DMA_DUMMY_DESC) {
- struct sk_buff *skb = tx_buf->data;
+ if (tx_buf->data != (void *)MTK_DMA_DUMMY_DESC) {
+ if (tx_buf->type == MTK_TYPE_SKB) {
+ struct sk_buff *skb = tx_buf->data;
- bytes[mac] += skb->len;
- done[mac]++;
- budget--;
- } else if (tx_buf->type == MTK_TYPE_XDP_TX ||
- tx_buf->type == MTK_TYPE_XDP_NDO) {
+ bytes[mac] += skb->len;
+ done[mac]++;
+ }
budget--;
}
-
mtk_tx_unmap(eth, tx_buf, true);
ring->last_free = desc;
@@ -1951,17 +1992,15 @@ static int mtk_poll_tx_pdma(struct mtk_e
if (!tx_buf->data)
break;
- if (tx_buf->type == MTK_TYPE_SKB &&
- tx_buf->data != (void *)MTK_DMA_DUMMY_DESC) {
- struct sk_buff *skb = tx_buf->data;
- bytes[0] += skb->len;
- done[0]++;
- budget--;
- } else if (tx_buf->type == MTK_TYPE_XDP_TX ||
- tx_buf->type == MTK_TYPE_XDP_NDO) {
+ if (tx_buf->data != (void *)MTK_DMA_DUMMY_DESC) {
+ if (tx_buf->type == MTK_TYPE_SKB) {
+ struct sk_buff *skb = tx_buf->data;
+
+ bytes[0] += skb->len;
+ done[0]++;
+ }
budget--;
}
-
mtk_tx_unmap(eth, tx_buf, true);
desc = ring->dma + cpu * eth->soc->txrx.txd_size;

10
target/linux/generic/backport-5.15/710-v6.0-net-ethernet-mtk_eth_soc-fix-hw-hash-reporting-for-M.patch
View File

@ -18,9 +18,9 @@ Signed-off-by: Paolo Abeni <pabeni@redhat.com>
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -1469,10 +1469,19 @@ static int mtk_poll_rx(struct napi_struc @@ -1845,10 +1845,19 @@ static int mtk_poll_rx(struct napi_struc
skb->dev = netdev; skb->dev = netdev;
skb_put(skb, pktlen); bytes += skb->len;
- if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) - if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2))
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) { + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) {
@ -40,9 +40,9 @@ Signed-off-by: Paolo Abeni <pabeni@redhat.com>
if (*rxdcsum & eth->soc->txrx.rx_dma_l4_valid) if (*rxdcsum & eth->soc->txrx.rx_dma_l4_valid)
skb->ip_summed = CHECKSUM_UNNECESSARY; skb->ip_summed = CHECKSUM_UNNECESSARY;
@@ -1481,16 +1490,9 @@ static int mtk_poll_rx(struct napi_struc @@ -1856,16 +1865,9 @@ static int mtk_poll_rx(struct napi_struc
skb_checksum_none_assert(skb);
skb->protocol = eth_type_trans(skb, netdev); skb->protocol = eth_type_trans(skb, netdev);
bytes += pktlen;
- hash = trxd.rxd4 & MTK_RXD4_FOE_ENTRY; - hash = trxd.rxd4 & MTK_RXD4_FOE_ENTRY;
- if (hash != MTK_RXD4_FOE_ENTRY) { - if (hash != MTK_RXD4_FOE_ENTRY) {
@ -60,7 +60,7 @@ Signed-off-by: Paolo Abeni <pabeni@redhat.com>
if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) { if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) {
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -307,6 +307,11 @@ @@ -314,6 +314,11 @@
#define RX_DMA_L4_VALID_PDMA BIT(30) /* when PDMA is used */ #define RX_DMA_L4_VALID_PDMA BIT(30) /* when PDMA is used */
#define RX_DMA_SPECIAL_TAG BIT(22) #define RX_DMA_SPECIAL_TAG BIT(22)

33
target/linux/generic/backport-5.15/711-v6.0-04-net-ethernet-mtk_eth_soc-remove-mtk_foe_entry_timest.patch Normal file
View File

@ -0,0 +1,33 @@
From c9daab322313087afde8c46f41df3c628410ae20 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Mon, 5 Sep 2022 14:46:01 +0200
Subject: [PATCH] net: ethernet: mtk_eth_soc: remove mtk_foe_entry_timestamp
Get rid of mtk_foe_entry_timestamp routine since it is no longer used.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/ethernet/mediatek/mtk_ppe.h | 11 -----------
1 file changed, 11 deletions(-)
--- a/drivers/net/ethernet/mediatek/mtk_ppe.h
+++ b/drivers/net/ethernet/mediatek/mtk_ppe.h
@@ -302,17 +302,6 @@ mtk_ppe_check_skb(struct mtk_ppe *ppe, s
__mtk_ppe_check_skb(ppe, skb, hash);
}
-static inline int
-mtk_foe_entry_timestamp(struct mtk_ppe *ppe, u16 hash)
-{
- u32 ib1 = READ_ONCE(ppe->foe_table[hash].ib1);
-
- if (FIELD_GET(MTK_FOE_IB1_STATE, ib1) != MTK_FOE_STATE_BIND)
- return -1;
-
- return FIELD_GET(MTK_FOE_IB1_BIND_TIMESTAMP, ib1);
-}
-
int mtk_foe_entry_prepare(struct mtk_foe_entry *entry, int type, int l4proto,
u8 pse_port, u8 *src_mac, u8 *dest_mac);
int mtk_foe_entry_set_pse_port(struct mtk_foe_entry *entry, u8 port);

35
target/linux/generic/backport-5.15/712-v6.0-net-ethernet-mtk_eth_soc-enable-XDP-support-just-for.patch Normal file
View File

@ -0,0 +1,35 @@
From 5e69163d3b9931098922b3fc2f8e786af8c1f37e Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Tue, 13 Sep 2022 15:03:05 +0200
Subject: [PATCH] net: ethernet: mtk_eth_soc: enable XDP support just for
MT7986 SoC
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Disable page_pool/XDP support for MT7621 SoC in order fix a regression
introduce adding XDP for MT7986 SoC. There is no a real use case for XDP
on MT7621 since it is a low-end cpu. Moreover this patch reduces the
memory footprint.
Tested-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Tested-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Fixes: 23233e577ef9 ("net: ethernet: mtk_eth_soc: rely on page_pool for single page buffers")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/2bf31e27b888c43228b0d84dd2ef5033338269e2.1663074002.git.lorenzo@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -1412,7 +1412,7 @@ static void mtk_update_rx_cpu_idx(struct
static bool mtk_page_pool_enabled(struct mtk_eth *eth)
{
- return !eth->hwlro;
+ return MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2);
}
static struct page_pool *mtk_create_page_pool(struct mtk_eth *eth,

4
target/linux/generic/hack-5.15/721-net-add-packet-mangeling.patch
View File

@ -71,7 +71,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
*/ */
--- a/include/linux/skbuff.h --- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h +++ b/include/linux/skbuff.h
@@ -2851,6 +2851,10 @@ static inline int pskb_trim(struct sk_bu @@ -2852,6 +2852,10 @@ static inline int pskb_trim(struct sk_bu
return (len < skb->len) ? __pskb_trim(skb, len) : 0; return (len < skb->len) ? __pskb_trim(skb, len) : 0;
} }
@ -82,7 +82,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
/** /**
* pskb_trim_unique - remove end from a paged unique (not cloned) buffer * pskb_trim_unique - remove end from a paged unique (not cloned) buffer
* @skb: buffer to alter * @skb: buffer to alter
@@ -3001,16 +3005,6 @@ static inline struct sk_buff *dev_alloc_ @@ -3002,16 +3006,6 @@ static inline struct sk_buff *dev_alloc_
} }

2
target/linux/generic/pending-5.15/655-increase_skb_pad.patch
View File

@ -9,7 +9,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
--- a/include/linux/skbuff.h --- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h +++ b/include/linux/skbuff.h
@@ -2817,7 +2817,7 @@ static inline int pskb_network_may_pull( @@ -2818,7 +2818,7 @@ static inline int pskb_network_may_pull(
* NET_IP_ALIGN(2) + ethernet_header(14) + IP_header(20/40) + ports(8) * NET_IP_ALIGN(2) + ethernet_header(14) + IP_header(20/40) + ports(8)
*/ */
#ifndef NET_SKB_PAD #ifndef NET_SKB_PAD

2
target/linux/generic/pending-5.15/680-NET-skip-GRO-for-foreign-MAC-addresses.patch
View File

@ -22,7 +22,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
#endif #endif
--- a/include/linux/skbuff.h --- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h +++ b/include/linux/skbuff.h
@@ -890,6 +890,7 @@ struct sk_buff { @@ -891,6 +891,7 @@ struct sk_buff {
#ifdef CONFIG_IPV6_NDISC_NODETYPE #ifdef CONFIG_IPV6_NDISC_NODETYPE
__u8 ndisc_nodetype:2; __u8 ndisc_nodetype:2;
#endif #endif

6
target/linux/generic/pending-5.15/702-net-ethernet-mtk_eth_soc-enable-threaded-NAPI.patch
View File

@ -10,7 +10,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -2383,8 +2383,8 @@ static irqreturn_t mtk_handle_irq_rx(int @@ -2789,8 +2789,8 @@ static irqreturn_t mtk_handle_irq_rx(int
eth->rx_events++; eth->rx_events++;
if (likely(napi_schedule_prep(&eth->rx_napi))) { if (likely(napi_schedule_prep(&eth->rx_napi))) {
@ -20,7 +20,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
} }
return IRQ_HANDLED; return IRQ_HANDLED;
@@ -2396,8 +2396,8 @@ static irqreturn_t mtk_handle_irq_tx(int @@ -2802,8 +2802,8 @@ static irqreturn_t mtk_handle_irq_tx(int
eth->tx_events++; eth->tx_events++;
if (likely(napi_schedule_prep(&eth->tx_napi))) { if (likely(napi_schedule_prep(&eth->tx_napi))) {
@ -30,7 +30,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
} }
return IRQ_HANDLED; return IRQ_HANDLED;
@@ -3587,6 +3587,8 @@ static int mtk_probe(struct platform_dev @@ -4074,6 +4074,8 @@ static int mtk_probe(struct platform_dev
* for NAPI to work * for NAPI to work
*/ */
init_dummy_netdev(&eth->dummy_dev); init_dummy_netdev(&eth->dummy_dev);

127
target/linux/generic/pending-5.15/781-net-ethernet-mtk_eth_soc-move-gdma_to_ppe-and-ppe_ba.patch Normal file
View File

@ -0,0 +1,127 @@
From patchwork Thu Sep 8 19:33:38 2022
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Lorenzo Bianconi <lorenzo@kernel.org>
X-Patchwork-Id: 12970556
X-Patchwork-Delegate: kuba@kernel.org
From: Lorenzo Bianconi <lorenzo@kernel.org>
To: netdev@vger.kernel.org
Cc: nbd@nbd.name, john@phrozen.org, sean.wang@mediatek.com,
Mark-MC.Lee@mediatek.com, davem@davemloft.net, edumazet@google.com,
kuba@kernel.org, pabeni@redhat.com, matthias.bgg@gmail.com,
linux-mediatek@lists.infradead.org, lorenzo.bianconi@redhat.com,
Bo.Jiao@mediatek.com, sujuan.chen@mediatek.com,
ryder.Lee@mediatek.com, evelyn.tsai@mediatek.com,
devicetree@vger.kernel.org, robh@kernel.org
Subject: [PATCH net-next 03/12] net: ethernet: mtk_eth_soc: move gdma_to_ppe
and ppe_base definitions in mtk register map
Date: Thu, 8 Sep 2022 21:33:37 +0200
Message-Id:
<95938fc9cbe0223714be2658a49ca58e9baace00.1662661555.git.lorenzo@kernel.org>
X-Mailer: git-send-email 2.37.3
In-Reply-To: <cover.1662661555.git.lorenzo@kernel.org>
References: <cover.1662661555.git.lorenzo@kernel.org>
MIME-Version: 1.0
Precedence: bulk
List-ID: <netdev.vger.kernel.org>
X-Mailing-List: netdev@vger.kernel.org
X-Patchwork-Delegate: kuba@kernel.org
This is a preliminary patch to introduce mt7986 hw packet engine.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 15 +++++++++++----
drivers/net/ethernet/mediatek/mtk_eth_soc.h | 3 ++-
drivers/net/ethernet/mediatek/mtk_ppe.h | 2 --
3 files changed, 13 insertions(+), 7 deletions(-)
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -73,6 +73,8 @@ static const struct mtk_reg_map mtk_reg_
.fq_blen = 0x1b2c,
},
.gdm1_cnt = 0x2400,
+ .gdma_to_ppe0 = 0x4444,
+ .ppe_base = 0x0c00,
};
static const struct mtk_reg_map mt7628_reg_map = {
@@ -126,6 +128,8 @@ static const struct mtk_reg_map mt7986_r
.fq_blen = 0x472c,
},
.gdm1_cnt = 0x1c00,
+ .gdma_to_ppe0 = 0x3333,
+ .ppe_base = 0x2000,
};
/* strings used by ethtool */
@@ -2924,6 +2928,7 @@ static int mtk_open(struct net_device *d
/* we run 2 netdevs on the same dma ring so we only bring it up once */
if (!refcount_read(&eth->dma_refcnt)) {
+ const struct mtk_soc_data *soc = eth->soc;
u32 gdm_config = MTK_GDMA_TO_PDMA;
int err;
@@ -2931,15 +2936,15 @@ static int mtk_open(struct net_device *d
if (err)
return err;
- if (eth->soc->offload_version && mtk_ppe_start(eth->ppe) == 0)
- gdm_config = MTK_GDMA_TO_PPE;
+ if (soc->offload_version && mtk_ppe_start(eth->ppe) == 0)
+ gdm_config = soc->reg_map->gdma_to_ppe0;
mtk_gdm_config(eth, gdm_config);
napi_enable(&eth->tx_napi);
napi_enable(&eth->rx_napi);
mtk_tx_irq_enable(eth, MTK_TX_DONE_INT);
- mtk_rx_irq_enable(eth, eth->soc->txrx.rx_irq_done_mask);
+ mtk_rx_irq_enable(eth, soc->txrx.rx_irq_done_mask);
refcount_set(&eth->dma_refcnt, 1);
}
else
@@ -4045,7 +4050,9 @@ static int mtk_probe(struct platform_dev
}
if (eth->soc->offload_version) {
- eth->ppe = mtk_ppe_init(eth, eth->base + MTK_ETH_PPE_BASE, 2);
+ u32 ppe_addr = eth->soc->reg_map->ppe_base;
+
+ eth->ppe = mtk_ppe_init(eth, eth->base + ppe_addr, 2);
if (!eth->ppe) {
err = -ENOMEM;
goto err_free_dev;
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -105,7 +105,6 @@
#define MTK_GDMA_TCS_EN BIT(21)
#define MTK_GDMA_UCS_EN BIT(20)
#define MTK_GDMA_TO_PDMA 0x0
-#define MTK_GDMA_TO_PPE 0x4444
#define MTK_GDMA_DROP_ALL 0x7777
/* Unicast Filter MAC Address Register - Low */
@@ -952,6 +951,8 @@ struct mtk_reg_map {
u32 fq_blen; /* fq free page buffer length */
} qdma;
u32 gdm1_cnt;
+ u32 gdma_to_ppe0;
+ u32 ppe_base;
};
/* struct mtk_eth_data - This is the structure holding all differences
--- a/drivers/net/ethernet/mediatek/mtk_ppe.h
+++ b/drivers/net/ethernet/mediatek/mtk_ppe.h
@@ -8,8 +8,6 @@
#include <linux/bitfield.h>
#include <linux/rhashtable.h>
-#define MTK_ETH_PPE_BASE 0xc00
-
#define MTK_PPE_ENTRIES_SHIFT 3
#define MTK_PPE_ENTRIES (1024 << MTK_PPE_ENTRIES_SHIFT)
#define MTK_PPE_HASH_MASK (MTK_PPE_ENTRIES - 1)

199
target/linux/generic/pending-5.15/782-net-ethernet-mtk_eth_soc-move-ppe-table-hash-offset-.patch Normal file
View File

@ -0,0 +1,199 @@
From patchwork Thu Sep 8 19:33:38 2022
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Lorenzo Bianconi <lorenzo@kernel.org>
X-Patchwork-Id: 12970557
X-Patchwork-Delegate: kuba@kernel.org
From: Lorenzo Bianconi <lorenzo@kernel.org>
To: netdev@vger.kernel.org
Cc: nbd@nbd.name, john@phrozen.org, sean.wang@mediatek.com,
Mark-MC.Lee@mediatek.com, davem@davemloft.net, edumazet@google.com,
kuba@kernel.org, pabeni@redhat.com, matthias.bgg@gmail.com,
linux-mediatek@lists.infradead.org, lorenzo.bianconi@redhat.com,
Bo.Jiao@mediatek.com, sujuan.chen@mediatek.com,
ryder.Lee@mediatek.com, evelyn.tsai@mediatek.com,
devicetree@vger.kernel.org, robh@kernel.org
Subject: [PATCH net-next 04/12] net: ethernet: mtk_eth_soc: move ppe table
hash offset to mtk_soc_data structure
Date: Thu, 8 Sep 2022 21:33:38 +0200
Message-Id:
<cc263ffeaa3e1d7314e36a4f941e96d38e41a6bf.1662661555.git.lorenzo@kernel.org>
X-Mailer: git-send-email 2.37.3
In-Reply-To: <cover.1662661555.git.lorenzo@kernel.org>
References: <cover.1662661555.git.lorenzo@kernel.org>
MIME-Version: 1.0
Precedence: bulk
List-ID: <netdev.vger.kernel.org>
X-Mailing-List: netdev@vger.kernel.org
X-Patchwork-Delegate: kuba@kernel.org
This is a preliminary patch to introduce mt7986 hw packet engine.
Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com>
Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com>
Co-developed-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 4 ++++
drivers/net/ethernet/mediatek/mtk_eth_soc.h | 2 ++
drivers/net/ethernet/mediatek/mtk_ppe.c | 24 +++++++++++++++------
drivers/net/ethernet/mediatek/mtk_ppe.h | 2 +-
4 files changed, 25 insertions(+), 7 deletions(-)
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -4150,6 +4150,7 @@ static const struct mtk_soc_data mt7621_
.required_clks = MT7621_CLKS_BITMAP,
.required_pctl = false,
.offload_version = 2,
+ .hash_offset = 2,
.txrx = {
.txd_size = sizeof(struct mtk_tx_dma),
.rxd_size = sizeof(struct mtk_rx_dma),
@@ -4168,6 +4169,7 @@ static const struct mtk_soc_data mt7622_
.required_clks = MT7622_CLKS_BITMAP,
.required_pctl = false,
.offload_version = 2,
+ .hash_offset = 2,
.txrx = {
.txd_size = sizeof(struct mtk_tx_dma),
.rxd_size = sizeof(struct mtk_rx_dma),
@@ -4185,6 +4187,7 @@ static const struct mtk_soc_data mt7623_
.required_clks = MT7623_CLKS_BITMAP,
.required_pctl = true,
.offload_version = 2,
+ .hash_offset = 2,
.txrx = {
.txd_size = sizeof(struct mtk_tx_dma),
.rxd_size = sizeof(struct mtk_rx_dma),
@@ -4218,6 +4221,7 @@ static const struct mtk_soc_data mt7986_
.caps = MT7986_CAPS,
.required_clks = MT7986_CLKS_BITMAP,
.required_pctl = false,
+ .hash_offset = 4,
.txrx = {
.txd_size = sizeof(struct mtk_tx_dma_v2),
.rxd_size = sizeof(struct mtk_rx_dma_v2),
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -966,6 +966,7 @@ struct mtk_reg_map {
* the target SoC
* @required_pctl A bool value to show whether the SoC requires
* the extra setup for those pins used by GMAC.
+ * @hash_offset Flow table hash offset.
* @txd_size Tx DMA descriptor size.
* @rxd_size Rx DMA descriptor size.
* @rx_irq_done_mask Rx irq done register mask.
@@ -980,6 +981,7 @@ struct mtk_soc_data {
u32 required_clks;
bool required_pctl;
u8 offload_version;
+ u8 hash_offset;
netdev_features_t hw_features;
struct {
u32 txd_size;
--- a/drivers/net/ethernet/mediatek/mtk_ppe.c
+++ b/drivers/net/ethernet/mediatek/mtk_ppe.c
@@ -88,7 +88,7 @@ static void mtk_ppe_cache_enable(struct
enable * MTK_PPE_CACHE_CTL_EN);
}
-static u32 mtk_ppe_hash_entry(struct mtk_foe_entry *e)
+static u32 mtk_ppe_hash_entry(struct mtk_eth *eth, struct mtk_foe_entry *e)
{
u32 hv1, hv2, hv3;
u32 hash;
@@ -122,7 +122,7 @@ static u32 mtk_ppe_hash_entry(struct mtk
hash = (hash >> 24) | ((hash & 0xffffff) << 8);
hash ^= hv1 ^ hv2 ^ hv3;
hash ^= hash >> 16;
- hash <<= 1;
+ hash <<= (ffs(eth->soc->hash_offset) - 1);
hash &= MTK_PPE_ENTRIES - 1;
return hash;
@@ -540,15 +540,16 @@ mtk_foe_entry_commit_l2(struct mtk_ppe *
int mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
{
int type = FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, entry->data.ib1);
+ const struct mtk_soc_data *soc = ppe->eth->soc;
u32 hash;
if (type == MTK_PPE_PKT_TYPE_BRIDGE)
return mtk_foe_entry_commit_l2(ppe, entry);
- hash = mtk_ppe_hash_entry(&entry->data);
+ hash = mtk_ppe_hash_entry(ppe->eth, &entry->data);
entry->hash = 0xffff;
spin_lock_bh(&ppe_lock);
- hlist_add_head(&entry->list, &ppe->foe_flow[hash / 2]);
+ hlist_add_head(&entry->list, &ppe->foe_flow[hash / soc->hash_offset]);
spin_unlock_bh(&ppe_lock);
return 0;
@@ -558,6 +559,7 @@ static void
mtk_foe_entry_commit_subflow(struct mtk_ppe *ppe, struct mtk_flow_entry *entry,
u16 hash)
{
+ const struct mtk_soc_data *soc = ppe->eth->soc;
struct mtk_flow_entry *flow_info;
struct mtk_foe_entry foe, *hwe;
struct mtk_foe_mac_info *l2;
@@ -572,7 +574,8 @@ mtk_foe_entry_commit_subflow(struct mtk_
flow_info->l2_data.base_flow = entry;
flow_info->type = MTK_FLOW_TYPE_L2_SUBFLOW;
flow_info->hash = hash;
- hlist_add_head(&flow_info->list, &ppe->foe_flow[hash / 2]);
+ hlist_add_head(&flow_info->list,
+ &ppe->foe_flow[hash / soc->hash_offset]);
hlist_add_head(&flow_info->l2_data.list, &entry->l2_flows);
hwe = &ppe->foe_table[hash];
@@ -596,7 +599,8 @@ mtk_foe_entry_commit_subflow(struct mtk_
void __mtk_ppe_check_skb(struct mtk_ppe *ppe, struct sk_buff *skb, u16 hash)
{
- struct hlist_head *head = &ppe->foe_flow[hash / 2];
+ const struct mtk_soc_data *soc = ppe->eth->soc;
+ struct hlist_head *head = &ppe->foe_flow[hash / soc->hash_offset];
struct mtk_foe_entry *hwe = &ppe->foe_table[hash];
struct mtk_flow_entry *entry;
struct mtk_foe_bridge key = {};
@@ -680,9 +684,11 @@ int mtk_foe_entry_idle_time(struct mtk_p
struct mtk_ppe *mtk_ppe_init(struct mtk_eth *eth, void __iomem *base,
int version)
{
+ const struct mtk_soc_data *soc = eth->soc;
struct device *dev = eth->dev;
struct mtk_foe_entry *foe;
struct mtk_ppe *ppe;
+ u32 foe_flow_size;
ppe = devm_kzalloc(dev, sizeof(*ppe), GFP_KERNEL);
if (!ppe)
@@ -705,6 +711,12 @@ struct mtk_ppe *mtk_ppe_init(struct mtk_
ppe->foe_table = foe;
+ foe_flow_size = (MTK_PPE_ENTRIES / soc->hash_offset) *
+ sizeof(*ppe->foe_flow);
+ ppe->foe_flow = devm_kzalloc(dev, foe_flow_size, GFP_KERNEL);
+ if (!ppe->foe_flow)
+ return NULL;
+
mtk_ppe_debugfs_init(ppe);
return ppe;
--- a/drivers/net/ethernet/mediatek/mtk_ppe.h
+++ b/drivers/net/ethernet/mediatek/mtk_ppe.h
@@ -270,7 +270,7 @@ struct mtk_ppe {
dma_addr_t foe_phys;
u16 foe_check_time[MTK_PPE_ENTRIES];
- struct hlist_head foe_flow[MTK_PPE_ENTRIES / 2];
+ struct hlist_head *foe_flow;
struct rhashtable l2_flows;

317
target/linux/generic/pending-5.15/790-net-ethernet-mtk_eth_soc-add-the-capability-to-run-m.patch Normal file
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@ -0,0 +1,317 @@
From patchwork Thu Sep 8 19:33:39 2022
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Lorenzo Bianconi <lorenzo@kernel.org>
X-Patchwork-Id: 12970559
X-Patchwork-Delegate: kuba@kernel.org
Return-Path: <netdev-owner@kernel.org>
From: Lorenzo Bianconi <lorenzo@kernel.org>
To: netdev@vger.kernel.org
Cc: nbd@nbd.name, john@phrozen.org, sean.wang@mediatek.com,
Mark-MC.Lee@mediatek.com, davem@davemloft.net, edumazet@google.com,
kuba@kernel.org, pabeni@redhat.com, matthias.bgg@gmail.com,
linux-mediatek@lists.infradead.org, lorenzo.bianconi@redhat.com,
Bo.Jiao@mediatek.com, sujuan.chen@mediatek.com,
ryder.Lee@mediatek.com, evelyn.tsai@mediatek.com,
devicetree@vger.kernel.org, robh@kernel.org
Subject: [PATCH net-next 05/12] net: ethernet: mtk_eth_soc: add the capability
to run multiple ppe
Date: Thu, 8 Sep 2022 21:33:39 +0200
Message-Id:
<dd0254775390eb031c67c448df8b19e87df58558.1662661555.git.lorenzo@kernel.org>
X-Mailer: git-send-email 2.37.3
In-Reply-To: <cover.1662661555.git.lorenzo@kernel.org>
References: <cover.1662661555.git.lorenzo@kernel.org>
MIME-Version: 1.0
Precedence: bulk
List-ID: <netdev.vger.kernel.org>
X-Mailing-List: netdev@vger.kernel.org
X-Patchwork-Delegate: kuba@kernel.org
mt7986 chipset support multiple packet engines for wlan <-> eth
packet forwarding.
Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com>
Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com>
Co-developed-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 35 ++++++++++++-------
drivers/net/ethernet/mediatek/mtk_eth_soc.h | 2 +-
drivers/net/ethernet/mediatek/mtk_ppe.c | 14 +++++---
drivers/net/ethernet/mediatek/mtk_ppe.h | 9 +++--
.../net/ethernet/mediatek/mtk_ppe_debugfs.c | 8 ++---
.../net/ethernet/mediatek/mtk_ppe_offload.c | 13 +++----
6 files changed, 48 insertions(+), 33 deletions(-)
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -1871,7 +1871,7 @@ static int mtk_poll_rx(struct napi_struc
reason = FIELD_GET(MTK_RXD4_PPE_CPU_REASON, trxd.rxd4);
if (reason == MTK_PPE_CPU_REASON_HIT_UNBIND_RATE_REACHED)
- mtk_ppe_check_skb(eth->ppe, skb, hash);
+ mtk_ppe_check_skb(eth->ppe[0], skb, hash);
if (netdev->features & NETIF_F_HW_VLAN_CTAG_RX) {
if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) {
@@ -2929,15 +2929,19 @@ static int mtk_open(struct net_device *d
/* we run 2 netdevs on the same dma ring so we only bring it up once */
if (!refcount_read(&eth->dma_refcnt)) {
const struct mtk_soc_data *soc = eth->soc;
- u32 gdm_config = MTK_GDMA_TO_PDMA;
+ u32 gdm_config;
+ int i;
int err;
err = mtk_start_dma(eth);
if (err)
return err;
- if (soc->offload_version && mtk_ppe_start(eth->ppe) == 0)
- gdm_config = soc->reg_map->gdma_to_ppe0;
+ for (i = 0; i < ARRAY_SIZE(eth->ppe); i++)
+ mtk_ppe_start(eth->ppe[i]);
+
+ gdm_config = soc->offload_version ? soc->reg_map->gdma_to_ppe0
+ : MTK_GDMA_TO_PDMA;
mtk_gdm_config(eth, gdm_config);
@@ -2982,6 +2986,7 @@ static int mtk_stop(struct net_device *d
{
struct mtk_mac *mac = netdev_priv(dev);
struct mtk_eth *eth = mac->hw;
+ int i;
phylink_stop(mac->phylink);
@@ -3009,8 +3014,8 @@ static int mtk_stop(struct net_device *d
mtk_dma_free(eth);
- if (eth->soc->offload_version)
- mtk_ppe_stop(eth->ppe);
+ for (i = 0; i < ARRAY_SIZE(eth->ppe); i++)
+ mtk_ppe_stop(eth->ppe[i]);
return 0;
}
@@ -4050,12 +4055,19 @@ static int mtk_probe(struct platform_dev
}
if (eth->soc->offload_version) {
- u32 ppe_addr = eth->soc->reg_map->ppe_base;
+ u32 num_ppe;
- eth->ppe = mtk_ppe_init(eth, eth->base + ppe_addr, 2);
- if (!eth->ppe) {
- err = -ENOMEM;
- goto err_free_dev;
+ num_ppe = MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2) ? 2 : 1;
+ num_ppe = min_t(u32, ARRAY_SIZE(eth->ppe), num_ppe);
+ for (i = 0; i < num_ppe; i++) {
+ u32 ppe_addr = eth->soc->reg_map->ppe_base + i * 0x400;
+
+ eth->ppe[i] = mtk_ppe_init(eth, eth->base + ppe_addr,
+ eth->soc->offload_version, i);
+ if (!eth->ppe[i]) {
+ err = -ENOMEM;
+ goto err_free_dev;
+ }
}
err = mtk_eth_offload_init(eth);
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -1111,7 +1111,7 @@ struct mtk_eth {
int ip_align;
- struct mtk_ppe *ppe;
+ struct mtk_ppe *ppe[2];
struct rhashtable flow_table;
struct bpf_prog __rcu *prog;
--- a/drivers/net/ethernet/mediatek/mtk_ppe.c
+++ b/drivers/net/ethernet/mediatek/mtk_ppe.c
@@ -682,7 +682,7 @@ int mtk_foe_entry_idle_time(struct mtk_p
}
struct mtk_ppe *mtk_ppe_init(struct mtk_eth *eth, void __iomem *base,
- int version)
+ int version, int index)
{
const struct mtk_soc_data *soc = eth->soc;
struct device *dev = eth->dev;
@@ -717,7 +717,7 @@ struct mtk_ppe *mtk_ppe_init(struct mtk_
if (!ppe->foe_flow)
return NULL;
- mtk_ppe_debugfs_init(ppe);
+ mtk_ppe_debugfs_init(ppe, index);
return ppe;
}
@@ -738,10 +738,13 @@ static void mtk_ppe_init_foe_table(struc
ppe->foe_table[i + skip[k]].ib1 |= MTK_FOE_IB1_STATIC;
}
-int mtk_ppe_start(struct mtk_ppe *ppe)
+void mtk_ppe_start(struct mtk_ppe *ppe)
{
u32 val;
+ if (!ppe)
+ return;
+
mtk_ppe_init_foe_table(ppe);
ppe_w32(ppe, MTK_PPE_TB_BASE, ppe->foe_phys);
@@ -809,8 +812,6 @@ int mtk_ppe_start(struct mtk_ppe *ppe)
ppe_w32(ppe, MTK_PPE_GLO_CFG, val);
ppe_w32(ppe, MTK_PPE_DEFAULT_CPU_PORT, 0);
-
- return 0;
}
int mtk_ppe_stop(struct mtk_ppe *ppe)
@@ -818,6 +819,9 @@ int mtk_ppe_stop(struct mtk_ppe *ppe)
u32 val;
int i;
+ if (!ppe)
+ return 0;
+
for (i = 0; i < MTK_PPE_ENTRIES; i++)
ppe->foe_table[i].ib1 = FIELD_PREP(MTK_FOE_IB1_STATE,
MTK_FOE_STATE_INVALID);
--- a/drivers/net/ethernet/mediatek/mtk_ppe.h
+++ b/drivers/net/ethernet/mediatek/mtk_ppe.h
@@ -247,6 +247,7 @@ struct mtk_flow_entry {
};
u8 type;
s8 wed_index;
+ u8 ppe_index;
u16 hash;
union {
struct mtk_foe_entry data;
@@ -265,6 +266,7 @@ struct mtk_ppe {
struct device *dev;
void __iomem *base;
int version;
+ char dirname[5];
struct mtk_foe_entry *foe_table;
dma_addr_t foe_phys;
@@ -277,8 +279,9 @@ struct mtk_ppe {
void *acct_table;
};
-struct mtk_ppe *mtk_ppe_init(struct mtk_eth *eth, void __iomem *base, int version);
-int mtk_ppe_start(struct mtk_ppe *ppe);
+struct mtk_ppe *mtk_ppe_init(struct mtk_eth *eth, void __iomem *base,
+ int version, int index);
+void mtk_ppe_start(struct mtk_ppe *ppe);
int mtk_ppe_stop(struct mtk_ppe *ppe);
void __mtk_ppe_check_skb(struct mtk_ppe *ppe, struct sk_buff *skb, u16 hash);
@@ -317,6 +320,6 @@ int mtk_foe_entry_set_wdma(struct mtk_fo
int mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_flow_entry *entry);
void mtk_foe_entry_clear(struct mtk_ppe *ppe, struct mtk_flow_entry *entry);
int mtk_foe_entry_idle_time(struct mtk_ppe *ppe, struct mtk_flow_entry *entry);
-int mtk_ppe_debugfs_init(struct mtk_ppe *ppe);
+int mtk_ppe_debugfs_init(struct mtk_ppe *ppe, int index);
#endif
--- a/drivers/net/ethernet/mediatek/mtk_ppe_debugfs.c
+++ b/drivers/net/ethernet/mediatek/mtk_ppe_debugfs.c
@@ -187,7 +187,7 @@ mtk_ppe_debugfs_foe_open_bind(struct ino
inode->i_private);
}
-int mtk_ppe_debugfs_init(struct mtk_ppe *ppe)
+int mtk_ppe_debugfs_init(struct mtk_ppe *ppe, int index)
{
static const struct file_operations fops_all = {
.open = mtk_ppe_debugfs_foe_open_all,
@@ -195,17 +195,17 @@ int mtk_ppe_debugfs_init(struct mtk_ppe
.llseek = seq_lseek,
.release = single_release,
};
-
static const struct file_operations fops_bind = {
.open = mtk_ppe_debugfs_foe_open_bind,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
-
struct dentry *root;
- root = debugfs_create_dir("mtk_ppe", NULL);
+ snprintf(ppe->dirname, sizeof(ppe->dirname), "ppe%d", index);
+
+ root = debugfs_create_dir(ppe->dirname, NULL);
if (!root)
return -ENOMEM;
--- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
+++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
@@ -434,7 +434,7 @@ mtk_flow_offload_replace(struct mtk_eth
memcpy(&entry->data, &foe, sizeof(entry->data));
entry->wed_index = wed_index;
- err = mtk_foe_entry_commit(eth->ppe, entry);
+ err = mtk_foe_entry_commit(eth->ppe[entry->ppe_index], entry);
if (err < 0)
goto free;
@@ -446,7 +446,7 @@ mtk_flow_offload_replace(struct mtk_eth
return 0;
clear:
- mtk_foe_entry_clear(eth->ppe, entry);
+ mtk_foe_entry_clear(eth->ppe[entry->ppe_index], entry);
free:
kfree(entry);
if (wed_index >= 0)
@@ -464,7 +464,7 @@ mtk_flow_offload_destroy(struct mtk_eth
if (!entry)
return -ENOENT;
- mtk_foe_entry_clear(eth->ppe, entry);
+ mtk_foe_entry_clear(eth->ppe[entry->ppe_index], entry);
rhashtable_remove_fast(&eth->flow_table, &entry->node,
mtk_flow_ht_params);
if (entry->wed_index >= 0)
@@ -485,7 +485,7 @@ mtk_flow_offload_stats(struct mtk_eth *e
if (!entry)
return -ENOENT;
- idle = mtk_foe_entry_idle_time(eth->ppe, entry);
+ idle = mtk_foe_entry_idle_time(eth->ppe[entry->ppe_index], entry);
f->stats.lastused = jiffies - idle * HZ;
return 0;
@@ -537,7 +537,7 @@ mtk_eth_setup_tc_block(struct net_device
struct flow_block_cb *block_cb;
flow_setup_cb_t *cb;
- if (!eth->ppe || !eth->ppe->foe_table)
+ if (!eth->soc->offload_version)
return -EOPNOTSUPP;
if (f->binder_type != FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS)
@@ -589,8 +589,5 @@ int mtk_eth_setup_tc(struct net_device *
int mtk_eth_offload_init(struct mtk_eth *eth)
{
- if (!eth->ppe || !eth->ppe->foe_table)
- return 0;
-
return rhashtable_init(&eth->flow_table, &mtk_flow_ht_params);
}

80
target/linux/generic/pending-5.15/791-net-ethernet-mtk_eth_soc-move-wdma_base-definitions-.patch Normal file
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@ -0,0 +1,80 @@
From 0dcbe607cec32ccae23b02a641b8bd6191a328ae Mon Sep 17 00:00:00 2001
Message-Id: <0dcbe607cec32ccae23b02a641b8bd6191a328ae.1662243796.git.lorenzo@kernel.org>
In-Reply-To: <43a21841ce0175d29f23c34a65ceaaf9dd7eb8b7.1662243796.git.lorenzo@kernel.org>
References: <43a21841ce0175d29f23c34a65ceaaf9dd7eb8b7.1662243796.git.lorenzo@kernel.org>
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Tue, 23 Aug 2022 23:09:05 +0200
Subject: [PATCH net-next 2/4] net: ethernet: mtk_eth_soc: move wdma_base
definitions in mtk register map
This is a preliminary patch to introduce mt7986 wed support.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 16 ++++++++++------
drivers/net/ethernet/mediatek/mtk_eth_soc.h | 4 +---
2 files changed, 11 insertions(+), 9 deletions(-)
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -75,6 +75,10 @@ static const struct mtk_reg_map mtk_reg_
.gdm1_cnt = 0x2400,
.gdma_to_ppe0 = 0x4444,
.ppe_base = 0x0c00,
+ .wdma_base = {
+ [0] = 0x2800,
+ [1] = 0x2c00,
+ },
};
static const struct mtk_reg_map mt7628_reg_map = {
@@ -130,6 +134,10 @@ static const struct mtk_reg_map mt7986_r
.gdm1_cnt = 0x1c00,
.gdma_to_ppe0 = 0x3333,
.ppe_base = 0x2000,
+ .wdma_base = {
+ [0] = 0x4800,
+ [1] = 0x4c00,
+ },
};
/* strings used by ethtool */
@@ -3967,16 +3975,12 @@ static int mtk_probe(struct platform_dev
for (i = 0;; i++) {
struct device_node *np = of_parse_phandle(pdev->dev.of_node,
"mediatek,wed", i);
- static const u32 wdma_regs[] = {
- MTK_WDMA0_BASE,
- MTK_WDMA1_BASE
- };
void __iomem *wdma;
- if (!np || i >= ARRAY_SIZE(wdma_regs))
+ if (!np || i >= ARRAY_SIZE(eth->soc->reg_map->wdma_base))
break;
- wdma = eth->base + wdma_regs[i];
+ wdma = eth->base + eth->soc->reg_map->wdma_base[i];
mtk_wed_add_hw(np, eth, wdma, i);
}
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -268,9 +268,6 @@
#define TX_DMA_FPORT_MASK_V2 0xf
#define TX_DMA_SWC_V2 BIT(30)
-#define MTK_WDMA0_BASE 0x2800
-#define MTK_WDMA1_BASE 0x2c00
-
/* QDMA descriptor txd4 */
#define TX_DMA_CHKSUM (0x7 << 29)
#define TX_DMA_TSO BIT(28)
@@ -953,6 +950,7 @@ struct mtk_reg_map {
u32 gdm1_cnt;
u32 gdma_to_ppe0;
u32 ppe_base;
+ u32 wdma_base[2];
};
/* struct mtk_eth_data - This is the structure holding all differences

251
target/linux/generic/pending-5.15/792-net-ethernet-mtk_eth_soc-add-foe_entry_size-to-mtk_e.patch Normal file
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@ -0,0 +1,251 @@
From e3c27d869fccc1f2b8d0b4cde4763ab223874e8c Mon Sep 17 00:00:00 2001
Message-Id: <e3c27d869fccc1f2b8d0b4cde4763ab223874e8c.1662243796.git.lorenzo@kernel.org>
In-Reply-To: <43a21841ce0175d29f23c34a65ceaaf9dd7eb8b7.1662243796.git.lorenzo@kernel.org>
References: <43a21841ce0175d29f23c34a65ceaaf9dd7eb8b7.1662243796.git.lorenzo@kernel.org>
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Sun, 21 Aug 2022 17:51:17 +0200
Subject: [PATCH net-next 3/4] net: ethernet: mtk_eth_soc: add foe_entry_size
to mtk_eth_soc
Introduce foe_entry_size to mtk_eth_soc data structure since mt7986
relies on a bigger mtk_foe_entry data structure.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 3 +
drivers/net/ethernet/mediatek/mtk_eth_soc.h | 10 ++++
drivers/net/ethernet/mediatek/mtk_ppe.c | 55 +++++++++++--------
drivers/net/ethernet/mediatek/mtk_ppe.h | 2 +-
.../net/ethernet/mediatek/mtk_ppe_debugfs.c | 2 +-
5 files changed, 48 insertions(+), 24 deletions(-)
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -4167,6 +4167,7 @@ static const struct mtk_soc_data mt7621_
.required_pctl = false,
.offload_version = 2,
.hash_offset = 2,
+ .foe_entry_size = sizeof(struct mtk_foe_entry),
.txrx = {
.txd_size = sizeof(struct mtk_tx_dma),
.rxd_size = sizeof(struct mtk_rx_dma),
@@ -4186,6 +4187,7 @@ static const struct mtk_soc_data mt7622_
.required_pctl = false,
.offload_version = 2,
.hash_offset = 2,
+ .foe_entry_size = sizeof(struct mtk_foe_entry),
.txrx = {
.txd_size = sizeof(struct mtk_tx_dma),
.rxd_size = sizeof(struct mtk_rx_dma),
@@ -4204,6 +4206,7 @@ static const struct mtk_soc_data mt7623_
.required_pctl = true,
.offload_version = 2,
.hash_offset = 2,
+ .foe_entry_size = sizeof(struct mtk_foe_entry),
.txrx = {
.txd_size = sizeof(struct mtk_tx_dma),
.rxd_size = sizeof(struct mtk_rx_dma),
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -965,6 +965,7 @@ struct mtk_reg_map {
* @required_pctl A bool value to show whether the SoC requires
* the extra setup for those pins used by GMAC.
* @hash_offset Flow table hash offset.
+ * @foe_entry_size Foe table entry size.
* @txd_size Tx DMA descriptor size.
* @rxd_size Rx DMA descriptor size.
* @rx_irq_done_mask Rx irq done register mask.
@@ -980,6 +981,7 @@ struct mtk_soc_data {
bool required_pctl;
u8 offload_version;
u8 hash_offset;
+ u16 foe_entry_size;
netdev_features_t hw_features;
struct {
u32 txd_size;
@@ -1140,6 +1142,14 @@ struct mtk_mac {
/* the struct describing the SoC. these are declared in the soc_xyz.c files */
extern const struct of_device_id of_mtk_match[];
+static inline struct mtk_foe_entry *
+mtk_foe_get_entry(struct mtk_ppe *ppe, u16 hash)
+{
+ const struct mtk_soc_data *soc = ppe->eth->soc;
+
+ return ppe->foe_table + hash * soc->foe_entry_size;
+}
+
/* read the hardware status register */
void mtk_stats_update_mac(struct mtk_mac *mac);
--- a/drivers/net/ethernet/mediatek/mtk_ppe.c
+++ b/drivers/net/ethernet/mediatek/mtk_ppe.c
@@ -410,9 +410,10 @@ __mtk_foe_entry_clear(struct mtk_ppe *pp
hlist_del_init(&entry->list);
if (entry->hash != 0xffff) {
- ppe->foe_table[entry->hash].ib1 &= ~MTK_FOE_IB1_STATE;
- ppe->foe_table[entry->hash].ib1 |= FIELD_PREP(MTK_FOE_IB1_STATE,
- MTK_FOE_STATE_BIND);
+ struct mtk_foe_entry *hwe = mtk_foe_get_entry(ppe, entry->hash);
+
+ hwe->ib1 &= ~MTK_FOE_IB1_STATE;
+ hwe->ib1 |= FIELD_PREP(MTK_FOE_IB1_STATE, MTK_FOE_STATE_BIND);
dma_wmb();
}
entry->hash = 0xffff;
@@ -451,7 +452,7 @@ mtk_flow_entry_update_l2(struct mtk_ppe
int cur_idle;
u32 ib1;
- hwe = &ppe->foe_table[cur->hash];
+ hwe = mtk_foe_get_entry(ppe, cur->hash);
ib1 = READ_ONCE(hwe->ib1);
if (FIELD_GET(MTK_FOE_IB1_STATE, ib1) != MTK_FOE_STATE_BIND) {
@@ -473,8 +474,8 @@ mtk_flow_entry_update_l2(struct mtk_ppe
static void
mtk_flow_entry_update(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
{
+ struct mtk_foe_entry foe = {};
struct mtk_foe_entry *hwe;
- struct mtk_foe_entry foe;
spin_lock_bh(&ppe_lock);
@@ -486,8 +487,8 @@ mtk_flow_entry_update(struct mtk_ppe *pp
if (entry->hash == 0xffff)
goto out;
- hwe = &ppe->foe_table[entry->hash];
- memcpy(&foe, hwe, sizeof(foe));
+ hwe = mtk_foe_get_entry(ppe, entry->hash);
+ memcpy(&foe, hwe, ppe->eth->soc->foe_entry_size);
if (!mtk_flow_entry_match(entry, &foe)) {
entry->hash = 0xffff;
goto out;
@@ -511,8 +512,8 @@ __mtk_foe_entry_commit(struct mtk_ppe *p
entry->ib1 &= ~MTK_FOE_IB1_BIND_TIMESTAMP;
entry->ib1 |= FIELD_PREP(MTK_FOE_IB1_BIND_TIMESTAMP, timestamp);
- hwe = &ppe->foe_table[hash];
- memcpy(&hwe->data, &entry->data, sizeof(hwe->data));
+ hwe = mtk_foe_get_entry(ppe, hash);
+ memcpy(&hwe->data, &entry->data, ppe->eth->soc->foe_entry_size);
wmb();
hwe->ib1 = entry->ib1;
@@ -561,7 +562,7 @@ mtk_foe_entry_commit_subflow(struct mtk_
{
const struct mtk_soc_data *soc = ppe->eth->soc;
struct mtk_flow_entry *flow_info;
- struct mtk_foe_entry foe, *hwe;
+ struct mtk_foe_entry foe = {}, *hwe;
struct mtk_foe_mac_info *l2;
u32 ib1_mask = MTK_FOE_IB1_PACKET_TYPE | MTK_FOE_IB1_UDP;
int type;
@@ -578,8 +579,8 @@ mtk_foe_entry_commit_subflow(struct mtk_
&ppe->foe_flow[hash / soc->hash_offset]);
hlist_add_head(&flow_info->l2_data.list, &entry->l2_flows);
- hwe = &ppe->foe_table[hash];
- memcpy(&foe, hwe, sizeof(foe));
+ hwe = mtk_foe_get_entry(ppe, hash);
+ memcpy(&foe, hwe, soc->foe_entry_size);
foe.ib1 &= ib1_mask;
foe.ib1 |= entry->data.ib1 & ~ib1_mask;
@@ -601,7 +602,7 @@ void __mtk_ppe_check_skb(struct mtk_ppe
{
const struct mtk_soc_data *soc = ppe->eth->soc;
struct hlist_head *head = &ppe->foe_flow[hash / soc->hash_offset];
- struct mtk_foe_entry *hwe = &ppe->foe_table[hash];
+ struct mtk_foe_entry *hwe = mtk_foe_get_entry(ppe, hash);
struct mtk_flow_entry *entry;
struct mtk_foe_bridge key = {};
struct hlist_node *n;
@@ -686,9 +687,9 @@ struct mtk_ppe *mtk_ppe_init(struct mtk_
{
const struct mtk_soc_data *soc = eth->soc;
struct device *dev = eth->dev;
- struct mtk_foe_entry *foe;
struct mtk_ppe *ppe;
u32 foe_flow_size;
+ void *foe;
ppe = devm_kzalloc(dev, sizeof(*ppe), GFP_KERNEL);
if (!ppe)
@@ -704,7 +705,8 @@ struct mtk_ppe *mtk_ppe_init(struct mtk_
ppe->dev = dev;
ppe->version = version;
- foe = dmam_alloc_coherent(ppe->dev, MTK_PPE_ENTRIES * sizeof(*foe),
+ foe = dmam_alloc_coherent(ppe->dev,
+ MTK_PPE_ENTRIES * soc->foe_entry_size,
&ppe->foe_phys, GFP_KERNEL);
if (!foe)
return NULL;
@@ -727,15 +729,21 @@ static void mtk_ppe_init_foe_table(struc
static const u8 skip[] = { 12, 25, 38, 51, 76, 89, 102 };
int i, k;
- memset(ppe->foe_table, 0, MTK_PPE_ENTRIES * sizeof(*ppe->foe_table));
+ memset(ppe->foe_table, 0,
+ MTK_PPE_ENTRIES * ppe->eth->soc->foe_entry_size);
if (!IS_ENABLED(CONFIG_SOC_MT7621))
return;
/* skip all entries that cross the 1024 byte boundary */
- for (i = 0; i < MTK_PPE_ENTRIES; i += 128)
- for (k = 0; k < ARRAY_SIZE(skip); k++)
- ppe->foe_table[i + skip[k]].ib1 |= MTK_FOE_IB1_STATIC;
+ for (i = 0; i < MTK_PPE_ENTRIES; i += 128) {
+ for (k = 0; k < ARRAY_SIZE(skip); k++) {
+ struct mtk_foe_entry *hwe;
+
+ hwe = mtk_foe_get_entry(ppe, i + skip[k]);
+ hwe->ib1 |= MTK_FOE_IB1_STATIC;
+ }
+ }
}
void mtk_ppe_start(struct mtk_ppe *ppe)
@@ -822,9 +830,12 @@ int mtk_ppe_stop(struct mtk_ppe *ppe)
if (!ppe)
return 0;
- for (i = 0; i < MTK_PPE_ENTRIES; i++)
- ppe->foe_table[i].ib1 = FIELD_PREP(MTK_FOE_IB1_STATE,
- MTK_FOE_STATE_INVALID);
+ for (i = 0; i < MTK_PPE_ENTRIES; i++) {
+ struct mtk_foe_entry *hwe = mtk_foe_get_entry(ppe, i);
+
+ hwe->ib1 = FIELD_PREP(MTK_FOE_IB1_STATE,
+ MTK_FOE_STATE_INVALID);
+ }
mtk_ppe_cache_enable(ppe, false);
--- a/drivers/net/ethernet/mediatek/mtk_ppe.h
+++ b/drivers/net/ethernet/mediatek/mtk_ppe.h
@@ -268,7 +268,7 @@ struct mtk_ppe {
int version;
char dirname[5];
- struct mtk_foe_entry *foe_table;
+ void *foe_table;
dma_addr_t foe_phys;
u16 foe_check_time[MTK_PPE_ENTRIES];
--- a/drivers/net/ethernet/mediatek/mtk_ppe_debugfs.c
+++ b/drivers/net/ethernet/mediatek/mtk_ppe_debugfs.c
@@ -79,7 +79,7 @@ mtk_ppe_debugfs_foe_show(struct seq_file
int i;
for (i = 0; i < MTK_PPE_ENTRIES; i++) {
- struct mtk_foe_entry *entry = &ppe->foe_table[i];
+ struct mtk_foe_entry *entry = mtk_foe_get_entry(ppe, i);
struct mtk_foe_mac_info *l2;
struct mtk_flow_addr_info ai = {};
unsigned char h_source[ETH_ALEN];

27
target/linux/generic/pending-5.15/793-net-ethernet-mtk_eth_soc-fix-typo-in-__mtk_foe_entry.patch Normal file
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@ -0,0 +1,27 @@
From 12ff69304c83c679ca01ef3db963ab0db9de19fb Mon Sep 17 00:00:00 2001
Message-Id: <12ff69304c83c679ca01ef3db963ab0db9de19fb.1662332102.git.lorenzo@kernel.org>
In-Reply-To: <2a60545635c2705312299384f4e9fec2f2a3acd6.1662332102.git.lorenzo@kernel.org>
References: <2a60545635c2705312299384f4e9fec2f2a3acd6.1662332102.git.lorenzo@kernel.org>
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Mon, 5 Sep 2022 00:43:43 +0200
Subject: [PATCH net-next 2/6] net: ethernet: mtk_eth_soc: fix typo in
__mtk_foe_entry_clear
Set ib1 state to MTK_FOE_STATE_UNBIND in __mtk_foe_entry_clear routine.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
drivers/net/ethernet/mediatek/mtk_ppe.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/ethernet/mediatek/mtk_ppe.c
+++ b/drivers/net/ethernet/mediatek/mtk_ppe.c
@@ -413,7 +413,7 @@ __mtk_foe_entry_clear(struct mtk_ppe *pp
struct mtk_foe_entry *hwe = mtk_foe_get_entry(ppe, entry->hash);
hwe->ib1 &= ~MTK_FOE_IB1_STATE;
- hwe->ib1 |= FIELD_PREP(MTK_FOE_IB1_STATE, MTK_FOE_STATE_BIND);
+ hwe->ib1 |= FIELD_PREP(MTK_FOE_IB1_STATE, MTK_FOE_STATE_UNBIND);
dma_wmb();
}
entry->hash = 0xffff;

28
target/linux/generic/pending-5.15/794-net-ethernet-mtk_eth_soc-check-max-allowed-value-in-.patch Normal file
View File

@ -0,0 +1,28 @@
From 4253e6e2b795a18ab534adcd5c313d3fc4150975 Mon Sep 17 00:00:00 2001
Message-Id: <4253e6e2b795a18ab534adcd5c313d3fc4150975.1662332102.git.lorenzo@kernel.org>
In-Reply-To: <2a60545635c2705312299384f4e9fec2f2a3acd6.1662332102.git.lorenzo@kernel.org>
References: <2a60545635c2705312299384f4e9fec2f2a3acd6.1662332102.git.lorenzo@kernel.org>
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Mon, 5 Sep 2022 00:48:52 +0200
Subject: [PATCH net-next 3/6] net: ethernet: mtk_eth_soc: check max allowed
value in mtk_ppe_check_skb
Check theoretical OOB accesses in mtk_ppe_check_skb routine
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
drivers/net/ethernet/mediatek/mtk_ppe.h | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/net/ethernet/mediatek/mtk_ppe.h
+++ b/drivers/net/ethernet/mediatek/mtk_ppe.h
@@ -294,6 +294,9 @@ mtk_ppe_check_skb(struct mtk_ppe *ppe, s
if (!ppe)
return;
+ if (hash > MTK_PPE_HASH_MASK)
+ return;
+
now = (u16)jiffies;
diff = now - ppe->foe_check_time[hash];
if (diff < HZ / 10)

189
target/linux/generic/pending-5.15/795-net-ethernet-mtk_eth_wed-add-mtk_wed_configure_irq-a.patch Normal file
View File

@ -0,0 +1,189 @@
From e5ecb4f619197b93fa682d722452dc8412864cdb Mon Sep 17 00:00:00 2001
Message-Id: <e5ecb4f619197b93fa682d722452dc8412864cdb.1662886033.git.lorenzo@kernel.org>
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Fri, 26 Aug 2022 01:12:57 +0200
Subject: [PATCH net-next 1/5] net: ethernet: mtk_eth_wed: add
mtk_wed_configure_irq and mtk_wed_dma_{enable/disable}
Introduce mtk_wed_configure_irq, mtk_wed_dma_enable and mtk_wed_dma_disable
utility routines.
This is a preliminary patch to introduce mt7986 wed support.
Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com>
Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com>
Co-developed-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
drivers/net/ethernet/mediatek/mtk_wed.c | 87 +++++++++++++-------
drivers/net/ethernet/mediatek/mtk_wed_regs.h | 6 +-
2 files changed, 64 insertions(+), 29 deletions(-)
--- a/drivers/net/ethernet/mediatek/mtk_wed.c
+++ b/drivers/net/ethernet/mediatek/mtk_wed.c
@@ -237,9 +237,30 @@ mtk_wed_set_ext_int(struct mtk_wed_devic
}
static void
-mtk_wed_stop(struct mtk_wed_device *dev)
+mtk_wed_dma_disable(struct mtk_wed_device *dev)
{
+ wed_clr(dev, MTK_WED_WPDMA_GLO_CFG,
+ MTK_WED_WPDMA_GLO_CFG_TX_DRV_EN |
+ MTK_WED_WPDMA_GLO_CFG_RX_DRV_EN);
+
+ wed_clr(dev, MTK_WED_WDMA_GLO_CFG, MTK_WED_WDMA_GLO_CFG_RX_DRV_EN);
+
+ wed_clr(dev, MTK_WED_GLO_CFG,
+ MTK_WED_GLO_CFG_TX_DMA_EN |
+ MTK_WED_GLO_CFG_RX_DMA_EN);
+
regmap_write(dev->hw->mirror, dev->hw->index * 4, 0);
+ wdma_m32(dev, MTK_WDMA_GLO_CFG,
+ MTK_WDMA_GLO_CFG_TX_DMA_EN |
+ MTK_WDMA_GLO_CFG_RX_INFO1_PRERES |
+ MTK_WDMA_GLO_CFG_RX_INFO2_PRERES |
+ MTK_WDMA_GLO_CFG_RX_INFO3_PRERES, 0);
+}
+
+static void
+mtk_wed_stop(struct mtk_wed_device *dev)
+{
+ mtk_wed_dma_disable(dev);
mtk_wed_set_ext_int(dev, false);
wed_clr(dev, MTK_WED_CTRL,
@@ -252,15 +273,6 @@ mtk_wed_stop(struct mtk_wed_device *dev)
wdma_w32(dev, MTK_WDMA_INT_MASK, 0);
wdma_w32(dev, MTK_WDMA_INT_GRP2, 0);
wed_w32(dev, MTK_WED_WPDMA_INT_MASK, 0);
-
- wed_clr(dev, MTK_WED_GLO_CFG,
- MTK_WED_GLO_CFG_TX_DMA_EN |
- MTK_WED_GLO_CFG_RX_DMA_EN);
- wed_clr(dev, MTK_WED_WPDMA_GLO_CFG,
- MTK_WED_WPDMA_GLO_CFG_TX_DRV_EN |
- MTK_WED_WPDMA_GLO_CFG_RX_DRV_EN);
- wed_clr(dev, MTK_WED_WDMA_GLO_CFG,
- MTK_WED_WDMA_GLO_CFG_RX_DRV_EN);
}
static void
@@ -313,7 +325,10 @@ mtk_wed_hw_init_early(struct mtk_wed_dev
MTK_WED_WDMA_GLO_CFG_IDLE_DMAD_SUPPLY;
wed_m32(dev, MTK_WED_WDMA_GLO_CFG, mask, set);
- wdma_set(dev, MTK_WDMA_GLO_CFG, MTK_WDMA_GLO_CFG_RX_INFO_PRERES);
+ wdma_set(dev, MTK_WDMA_GLO_CFG,
+ MTK_WDMA_GLO_CFG_RX_INFO1_PRERES |
+ MTK_WDMA_GLO_CFG_RX_INFO2_PRERES |
+ MTK_WDMA_GLO_CFG_RX_INFO3_PRERES);
offset = dev->hw->index ? 0x04000400 : 0;
wed_w32(dev, MTK_WED_WDMA_OFFSET0, 0x2a042a20 + offset);
@@ -520,43 +535,38 @@ mtk_wed_wdma_ring_setup(struct mtk_wed_d
}
static void
-mtk_wed_start(struct mtk_wed_device *dev, u32 irq_mask)
+mtk_wed_configure_irq(struct mtk_wed_device *dev, u32 irq_mask)
{
- u32 wdma_mask;
- u32 val;
- int i;
-
- for (i = 0; i < ARRAY_SIZE(dev->tx_wdma); i++)
- if (!dev->tx_wdma[i].desc)
- mtk_wed_wdma_ring_setup(dev, i, 16);
-
- wdma_mask = FIELD_PREP(MTK_WDMA_INT_MASK_RX_DONE, GENMASK(1, 0));
-
- mtk_wed_hw_init(dev);
+ u32 wdma_mask = FIELD_PREP(MTK_WDMA_INT_MASK_RX_DONE, GENMASK(1, 0));
+ /* wed control cr set */
wed_set(dev, MTK_WED_CTRL,
MTK_WED_CTRL_WDMA_INT_AGENT_EN |
MTK_WED_CTRL_WPDMA_INT_AGENT_EN |
MTK_WED_CTRL_WED_TX_BM_EN |
MTK_WED_CTRL_WED_TX_FREE_AGENT_EN);
- wed_w32(dev, MTK_WED_PCIE_INT_TRIGGER, MTK_WED_PCIE_INT_TRIGGER_STATUS);
+ wed_w32(dev, MTK_WED_PCIE_INT_TRIGGER,
+ MTK_WED_PCIE_INT_TRIGGER_STATUS);
wed_w32(dev, MTK_WED_WPDMA_INT_TRIGGER,
MTK_WED_WPDMA_INT_TRIGGER_RX_DONE |
MTK_WED_WPDMA_INT_TRIGGER_TX_DONE);
- wed_set(dev, MTK_WED_WPDMA_INT_CTRL,
- MTK_WED_WPDMA_INT_CTRL_SUBRT_ADV);
-
+ /* initail wdma interrupt agent */
wed_w32(dev, MTK_WED_WDMA_INT_TRIGGER, wdma_mask);
wed_clr(dev, MTK_WED_WDMA_INT_CTRL, wdma_mask);
wdma_w32(dev, MTK_WDMA_INT_MASK, wdma_mask);
wdma_w32(dev, MTK_WDMA_INT_GRP2, wdma_mask);
-
wed_w32(dev, MTK_WED_WPDMA_INT_MASK, irq_mask);
wed_w32(dev, MTK_WED_INT_MASK, irq_mask);
+}
+
+static void
+mtk_wed_dma_enable(struct mtk_wed_device *dev)
+{
+ wed_set(dev, MTK_WED_WPDMA_INT_CTRL, MTK_WED_WPDMA_INT_CTRL_SUBRT_ADV);
wed_set(dev, MTK_WED_GLO_CFG,
MTK_WED_GLO_CFG_TX_DMA_EN |
@@ -567,6 +577,26 @@ mtk_wed_start(struct mtk_wed_device *dev
wed_set(dev, MTK_WED_WDMA_GLO_CFG,
MTK_WED_WDMA_GLO_CFG_RX_DRV_EN);
+ wdma_set(dev, MTK_WDMA_GLO_CFG,
+ MTK_WDMA_GLO_CFG_TX_DMA_EN |
+ MTK_WDMA_GLO_CFG_RX_INFO1_PRERES |
+ MTK_WDMA_GLO_CFG_RX_INFO2_PRERES |
+ MTK_WDMA_GLO_CFG_RX_INFO3_PRERES);
+}
+
+static void
+mtk_wed_start(struct mtk_wed_device *dev, u32 irq_mask)
+{
+ u32 val;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(dev->tx_wdma); i++)
+ if (!dev->tx_wdma[i].desc)
+ mtk_wed_wdma_ring_setup(dev, i, 16);
+
+ mtk_wed_hw_init(dev);
+ mtk_wed_configure_irq(dev, irq_mask);
+
mtk_wed_set_ext_int(dev, true);
val = dev->wlan.wpdma_phys |
MTK_PCIE_MIRROR_MAP_EN |
@@ -577,6 +607,7 @@ mtk_wed_start(struct mtk_wed_device *dev
val |= BIT(0);
regmap_write(dev->hw->mirror, dev->hw->index * 4, val);
+ mtk_wed_dma_enable(dev);
dev->running = true;
}
--- a/drivers/net/ethernet/mediatek/mtk_wed_regs.h
+++ b/drivers/net/ethernet/mediatek/mtk_wed_regs.h
@@ -224,7 +224,11 @@ struct mtk_wdma_desc {
#define MTK_WDMA_RING_RX(_n) (0x100 + (_n) * 0x10)
#define MTK_WDMA_GLO_CFG 0x204
-#define MTK_WDMA_GLO_CFG_RX_INFO_PRERES GENMASK(28, 26)
+#define MTK_WDMA_GLO_CFG_TX_DMA_EN BIT(0)
+#define MTK_WDMA_GLO_CFG_RX_DMA_EN BIT(2)
+#define MTK_WDMA_GLO_CFG_RX_INFO3_PRERES BIT(26)
+#define MTK_WDMA_GLO_CFG_RX_INFO2_PRERES BIT(27)
+#define MTK_WDMA_GLO_CFG_RX_INFO1_PRERES BIT(28)
#define MTK_WDMA_RESET_IDX 0x208
#define MTK_WDMA_RESET_IDX_TX GENMASK(3, 0)

942
target/linux/generic/pending-5.15/796-net-ethernet-mtk_eth_wed-add-wed-support-for-mt7986-.patch Normal file
View File

@ -0,0 +1,942 @@
From 463a71af080fbc77339bee2037fb1e081e3824f7 Mon Sep 17 00:00:00 2001
Message-Id: <463a71af080fbc77339bee2037fb1e081e3824f7.1662886034.git.lorenzo@kernel.org>
In-Reply-To: <e5ecb4f619197b93fa682d722452dc8412864cdb.1662886033.git.lorenzo@kernel.org>
References: <e5ecb4f619197b93fa682d722452dc8412864cdb.1662886033.git.lorenzo@kernel.org>
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Sat, 27 Aug 2022 16:15:14 +0200
Subject: [PATCH net-next 2/5] net: ethernet: mtk_eth_wed: add wed support for
mt7986 chipset
Introduce Wireless Etherne Dispatcher support on transmission side
for mt7986 chipset
Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com>
Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com>
Co-developed-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 34 +-
drivers/net/ethernet/mediatek/mtk_wed.c | 371 ++++++++++++++----
drivers/net/ethernet/mediatek/mtk_wed.h | 8 +-
.../net/ethernet/mediatek/mtk_wed_debugfs.c | 3 +
drivers/net/ethernet/mediatek/mtk_wed_regs.h | 81 +++-
include/linux/soc/mediatek/mtk_wed.h | 8 +
6 files changed, 408 insertions(+), 97 deletions(-)
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -3892,6 +3892,7 @@ void mtk_eth_set_dma_device(struct mtk_e
static int mtk_probe(struct platform_device *pdev)
{
+ struct resource *res = NULL;
struct device_node *mac_np;
struct mtk_eth *eth;
int err, i;
@@ -3972,16 +3973,31 @@ static int mtk_probe(struct platform_dev
}
}
- for (i = 0;; i++) {
- struct device_node *np = of_parse_phandle(pdev->dev.of_node,
- "mediatek,wed", i);
- void __iomem *wdma;
-
- if (!np || i >= ARRAY_SIZE(eth->soc->reg_map->wdma_base))
- break;
-
- wdma = eth->base + eth->soc->reg_map->wdma_base[i];
- mtk_wed_add_hw(np, eth, wdma, i);
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) {
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -EINVAL;
+ }
+
+ if (eth->soc->offload_version) {
+ for (i = 0;; i++) {
+ struct device_node *np;
+ phys_addr_t wdma_phy;
+ u32 wdma_base;
+
+ if (i >= ARRAY_SIZE(eth->soc->reg_map->wdma_base))
+ break;
+
+ np = of_parse_phandle(pdev->dev.of_node,
+ "mediatek,wed", i);
+ if (!np)
+ break;
+
+ wdma_base = eth->soc->reg_map->wdma_base[i];
+ wdma_phy = res ? res->start + wdma_base : 0;
+ mtk_wed_add_hw(np, eth, eth->base + wdma_base,
+ wdma_phy, i);
+ }
}
for (i = 0; i < 3; i++) {
--- a/drivers/net/ethernet/mediatek/mtk_wed.c
+++ b/drivers/net/ethernet/mediatek/mtk_wed.c
@@ -25,6 +25,11 @@
#define MTK_WED_TX_RING_SIZE 2048
#define MTK_WED_WDMA_RING_SIZE 1024
+#define MTK_WED_MAX_GROUP_SIZE 0x100
+#define MTK_WED_VLD_GROUP_SIZE 0x40
+#define MTK_WED_PER_GROUP_PKT 128
+
+#define MTK_WED_FBUF_SIZE 128
static struct mtk_wed_hw *hw_list[2];
static DEFINE_MUTEX(hw_lock);
@@ -150,10 +155,17 @@ mtk_wed_buffer_alloc(struct mtk_wed_devi
desc->buf0 = cpu_to_le32(buf_phys);
desc->buf1 = cpu_to_le32(buf_phys + txd_size);
- ctrl = FIELD_PREP(MTK_WDMA_DESC_CTRL_LEN0, txd_size) |
- FIELD_PREP(MTK_WDMA_DESC_CTRL_LEN1,
- MTK_WED_BUF_SIZE - txd_size) |
- MTK_WDMA_DESC_CTRL_LAST_SEG1;
+
+ if (dev->hw->version == 1)
+ ctrl = FIELD_PREP(MTK_WDMA_DESC_CTRL_LEN0, txd_size) |
+ FIELD_PREP(MTK_WDMA_DESC_CTRL_LEN1,
+ MTK_WED_BUF_SIZE - txd_size) |
+ MTK_WDMA_DESC_CTRL_LAST_SEG1;
+ else
+ ctrl = FIELD_PREP(MTK_WDMA_DESC_CTRL_LEN0, txd_size) |
+ FIELD_PREP(MTK_WDMA_DESC_CTRL_LEN1_V2,
+ MTK_WED_BUF_SIZE - txd_size) |
+ MTK_WDMA_DESC_CTRL_LAST_SEG0;
desc->ctrl = cpu_to_le32(ctrl);
desc->info = 0;
desc++;
@@ -209,7 +221,7 @@ mtk_wed_free_ring(struct mtk_wed_device
if (!ring->desc)
return;
- dma_free_coherent(dev->hw->dev, ring->size * sizeof(*ring->desc),
+ dma_free_coherent(dev->hw->dev, ring->size * ring->desc_size,
ring->desc, ring->desc_phys);
}
@@ -229,6 +241,14 @@ mtk_wed_set_ext_int(struct mtk_wed_devic
{
u32 mask = MTK_WED_EXT_INT_STATUS_ERROR_MASK;
+ if (dev->hw->version == 1)
+ mask |= MTK_WED_EXT_INT_STATUS_TX_DRV_R_RESP_ERR;
+ else
+ mask |= MTK_WED_EXT_INT_STATUS_RX_FBUF_LO_TH |
+ MTK_WED_EXT_INT_STATUS_RX_FBUF_HI_TH |
+ MTK_WED_EXT_INT_STATUS_RX_DRV_COHERENT |
+ MTK_WED_EXT_INT_STATUS_TX_DMA_W_RESP_ERR;
+
if (!dev->hw->num_flows)
mask &= ~MTK_WED_EXT_INT_STATUS_TKID_WO_PYLD;
@@ -237,6 +257,20 @@ mtk_wed_set_ext_int(struct mtk_wed_devic
}
static void
+mtk_wed_set_512_support(struct mtk_wed_device *dev, bool enable)
+{
+ if (enable) {
+ wed_w32(dev, MTK_WED_TXDP_CTRL, MTK_WED_TXDP_DW9_OVERWR);
+ wed_w32(dev, MTK_WED_TXP_DW1,
+ FIELD_PREP(MTK_WED_WPDMA_WRITE_TXP, 0x0103));
+ } else {
+ wed_w32(dev, MTK_WED_TXP_DW1,
+ FIELD_PREP(MTK_WED_WPDMA_WRITE_TXP, 0x0100));
+ wed_clr(dev, MTK_WED_TXDP_CTRL, MTK_WED_TXDP_DW9_OVERWR);
+ }
+}
+
+static void
mtk_wed_dma_disable(struct mtk_wed_device *dev)
{
wed_clr(dev, MTK_WED_WPDMA_GLO_CFG,
@@ -249,12 +283,22 @@ mtk_wed_dma_disable(struct mtk_wed_devic
MTK_WED_GLO_CFG_TX_DMA_EN |
MTK_WED_GLO_CFG_RX_DMA_EN);
- regmap_write(dev->hw->mirror, dev->hw->index * 4, 0);
wdma_m32(dev, MTK_WDMA_GLO_CFG,
MTK_WDMA_GLO_CFG_TX_DMA_EN |
MTK_WDMA_GLO_CFG_RX_INFO1_PRERES |
- MTK_WDMA_GLO_CFG_RX_INFO2_PRERES |
- MTK_WDMA_GLO_CFG_RX_INFO3_PRERES, 0);
+ MTK_WDMA_GLO_CFG_RX_INFO2_PRERES, 0);
+
+ if (dev->hw->version == 1) {
+ regmap_write(dev->hw->mirror, dev->hw->index * 4, 0);
+ wdma_m32(dev, MTK_WDMA_GLO_CFG,
+ MTK_WDMA_GLO_CFG_RX_INFO3_PRERES, 0);
+ } else {
+ wed_clr(dev, MTK_WED_WPDMA_GLO_CFG,
+ MTK_WED_WPDMA_GLO_CFG_RX_DRV_R0_PKT_PROC |
+ MTK_WED_WPDMA_GLO_CFG_RX_DRV_R0_CRX_SYNC);
+
+ mtk_wed_set_512_support(dev, false);
+ }
}
static void
@@ -293,7 +337,7 @@ mtk_wed_detach(struct mtk_wed_device *de
mtk_wed_free_buffer(dev);
mtk_wed_free_tx_rings(dev);
- if (of_dma_is_coherent(wlan_node))
+ if (of_dma_is_coherent(wlan_node) && hw->hifsys)
regmap_update_bits(hw->hifsys, HIFSYS_DMA_AG_MAP,
BIT(hw->index), BIT(hw->index));
@@ -308,14 +352,69 @@ mtk_wed_detach(struct mtk_wed_device *de
mutex_unlock(&hw_lock);
}
+#define PCIE_BASE_ADDR0 0x11280000
+static void
+mtk_wed_bus_init(struct mtk_wed_device *dev)
+{
+ struct device_node *np = dev->hw->eth->dev->of_node;
+ struct regmap *regs;
+ u32 val;
+
+ regs = syscon_regmap_lookup_by_phandle(np, "mediatek,wed-pcie");
+ if (IS_ERR(regs))
+ return;
+
+ regmap_update_bits(regs, 0, BIT(0), BIT(0));
+
+ wed_w32(dev, MTK_WED_PCIE_INT_CTRL,
+ FIELD_PREP(MTK_WED_PCIE_INT_CTRL_POLL_EN, 2));
+
+ /* pcie interrupt control: pola/source selection */
+ wed_set(dev, MTK_WED_PCIE_INT_CTRL,
+ MTK_WED_PCIE_INT_CTRL_MSK_EN_POLA |
+ FIELD_PREP(MTK_WED_PCIE_INT_CTRL_SRC_SEL, 1));
+ wed_r32(dev, MTK_WED_PCIE_INT_CTRL);
+
+ val = wed_r32(dev, MTK_WED_PCIE_CFG_INTM);
+ val = wed_r32(dev, MTK_WED_PCIE_CFG_BASE);
+ wed_w32(dev, MTK_WED_PCIE_CFG_INTM, PCIE_BASE_ADDR0 | 0x180);
+ wed_w32(dev, MTK_WED_PCIE_CFG_BASE, PCIE_BASE_ADDR0 | 0x184);
+
+ val = wed_r32(dev, MTK_WED_PCIE_CFG_INTM);
+ val = wed_r32(dev, MTK_WED_PCIE_CFG_BASE);
+
+ /* pcie interrupt status trigger register */
+ wed_w32(dev, MTK_WED_PCIE_INT_TRIGGER, BIT(24));
+ wed_r32(dev, MTK_WED_PCIE_INT_TRIGGER);
+
+ /* pola setting */
+ val = wed_r32(dev, MTK_WED_PCIE_INT_CTRL);
+ wed_set(dev, MTK_WED_PCIE_INT_CTRL, MTK_WED_PCIE_INT_CTRL_MSK_EN_POLA);
+}
+
+static void
+mtk_wed_set_wpdma(struct mtk_wed_device *dev)
+{
+ if (dev->hw->version == 1) {
+ wed_w32(dev, MTK_WED_WPDMA_CFG_BASE, dev->wlan.wpdma_phys);
+ } else {
+ mtk_wed_bus_init(dev);
+
+ wed_w32(dev, MTK_WED_WPDMA_CFG_BASE, dev->wlan.wpdma_int);
+ wed_w32(dev, MTK_WED_WPDMA_CFG_INT_MASK, dev->wlan.wpdma_mask);
+ wed_w32(dev, MTK_WED_WPDMA_CFG_TX, dev->wlan.wpdma_tx);
+ wed_w32(dev, MTK_WED_WPDMA_CFG_TX_FREE, dev->wlan.wpdma_txfree);
+ }
+}
+
static void
mtk_wed_hw_init_early(struct mtk_wed_device *dev)
{
u32 mask, set;
- u32 offset;
mtk_wed_stop(dev);
mtk_wed_reset(dev, MTK_WED_RESET_WED);
+ mtk_wed_set_wpdma(dev);
mask = MTK_WED_WDMA_GLO_CFG_BT_SIZE |
MTK_WED_WDMA_GLO_CFG_DYNAMIC_DMAD_RECYCLE |
@@ -325,17 +424,33 @@ mtk_wed_hw_init_early(struct mtk_wed_dev
MTK_WED_WDMA_GLO_CFG_IDLE_DMAD_SUPPLY;
wed_m32(dev, MTK_WED_WDMA_GLO_CFG, mask, set);
- wdma_set(dev, MTK_WDMA_GLO_CFG,
- MTK_WDMA_GLO_CFG_RX_INFO1_PRERES |
- MTK_WDMA_GLO_CFG_RX_INFO2_PRERES |
- MTK_WDMA_GLO_CFG_RX_INFO3_PRERES);
-
- offset = dev->hw->index ? 0x04000400 : 0;
- wed_w32(dev, MTK_WED_WDMA_OFFSET0, 0x2a042a20 + offset);
- wed_w32(dev, MTK_WED_WDMA_OFFSET1, 0x29002800 + offset);
+ if (dev->hw->version == 1) {
+ u32 offset = dev->hw->index ? 0x04000400 : 0;
- wed_w32(dev, MTK_WED_PCIE_CFG_BASE, MTK_PCIE_BASE(dev->hw->index));
- wed_w32(dev, MTK_WED_WPDMA_CFG_BASE, dev->wlan.wpdma_phys);
+ wdma_set(dev, MTK_WDMA_GLO_CFG,
+ MTK_WDMA_GLO_CFG_RX_INFO1_PRERES |
+ MTK_WDMA_GLO_CFG_RX_INFO2_PRERES |
+ MTK_WDMA_GLO_CFG_RX_INFO3_PRERES);
+
+ wed_w32(dev, MTK_WED_WDMA_OFFSET0, 0x2a042a20 + offset);
+ wed_w32(dev, MTK_WED_WDMA_OFFSET1, 0x29002800 + offset);
+ wed_w32(dev, MTK_WED_PCIE_CFG_BASE,
+ MTK_PCIE_BASE(dev->hw->index));
+ } else {
+ wed_w32(dev, MTK_WED_WDMA_CFG_BASE, dev->hw->wdma_phy);
+ wed_set(dev, MTK_WED_CTRL, MTK_WED_CTRL_ETH_DMAD_FMT);
+ wed_w32(dev, MTK_WED_WDMA_OFFSET0,
+ FIELD_PREP(MTK_WED_WDMA_OFST0_GLO_INTS,
+ MTK_WDMA_INT_STATUS) |
+ FIELD_PREP(MTK_WED_WDMA_OFST0_GLO_CFG,
+ MTK_WDMA_GLO_CFG));
+
+ wed_w32(dev, MTK_WED_WDMA_OFFSET1,
+ FIELD_PREP(MTK_WED_WDMA_OFST1_TX_CTRL,
+ MTK_WDMA_RING_TX(0)) |
+ FIELD_PREP(MTK_WED_WDMA_OFST1_RX_CTRL,
+ MTK_WDMA_RING_RX(0)));
+ }
}
static void
@@ -355,37 +470,65 @@ mtk_wed_hw_init(struct mtk_wed_device *d
wed_w32(dev, MTK_WED_TX_BM_BASE, dev->buf_ring.desc_phys);
- wed_w32(dev, MTK_WED_TX_BM_TKID,
- FIELD_PREP(MTK_WED_TX_BM_TKID_START,
- dev->wlan.token_start) |
- FIELD_PREP(MTK_WED_TX_BM_TKID_END,
- dev->wlan.token_start + dev->wlan.nbuf - 1));
-
wed_w32(dev, MTK_WED_TX_BM_BUF_LEN, MTK_WED_PKT_SIZE);
- wed_w32(dev, MTK_WED_TX_BM_DYN_THR,
- FIELD_PREP(MTK_WED_TX_BM_DYN_THR_LO, 1) |
- MTK_WED_TX_BM_DYN_THR_HI);
+ if (dev->hw->version == 1) {
+ wed_w32(dev, MTK_WED_TX_BM_TKID,
+ FIELD_PREP(MTK_WED_TX_BM_TKID_START,
+ dev->wlan.token_start) |
+ FIELD_PREP(MTK_WED_TX_BM_TKID_END,
+ dev->wlan.token_start +
+ dev->wlan.nbuf - 1));
+ wed_w32(dev, MTK_WED_TX_BM_DYN_THR,
+ FIELD_PREP(MTK_WED_TX_BM_DYN_THR_LO, 1) |
+ MTK_WED_TX_BM_DYN_THR_HI);
+ } else {
+ wed_w32(dev, MTK_WED_TX_BM_TKID_V2,
+ FIELD_PREP(MTK_WED_TX_BM_TKID_START,
+ dev->wlan.token_start) |
+ FIELD_PREP(MTK_WED_TX_BM_TKID_END,
+ dev->wlan.token_start +
+ dev->wlan.nbuf - 1));
+ wed_w32(dev, MTK_WED_TX_BM_DYN_THR,
+ FIELD_PREP(MTK_WED_TX_BM_DYN_THR_LO_V2, 0) |
+ MTK_WED_TX_BM_DYN_THR_HI_V2);
+ wed_w32(dev, MTK_WED_TX_TKID_CTRL,
+ MTK_WED_TX_TKID_CTRL_PAUSE |
+ FIELD_PREP(MTK_WED_TX_TKID_CTRL_VLD_GRP_NUM,
+ dev->buf_ring.size / 128) |
+ FIELD_PREP(MTK_WED_TX_TKID_CTRL_RSV_GRP_NUM,
+ dev->buf_ring.size / 128));
+ wed_w32(dev, MTK_WED_TX_TKID_DYN_THR,
+ FIELD_PREP(MTK_WED_TX_TKID_DYN_THR_LO, 0) |
+ MTK_WED_TX_TKID_DYN_THR_HI);
+ }
mtk_wed_reset(dev, MTK_WED_RESET_TX_BM);
- wed_set(dev, MTK_WED_CTRL,
- MTK_WED_CTRL_WED_TX_BM_EN |
- MTK_WED_CTRL_WED_TX_FREE_AGENT_EN);
+ if (dev->hw->version == 1)
+ wed_set(dev, MTK_WED_CTRL,
+ MTK_WED_CTRL_WED_TX_BM_EN |
+ MTK_WED_CTRL_WED_TX_FREE_AGENT_EN);
+ else
+ wed_clr(dev, MTK_WED_TX_TKID_CTRL, MTK_WED_TX_TKID_CTRL_PAUSE);
wed_clr(dev, MTK_WED_TX_BM_CTRL, MTK_WED_TX_BM_CTRL_PAUSE);
}
static void
-mtk_wed_ring_reset(struct mtk_wdma_desc *desc, int size)
+mtk_wed_ring_reset(struct mtk_wed_ring *ring, int size)
{
+ void *head = (void *)ring->desc;
int i;
for (i = 0; i < size; i++) {
- desc[i].buf0 = 0;
- desc[i].ctrl = cpu_to_le32(MTK_WDMA_DESC_CTRL_DMA_DONE);
- desc[i].buf1 = 0;
- desc[i].info = 0;
+ struct mtk_wdma_desc *desc;
+
+ desc = (struct mtk_wdma_desc *)(head + i * ring->desc_size);
+ desc->buf0 = 0;
+ desc->ctrl = cpu_to_le32(MTK_WDMA_DESC_CTRL_DMA_DONE);
+ desc->buf1 = 0;
+ desc->info = 0;
}
}
@@ -436,12 +579,10 @@ mtk_wed_reset_dma(struct mtk_wed_device
int i;
for (i = 0; i < ARRAY_SIZE(dev->tx_ring); i++) {
- struct mtk_wdma_desc *desc = dev->tx_ring[i].desc;
-
- if (!desc)
+ if (!dev->tx_ring[i].desc)
continue;
- mtk_wed_ring_reset(desc, MTK_WED_TX_RING_SIZE);
+ mtk_wed_ring_reset(&dev->tx_ring[i], MTK_WED_TX_RING_SIZE);
}
if (mtk_wed_poll_busy(dev))
@@ -498,16 +639,16 @@ mtk_wed_reset_dma(struct mtk_wed_device
static int
mtk_wed_ring_alloc(struct mtk_wed_device *dev, struct mtk_wed_ring *ring,
- int size)
+ int size, u32 desc_size)
{
- ring->desc = dma_alloc_coherent(dev->hw->dev,
- size * sizeof(*ring->desc),
+ ring->desc = dma_alloc_coherent(dev->hw->dev, size * desc_size,
&ring->desc_phys, GFP_KERNEL);
if (!ring->desc)
return -ENOMEM;
+ ring->desc_size = desc_size;
ring->size = size;
- mtk_wed_ring_reset(ring->desc, size);
+ mtk_wed_ring_reset(ring, size);
return 0;
}
@@ -515,9 +656,10 @@ mtk_wed_ring_alloc(struct mtk_wed_device
static int
mtk_wed_wdma_ring_setup(struct mtk_wed_device *dev, int idx, int size)
{
+ u32 desc_size = sizeof(struct mtk_wdma_desc) * dev->hw->version;
struct mtk_wed_ring *wdma = &dev->tx_wdma[idx];
- if (mtk_wed_ring_alloc(dev, wdma, MTK_WED_WDMA_RING_SIZE))
+ if (mtk_wed_ring_alloc(dev, wdma, MTK_WED_WDMA_RING_SIZE, desc_size))
return -ENOMEM;
wdma_w32(dev, MTK_WDMA_RING_RX(idx) + MTK_WED_RING_OFS_BASE,
@@ -546,16 +688,41 @@ mtk_wed_configure_irq(struct mtk_wed_dev
MTK_WED_CTRL_WED_TX_BM_EN |
MTK_WED_CTRL_WED_TX_FREE_AGENT_EN);
- wed_w32(dev, MTK_WED_PCIE_INT_TRIGGER,
- MTK_WED_PCIE_INT_TRIGGER_STATUS);
+ if (dev->hw->version == 1) {
+ wed_w32(dev, MTK_WED_PCIE_INT_TRIGGER,
+ MTK_WED_PCIE_INT_TRIGGER_STATUS);
+
+ wed_w32(dev, MTK_WED_WPDMA_INT_TRIGGER,
+ MTK_WED_WPDMA_INT_TRIGGER_RX_DONE |
+ MTK_WED_WPDMA_INT_TRIGGER_TX_DONE);
- wed_w32(dev, MTK_WED_WPDMA_INT_TRIGGER,
- MTK_WED_WPDMA_INT_TRIGGER_RX_DONE |
- MTK_WED_WPDMA_INT_TRIGGER_TX_DONE);
+ wed_clr(dev, MTK_WED_WDMA_INT_CTRL, wdma_mask);
+ } else {
+ /* initail tx interrupt trigger */
+ wed_w32(dev, MTK_WED_WPDMA_INT_CTRL_TX,
+ MTK_WED_WPDMA_INT_CTRL_TX0_DONE_EN |
+ MTK_WED_WPDMA_INT_CTRL_TX0_DONE_CLR |
+ MTK_WED_WPDMA_INT_CTRL_TX1_DONE_EN |
+ MTK_WED_WPDMA_INT_CTRL_TX1_DONE_CLR |
+ FIELD_PREP(MTK_WED_WPDMA_INT_CTRL_TX0_DONE_TRIG,
+ dev->wlan.tx_tbit[0]) |
+ FIELD_PREP(MTK_WED_WPDMA_INT_CTRL_TX1_DONE_TRIG,
+ dev->wlan.tx_tbit[1]));
+
+ /* initail txfree interrupt trigger */
+ wed_w32(dev, MTK_WED_WPDMA_INT_CTRL_TX_FREE,
+ MTK_WED_WPDMA_INT_CTRL_TX_FREE_DONE_EN |
+ MTK_WED_WPDMA_INT_CTRL_TX_FREE_DONE_CLR |
+ FIELD_PREP(MTK_WED_WPDMA_INT_CTRL_TX_FREE_DONE_TRIG,
+ dev->wlan.txfree_tbit));
+
+ wed_w32(dev, MTK_WED_WDMA_INT_CLR, wdma_mask);
+ wed_set(dev, MTK_WED_WDMA_INT_CTRL,
+ FIELD_PREP(MTK_WED_WDMA_INT_CTRL_POLL_SRC_SEL,
+ dev->wdma_idx));
+ }
- /* initail wdma interrupt agent */
wed_w32(dev, MTK_WED_WDMA_INT_TRIGGER, wdma_mask);
- wed_clr(dev, MTK_WED_WDMA_INT_CTRL, wdma_mask);
wdma_w32(dev, MTK_WDMA_INT_MASK, wdma_mask);
wdma_w32(dev, MTK_WDMA_INT_GRP2, wdma_mask);
@@ -580,14 +747,28 @@ mtk_wed_dma_enable(struct mtk_wed_device
wdma_set(dev, MTK_WDMA_GLO_CFG,
MTK_WDMA_GLO_CFG_TX_DMA_EN |
MTK_WDMA_GLO_CFG_RX_INFO1_PRERES |
- MTK_WDMA_GLO_CFG_RX_INFO2_PRERES |
- MTK_WDMA_GLO_CFG_RX_INFO3_PRERES);
+ MTK_WDMA_GLO_CFG_RX_INFO2_PRERES);
+
+ if (dev->hw->version == 1) {
+ wdma_set(dev, MTK_WDMA_GLO_CFG,
+ MTK_WDMA_GLO_CFG_RX_INFO3_PRERES);
+ } else {
+ wed_set(dev, MTK_WED_WPDMA_CTRL,
+ MTK_WED_WPDMA_CTRL_SDL1_FIXED);
+
+ wed_set(dev, MTK_WED_WPDMA_GLO_CFG,
+ MTK_WED_WPDMA_GLO_CFG_RX_DRV_R0_PKT_PROC |
+ MTK_WED_WPDMA_GLO_CFG_RX_DRV_R0_CRX_SYNC);
+
+ wed_clr(dev, MTK_WED_WPDMA_GLO_CFG,
+ MTK_WED_WPDMA_GLO_CFG_TX_TKID_KEEP |
+ MTK_WED_WPDMA_GLO_CFG_TX_DMAD_DW3_PREV);
+ }
}
static void
mtk_wed_start(struct mtk_wed_device *dev, u32 irq_mask)
{
- u32 val;
int i;
for (i = 0; i < ARRAY_SIZE(dev->tx_wdma); i++)
@@ -598,14 +779,17 @@ mtk_wed_start(struct mtk_wed_device *dev
mtk_wed_configure_irq(dev, irq_mask);
mtk_wed_set_ext_int(dev, true);
- val = dev->wlan.wpdma_phys |
- MTK_PCIE_MIRROR_MAP_EN |
- FIELD_PREP(MTK_PCIE_MIRROR_MAP_WED_ID, dev->hw->index);
-
- if (dev->hw->index)
- val |= BIT(1);
- val |= BIT(0);
- regmap_write(dev->hw->mirror, dev->hw->index * 4, val);
+
+ if (dev->hw->version == 1) {
+ u32 val = dev->wlan.wpdma_phys | MTK_PCIE_MIRROR_MAP_EN |
+ FIELD_PREP(MTK_PCIE_MIRROR_MAP_WED_ID,
+ dev->hw->index);
+
+ val |= BIT(0) | (BIT(1) * !!dev->hw->index);
+ regmap_write(dev->hw->mirror, dev->hw->index * 4, val);
+ } else {
+ mtk_wed_set_512_support(dev, true);
+ }
mtk_wed_dma_enable(dev);
dev->running = true;
@@ -639,7 +823,9 @@ mtk_wed_attach(struct mtk_wed_device *de
goto out;
}
- dev_info(&dev->wlan.pci_dev->dev, "attaching wed device %d\n", hw->index);
+ dev_info(&dev->wlan.pci_dev->dev,
+ "attaching wed device %d version %d\n",
+ hw->index, hw->version);
dev->hw = hw;
dev->dev = hw->dev;
@@ -657,7 +843,9 @@ mtk_wed_attach(struct mtk_wed_device *de
}
mtk_wed_hw_init_early(dev);
- regmap_update_bits(hw->hifsys, HIFSYS_DMA_AG_MAP, BIT(hw->index), 0);
+ if (hw->hifsys)
+ regmap_update_bits(hw->hifsys, HIFSYS_DMA_AG_MAP,
+ BIT(hw->index), 0);
out:
mutex_unlock(&hw_lock);
@@ -684,7 +872,8 @@ mtk_wed_tx_ring_setup(struct mtk_wed_dev
BUG_ON(idx >= ARRAY_SIZE(dev->tx_ring));
- if (mtk_wed_ring_alloc(dev, ring, MTK_WED_TX_RING_SIZE))
+ if (mtk_wed_ring_alloc(dev, ring, MTK_WED_TX_RING_SIZE,
+ sizeof(*ring->desc)))
return -ENOMEM;
if (mtk_wed_wdma_ring_setup(dev, idx, MTK_WED_WDMA_RING_SIZE))
@@ -711,21 +900,21 @@ static int
mtk_wed_txfree_ring_setup(struct mtk_wed_device *dev, void __iomem *regs)
{
struct mtk_wed_ring *ring = &dev->txfree_ring;
- int i;
+ int i, index = dev->hw->version == 1;
/*
* For txfree event handling, the same DMA ring is shared between WED
* and WLAN. The WLAN driver accesses the ring index registers through
* WED
*/
- ring->reg_base = MTK_WED_RING_RX(1);
+ ring->reg_base = MTK_WED_RING_RX(index);
ring->wpdma = regs;
for (i = 0; i < 12; i += 4) {
u32 val = readl(regs + i);
- wed_w32(dev, MTK_WED_RING_RX(1) + i, val);
- wed_w32(dev, MTK_WED_WPDMA_RING_RX(1) + i, val);
+ wed_w32(dev, MTK_WED_RING_RX(index) + i, val);
+ wed_w32(dev, MTK_WED_WPDMA_RING_RX(index) + i, val);
}
return 0;
@@ -734,11 +923,19 @@ mtk_wed_txfree_ring_setup(struct mtk_wed
static u32
mtk_wed_irq_get(struct mtk_wed_device *dev, u32 mask)
{
- u32 val;
+ u32 val, ext_mask = MTK_WED_EXT_INT_STATUS_ERROR_MASK;
+
+ if (dev->hw->version == 1)
+ ext_mask |= MTK_WED_EXT_INT_STATUS_TX_DRV_R_RESP_ERR;
+ else
+ ext_mask |= MTK_WED_EXT_INT_STATUS_RX_FBUF_LO_TH |
+ MTK_WED_EXT_INT_STATUS_RX_FBUF_HI_TH |
+ MTK_WED_EXT_INT_STATUS_RX_DRV_COHERENT |
+ MTK_WED_EXT_INT_STATUS_TX_DMA_W_RESP_ERR;
val = wed_r32(dev, MTK_WED_EXT_INT_STATUS);
wed_w32(dev, MTK_WED_EXT_INT_STATUS, val);
- val &= MTK_WED_EXT_INT_STATUS_ERROR_MASK;
+ val &= ext_mask;
if (!dev->hw->num_flows)
val &= ~MTK_WED_EXT_INT_STATUS_TKID_WO_PYLD;
if (val && net_ratelimit())
@@ -813,7 +1010,8 @@ out:
}
void mtk_wed_add_hw(struct device_node *np, struct mtk_eth *eth,
- void __iomem *wdma, int index)
+ void __iomem *wdma, phys_addr_t wdma_phy,
+ int index)
{
static const struct mtk_wed_ops wed_ops = {
.attach = mtk_wed_attach,
@@ -860,26 +1058,33 @@ void mtk_wed_add_hw(struct device_node *
hw = kzalloc(sizeof(*hw), GFP_KERNEL);
if (!hw)
goto unlock;
+
hw->node = np;
hw->regs = regs;
hw->eth = eth;
hw->dev = &pdev->dev;
+ hw->wdma_phy = wdma_phy;
hw->wdma = wdma;
hw->index = index;
hw->irq = irq;
- hw->mirror = syscon_regmap_lookup_by_phandle(eth_np,
- "mediatek,pcie-mirror");
- hw->hifsys = syscon_regmap_lookup_by_phandle(eth_np,
- "mediatek,hifsys");
- if (IS_ERR(hw->mirror) || IS_ERR(hw->hifsys)) {
- kfree(hw);
- goto unlock;
- }
+ hw->version = MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2) ? 2 : 1;
- if (!index) {
- regmap_write(hw->mirror, 0, 0);
- regmap_write(hw->mirror, 4, 0);
+ if (hw->version == 1) {
+ hw->mirror = syscon_regmap_lookup_by_phandle(eth_np,
+ "mediatek,pcie-mirror");
+ hw->hifsys = syscon_regmap_lookup_by_phandle(eth_np,
+ "mediatek,hifsys");
+ if (IS_ERR(hw->mirror) || IS_ERR(hw->hifsys)) {
+ kfree(hw);
+ goto unlock;
+ }
+
+ if (!index) {
+ regmap_write(hw->mirror, 0, 0);
+ regmap_write(hw->mirror, 4, 0);
+ }
}
+
mtk_wed_hw_add_debugfs(hw);
hw_list[index] = hw;
--- a/drivers/net/ethernet/mediatek/mtk_wed.h
+++ b/drivers/net/ethernet/mediatek/mtk_wed.h
@@ -18,11 +18,13 @@ struct mtk_wed_hw {
struct regmap *hifsys;
struct device *dev;
void __iomem *wdma;
+ phys_addr_t wdma_phy;
struct regmap *mirror;
struct dentry *debugfs_dir;
struct mtk_wed_device *wed_dev;
u32 debugfs_reg;
u32 num_flows;
+ u8 version;
char dirname[5];
int irq;
int index;
@@ -101,14 +103,16 @@ wpdma_txfree_w32(struct mtk_wed_device *
}
void mtk_wed_add_hw(struct device_node *np, struct mtk_eth *eth,
- void __iomem *wdma, int index);
+ void __iomem *wdma, phys_addr_t wdma_phy,
+ int index);
void mtk_wed_exit(void);
int mtk_wed_flow_add(int index);
void mtk_wed_flow_remove(int index);
#else
static inline void
mtk_wed_add_hw(struct device_node *np, struct mtk_eth *eth,
- void __iomem *wdma, int index)
+ void __iomem *wdma, phys_addr_t wdma_phy,
+ int index)
{
}
static inline void
--- a/drivers/net/ethernet/mediatek/mtk_wed_debugfs.c
+++ b/drivers/net/ethernet/mediatek/mtk_wed_debugfs.c
@@ -116,6 +116,9 @@ wed_txinfo_show(struct seq_file *s, void
DUMP_WDMA(WDMA_GLO_CFG),
DUMP_WDMA_RING(WDMA_RING_RX(0)),
DUMP_WDMA_RING(WDMA_RING_RX(1)),
+
+ DUMP_STR("TX FREE"),
+ DUMP_WED(WED_RX_MIB(0)),
};
struct mtk_wed_hw *hw = s->private;
struct mtk_wed_device *dev = hw->wed_dev;
--- a/drivers/net/ethernet/mediatek/mtk_wed_regs.h
+++ b/drivers/net/ethernet/mediatek/mtk_wed_regs.h
@@ -5,6 +5,7 @@
#define __MTK_WED_REGS_H
#define MTK_WDMA_DESC_CTRL_LEN1 GENMASK(14, 0)
+#define MTK_WDMA_DESC_CTRL_LEN1_V2 GENMASK(13, 0)
#define MTK_WDMA_DESC_CTRL_LAST_SEG1 BIT(15)
#define MTK_WDMA_DESC_CTRL_BURST BIT(16)
#define MTK_WDMA_DESC_CTRL_LEN0 GENMASK(29, 16)
@@ -41,6 +42,7 @@ struct mtk_wdma_desc {
#define MTK_WED_CTRL_RESERVE_EN BIT(12)
#define MTK_WED_CTRL_RESERVE_BUSY BIT(13)
#define MTK_WED_CTRL_FINAL_DIDX_READ BIT(24)
+#define MTK_WED_CTRL_ETH_DMAD_FMT BIT(25)
#define MTK_WED_CTRL_MIB_READ_CLEAR BIT(28)
#define MTK_WED_EXT_INT_STATUS 0x020
@@ -57,7 +59,8 @@ struct mtk_wdma_desc {
#define MTK_WED_EXT_INT_STATUS_RX_DRV_INIT_WDMA_EN BIT(19)
#define MTK_WED_EXT_INT_STATUS_RX_DRV_BM_DMAD_COHERENT BIT(20)
#define MTK_WED_EXT_INT_STATUS_TX_DRV_R_RESP_ERR BIT(21)
-#define MTK_WED_EXT_INT_STATUS_TX_DRV_W_RESP_ERR BIT(22)
+#define MTK_WED_EXT_INT_STATUS_TX_DMA_R_RESP_ERR BIT(22)
+#define MTK_WED_EXT_INT_STATUS_TX_DMA_W_RESP_ERR BIT(23)
#define MTK_WED_EXT_INT_STATUS_RX_DRV_DMA_RECYCLE BIT(24)
#define MTK_WED_EXT_INT_STATUS_ERROR_MASK (MTK_WED_EXT_INT_STATUS_TF_LEN_ERR | \
MTK_WED_EXT_INT_STATUS_TKID_WO_PYLD | \
@@ -65,8 +68,7 @@ struct mtk_wdma_desc {
MTK_WED_EXT_INT_STATUS_RX_DRV_R_RESP_ERR | \
MTK_WED_EXT_INT_STATUS_RX_DRV_W_RESP_ERR | \
MTK_WED_EXT_INT_STATUS_RX_DRV_INIT_WDMA_EN | \
- MTK_WED_EXT_INT_STATUS_TX_DRV_R_RESP_ERR | \
- MTK_WED_EXT_INT_STATUS_TX_DRV_W_RESP_ERR)
+ MTK_WED_EXT_INT_STATUS_TX_DMA_R_RESP_ERR)
#define MTK_WED_EXT_INT_MASK 0x028
@@ -81,6 +83,7 @@ struct mtk_wdma_desc {
#define MTK_WED_TX_BM_BASE 0x084
#define MTK_WED_TX_BM_TKID 0x088
+#define MTK_WED_TX_BM_TKID_V2 0x0c8
#define MTK_WED_TX_BM_TKID_START GENMASK(15, 0)
#define MTK_WED_TX_BM_TKID_END GENMASK(31, 16)
@@ -94,7 +97,25 @@ struct mtk_wdma_desc {
#define MTK_WED_TX_BM_DYN_THR 0x0a0
#define MTK_WED_TX_BM_DYN_THR_LO GENMASK(6, 0)
+#define MTK_WED_TX_BM_DYN_THR_LO_V2 GENMASK(8, 0)
#define MTK_WED_TX_BM_DYN_THR_HI GENMASK(22, 16)
+#define MTK_WED_TX_BM_DYN_THR_HI_V2 GENMASK(24, 16)
+
+#define MTK_WED_TX_TKID_CTRL 0x0c0
+#define MTK_WED_TX_TKID_CTRL_VLD_GRP_NUM GENMASK(6, 0)
+#define MTK_WED_TX_TKID_CTRL_RSV_GRP_NUM GENMASK(22, 16)
+#define MTK_WED_TX_TKID_CTRL_PAUSE BIT(28)
+
+#define MTK_WED_TX_TKID_DYN_THR 0x0e0
+#define MTK_WED_TX_TKID_DYN_THR_LO GENMASK(6, 0)
+#define MTK_WED_TX_TKID_DYN_THR_HI GENMASK(22, 16)
+
+#define MTK_WED_TXP_DW0 0x120
+#define MTK_WED_TXP_DW1 0x124
+#define MTK_WED_WPDMA_WRITE_TXP GENMASK(31, 16)
+#define MTK_WED_TXDP_CTRL 0x130
+#define MTK_WED_TXDP_DW9_OVERWR BIT(9)
+#define MTK_WED_RX_BM_TKID_MIB 0x1cc
#define MTK_WED_INT_STATUS 0x200
#define MTK_WED_INT_MASK 0x204
@@ -125,6 +146,7 @@ struct mtk_wdma_desc {
#define MTK_WED_RESET_IDX_RX GENMASK(17, 16)
#define MTK_WED_TX_MIB(_n) (0x2a0 + (_n) * 4)
+#define MTK_WED_RX_MIB(_n) (0x2e0 + (_n) * 4)
#define MTK_WED_RING_TX(_n) (0x300 + (_n) * 0x10)
@@ -155,21 +177,62 @@ struct mtk_wdma_desc {
#define MTK_WED_WPDMA_GLO_CFG_BYTE_SWAP BIT(29)
#define MTK_WED_WPDMA_GLO_CFG_RX_2B_OFFSET BIT(31)
+/* CONFIG_MEDIATEK_NETSYS_V2 */
+#define MTK_WED_WPDMA_GLO_CFG_RX_DRV_R0_PKT_PROC BIT(4)
+#define MTK_WED_WPDMA_GLO_CFG_RX_DRV_R1_PKT_PROC BIT(5)
+#define MTK_WED_WPDMA_GLO_CFG_RX_DRV_R0_CRX_SYNC BIT(6)
+#define MTK_WED_WPDMA_GLO_CFG_RX_DRV_R1_CRX_SYNC BIT(7)
+#define MTK_WED_WPDMA_GLO_CFG_RX_DRV_EVENT_PKT_FMT_VER GENMASK(18, 16)
+#define MTK_WED_WPDMA_GLO_CFG_RX_DRV_UNSUPPORT_FMT BIT(19)
+#define MTK_WED_WPDMA_GLO_CFG_RX_DRV_UEVENT_PKT_FMT_CHK BIT(20)
+#define MTK_WED_WPDMA_GLO_CFG_RX_DDONE2_WR BIT(21)
+#define MTK_WED_WPDMA_GLO_CFG_TX_TKID_KEEP BIT(24)
+#define MTK_WED_WPDMA_GLO_CFG_TX_DMAD_DW3_PREV BIT(28)
+
#define MTK_WED_WPDMA_RESET_IDX 0x50c
#define MTK_WED_WPDMA_RESET_IDX_TX GENMASK(3, 0)
#define MTK_WED_WPDMA_RESET_IDX_RX GENMASK(17, 16)
+#define MTK_WED_WPDMA_CTRL 0x518
+#define MTK_WED_WPDMA_CTRL_SDL1_FIXED BIT(31)
+
#define MTK_WED_WPDMA_INT_CTRL 0x520
#define MTK_WED_WPDMA_INT_CTRL_SUBRT_ADV BIT(21)
#define MTK_WED_WPDMA_INT_MASK 0x524
+#define MTK_WED_WPDMA_INT_CTRL_TX 0x530
+#define MTK_WED_WPDMA_INT_CTRL_TX0_DONE_EN BIT(0)
+#define MTK_WED_WPDMA_INT_CTRL_TX0_DONE_CLR BIT(1)
+#define MTK_WED_WPDMA_INT_CTRL_TX0_DONE_TRIG GENMASK(6, 2)
+#define MTK_WED_WPDMA_INT_CTRL_TX1_DONE_EN BIT(8)
+#define MTK_WED_WPDMA_INT_CTRL_TX1_DONE_CLR BIT(9)
+#define MTK_WED_WPDMA_INT_CTRL_TX1_DONE_TRIG GENMASK(14, 10)
+
+#define MTK_WED_WPDMA_INT_CTRL_RX 0x534
+
+#define MTK_WED_WPDMA_INT_CTRL_TX_FREE 0x538
+#define MTK_WED_WPDMA_INT_CTRL_TX_FREE_DONE_EN BIT(0)
+#define MTK_WED_WPDMA_INT_CTRL_TX_FREE_DONE_CLR BIT(1)
+#define MTK_WED_WPDMA_INT_CTRL_TX_FREE_DONE_TRIG GENMASK(6, 2)
+
#define MTK_WED_PCIE_CFG_BASE 0x560
+#define MTK_WED_PCIE_CFG_BASE 0x560
+#define MTK_WED_PCIE_CFG_INTM 0x564
+#define MTK_WED_PCIE_CFG_MSIS 0x568
#define MTK_WED_PCIE_INT_TRIGGER 0x570
#define MTK_WED_PCIE_INT_TRIGGER_STATUS BIT(16)
+#define MTK_WED_PCIE_INT_CTRL 0x57c
+#define MTK_WED_PCIE_INT_CTRL_MSK_EN_POLA BIT(20)
+#define MTK_WED_PCIE_INT_CTRL_SRC_SEL GENMASK(17, 16)
+#define MTK_WED_PCIE_INT_CTRL_POLL_EN GENMASK(13, 12)
+
#define MTK_WED_WPDMA_CFG_BASE 0x580
+#define MTK_WED_WPDMA_CFG_INT_MASK 0x584
+#define MTK_WED_WPDMA_CFG_TX 0x588
+#define MTK_WED_WPDMA_CFG_TX_FREE 0x58c
#define MTK_WED_WPDMA_TX_MIB(_n) (0x5a0 + (_n) * 4)
#define MTK_WED_WPDMA_TX_COHERENT_MIB(_n) (0x5d0 + (_n) * 4)
@@ -203,15 +266,24 @@ struct mtk_wdma_desc {
#define MTK_WED_WDMA_RESET_IDX_RX GENMASK(17, 16)
#define MTK_WED_WDMA_RESET_IDX_DRV GENMASK(25, 24)
+#define MTK_WED_WDMA_INT_CLR 0xa24
+#define MTK_WED_WDMA_INT_CLR_RX_DONE GENMASK(17, 16)
+
#define MTK_WED_WDMA_INT_TRIGGER 0xa28
#define MTK_WED_WDMA_INT_TRIGGER_RX_DONE GENMASK(17, 16)
#define MTK_WED_WDMA_INT_CTRL 0xa2c
#define MTK_WED_WDMA_INT_CTRL_POLL_SRC_SEL GENMASK(17, 16)
+#define MTK_WED_WDMA_CFG_BASE 0xaa0
#define MTK_WED_WDMA_OFFSET0 0xaa4
#define MTK_WED_WDMA_OFFSET1 0xaa8
+#define MTK_WED_WDMA_OFST0_GLO_INTS GENMASK(15, 0)
+#define MTK_WED_WDMA_OFST0_GLO_CFG GENMASK(31, 16)
+#define MTK_WED_WDMA_OFST1_TX_CTRL GENMASK(15, 0)
+#define MTK_WED_WDMA_OFST1_RX_CTRL GENMASK(31, 16)
+
#define MTK_WED_WDMA_RX_MIB(_n) (0xae0 + (_n) * 4)
#define MTK_WED_WDMA_RX_RECYCLE_MIB(_n) (0xae8 + (_n) * 4)
#define MTK_WED_WDMA_RX_PROCESSED_MIB(_n) (0xaf0 + (_n) * 4)
@@ -221,6 +293,7 @@ struct mtk_wdma_desc {
#define MTK_WED_RING_OFS_CPU_IDX 0x08
#define MTK_WED_RING_OFS_DMA_IDX 0x0c
+#define MTK_WDMA_RING_TX(_n) (0x000 + (_n) * 0x10)
#define MTK_WDMA_RING_RX(_n) (0x100 + (_n) * 0x10)
#define MTK_WDMA_GLO_CFG 0x204
@@ -234,6 +307,8 @@ struct mtk_wdma_desc {
#define MTK_WDMA_RESET_IDX_TX GENMASK(3, 0)
#define MTK_WDMA_RESET_IDX_RX GENMASK(17, 16)
+#define MTK_WDMA_INT_STATUS 0x220
+
#define MTK_WDMA_INT_MASK 0x228
#define MTK_WDMA_INT_MASK_TX_DONE GENMASK(3, 0)
#define MTK_WDMA_INT_MASK_RX_DONE GENMASK(17, 16)
--- a/include/linux/soc/mediatek/mtk_wed.h
+++ b/include/linux/soc/mediatek/mtk_wed.h
@@ -14,6 +14,7 @@ struct mtk_wdma_desc;
struct mtk_wed_ring {
struct mtk_wdma_desc *desc;
dma_addr_t desc_phys;
+ u32 desc_size;
int size;
u32 reg_base;
@@ -45,10 +46,17 @@ struct mtk_wed_device {
struct pci_dev *pci_dev;
u32 wpdma_phys;
+ u32 wpdma_int;
+ u32 wpdma_mask;
+ u32 wpdma_tx;
+ u32 wpdma_txfree;
u16 token_start;
unsigned int nbuf;
+ u8 tx_tbit[MTK_WED_TX_QUEUES];
+ u8 txfree_tbit;
+
u32 (*init_buf)(void *ptr, dma_addr_t phys, int token_id);
int (*offload_enable)(struct mtk_wed_device *wed);
void (*offload_disable)(struct mtk_wed_device *wed);

237
target/linux/generic/pending-5.15/797-net-ethernet-mtk_eth_wed-add-axi-bus-support.patch Normal file
View File

@ -0,0 +1,237 @@
From 6e1df49f330dce7c58a39d6772f1385b6887bb03 Mon Sep 17 00:00:00 2001
Message-Id: <6e1df49f330dce7c58a39d6772f1385b6887bb03.1662990860.git.lorenzo@kernel.org>
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Thu, 8 Sep 2022 11:26:10 +0200
Subject: [PATCH net-next] net: ethernet: mtk_eth_wed: add axi bus support
Other than pcie bus, introduce support for axi bus to mtk wed driver.
Axi bus is used to connect mt7986-wmac soc chip available on mt7986
device.
Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com>
Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com>
Co-developed-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
drivers/net/ethernet/mediatek/mtk_wed.c | 116 +++++++++++++------
drivers/net/ethernet/mediatek/mtk_wed_regs.h | 2 +
include/linux/soc/mediatek/mtk_wed.h | 11 +-
3 files changed, 91 insertions(+), 38 deletions(-)
--- a/drivers/net/ethernet/mediatek/mtk_wed.c
+++ b/drivers/net/ethernet/mediatek/mtk_wed.c
@@ -85,11 +85,31 @@ static struct mtk_wed_hw *
mtk_wed_assign(struct mtk_wed_device *dev)
{
struct mtk_wed_hw *hw;
+ int i;
+
+ if (dev->wlan.bus_type == MTK_WED_BUS_PCIE) {
+ hw = hw_list[pci_domain_nr(dev->wlan.pci_dev->bus)];
+ if (!hw)
+ return NULL;
+
+ if (!hw->wed_dev)
+ goto out;
+
+ if (hw->version == 1)
+ return NULL;
+
+ /* MT7986 WED devices do not have any pcie slot restrictions */
+ }
+ /* MT7986 PCIE or AXI */
+ for (i = 0; i < ARRAY_SIZE(hw_list); i++) {
+ hw = hw_list[i];
+ if (hw && !hw->wed_dev)
+ goto out;
+ }
- hw = hw_list[pci_domain_nr(dev->wlan.pci_dev->bus)];
- if (!hw || hw->wed_dev)
- return NULL;
+ return NULL;
+out:
hw->wed_dev = dev;
return hw;
}
@@ -322,7 +342,6 @@ mtk_wed_stop(struct mtk_wed_device *dev)
static void
mtk_wed_detach(struct mtk_wed_device *dev)
{
- struct device_node *wlan_node = dev->wlan.pci_dev->dev.of_node;
struct mtk_wed_hw *hw = dev->hw;
mutex_lock(&hw_lock);
@@ -337,9 +356,14 @@ mtk_wed_detach(struct mtk_wed_device *de
mtk_wed_free_buffer(dev);
mtk_wed_free_tx_rings(dev);
- if (of_dma_is_coherent(wlan_node) && hw->hifsys)
- regmap_update_bits(hw->hifsys, HIFSYS_DMA_AG_MAP,
- BIT(hw->index), BIT(hw->index));
+ if (dev->wlan.bus_type == MTK_WED_BUS_PCIE) {
+ struct device_node *wlan_node;
+
+ wlan_node = dev->wlan.pci_dev->dev.of_node;
+ if (of_dma_is_coherent(wlan_node) && hw->hifsys)
+ regmap_update_bits(hw->hifsys, HIFSYS_DMA_AG_MAP,
+ BIT(hw->index), BIT(hw->index));
+ }
if (!hw_list[!hw->index]->wed_dev &&
hw->eth->dma_dev != hw->eth->dev)
@@ -356,40 +380,54 @@ mtk_wed_detach(struct mtk_wed_device *de
static void
mtk_wed_bus_init(struct mtk_wed_device *dev)
{
- struct device_node *np = dev->hw->eth->dev->of_node;
- struct regmap *regs;
- u32 val;
-
- regs = syscon_regmap_lookup_by_phandle(np, "mediatek,wed-pcie");
- if (IS_ERR(regs))
- return;
+ switch (dev->wlan.bus_type) {
+ case MTK_WED_BUS_PCIE: {
+ struct device_node *np = dev->hw->eth->dev->of_node;
+ struct regmap *regs;
+ u32 val;
+
+ regs = syscon_regmap_lookup_by_phandle(np,
+ "mediatek,wed-pcie");
+ if (IS_ERR(regs))
+ break;
- regmap_update_bits(regs, 0, BIT(0), BIT(0));
+ regmap_update_bits(regs, 0, BIT(0), BIT(0));
- wed_w32(dev, MTK_WED_PCIE_INT_CTRL,
- FIELD_PREP(MTK_WED_PCIE_INT_CTRL_POLL_EN, 2));
+ wed_w32(dev, MTK_WED_PCIE_INT_CTRL,
+ FIELD_PREP(MTK_WED_PCIE_INT_CTRL_POLL_EN, 2));
- /* pcie interrupt control: pola/source selection */
- wed_set(dev, MTK_WED_PCIE_INT_CTRL,
- MTK_WED_PCIE_INT_CTRL_MSK_EN_POLA |
- FIELD_PREP(MTK_WED_PCIE_INT_CTRL_SRC_SEL, 1));
- wed_r32(dev, MTK_WED_PCIE_INT_CTRL);
-
- val = wed_r32(dev, MTK_WED_PCIE_CFG_INTM);
- val = wed_r32(dev, MTK_WED_PCIE_CFG_BASE);
- wed_w32(dev, MTK_WED_PCIE_CFG_INTM, PCIE_BASE_ADDR0 | 0x180);
- wed_w32(dev, MTK_WED_PCIE_CFG_BASE, PCIE_BASE_ADDR0 | 0x184);
-
- val = wed_r32(dev, MTK_WED_PCIE_CFG_INTM);
- val = wed_r32(dev, MTK_WED_PCIE_CFG_BASE);
-
- /* pcie interrupt status trigger register */
- wed_w32(dev, MTK_WED_PCIE_INT_TRIGGER, BIT(24));
- wed_r32(dev, MTK_WED_PCIE_INT_TRIGGER);
-
- /* pola setting */
- val = wed_r32(dev, MTK_WED_PCIE_INT_CTRL);
- wed_set(dev, MTK_WED_PCIE_INT_CTRL, MTK_WED_PCIE_INT_CTRL_MSK_EN_POLA);
+ /* pcie interrupt control: pola/source selection */
+ wed_set(dev, MTK_WED_PCIE_INT_CTRL,
+ MTK_WED_PCIE_INT_CTRL_MSK_EN_POLA |
+ FIELD_PREP(MTK_WED_PCIE_INT_CTRL_SRC_SEL, 1));
+ wed_r32(dev, MTK_WED_PCIE_INT_CTRL);
+
+ val = wed_r32(dev, MTK_WED_PCIE_CFG_INTM);
+ val = wed_r32(dev, MTK_WED_PCIE_CFG_BASE);
+ wed_w32(dev, MTK_WED_PCIE_CFG_INTM, PCIE_BASE_ADDR0 | 0x180);
+ wed_w32(dev, MTK_WED_PCIE_CFG_BASE, PCIE_BASE_ADDR0 | 0x184);
+
+ val = wed_r32(dev, MTK_WED_PCIE_CFG_INTM);
+ val = wed_r32(dev, MTK_WED_PCIE_CFG_BASE);
+
+ /* pcie interrupt status trigger register */
+ wed_w32(dev, MTK_WED_PCIE_INT_TRIGGER, BIT(24));
+ wed_r32(dev, MTK_WED_PCIE_INT_TRIGGER);
+
+ /* pola setting */
+ val = wed_r32(dev, MTK_WED_PCIE_INT_CTRL);
+ wed_set(dev, MTK_WED_PCIE_INT_CTRL,
+ MTK_WED_PCIE_INT_CTRL_MSK_EN_POLA);
+ break;
+ }
+ case MTK_WED_BUS_AXI:
+ wed_set(dev, MTK_WED_WPDMA_INT_CTRL,
+ MTK_WED_WPDMA_INT_CTRL_SIG_SRC |
+ FIELD_PREP(MTK_WED_WPDMA_INT_CTRL_SRC_SEL, 0));
+ break;
+ default:
+ break;
+ }
}
static void
@@ -800,12 +838,14 @@ mtk_wed_attach(struct mtk_wed_device *de
__releases(RCU)
{
struct mtk_wed_hw *hw;
+ struct device *device;
int ret = 0;
RCU_LOCKDEP_WARN(!rcu_read_lock_held(),
"mtk_wed_attach without holding the RCU read lock");
- if (pci_domain_nr(dev->wlan.pci_dev->bus) > 1 ||
+ if ((dev->wlan.bus_type == MTK_WED_BUS_PCIE &&
+ pci_domain_nr(dev->wlan.pci_dev->bus) > 1) ||
!try_module_get(THIS_MODULE))
ret = -ENODEV;
@@ -823,8 +863,10 @@ mtk_wed_attach(struct mtk_wed_device *de
goto out;
}
- dev_info(&dev->wlan.pci_dev->dev,
- "attaching wed device %d version %d\n",
+ device = dev->wlan.bus_type == MTK_WED_BUS_PCIE
+ ? &dev->wlan.pci_dev->dev
+ : &dev->wlan.platform_dev->dev;
+ dev_info(device, "attaching wed device %d version %d\n",
hw->index, hw->version);
dev->hw = hw;
--- a/drivers/net/ethernet/mediatek/mtk_wed_regs.h
+++ b/drivers/net/ethernet/mediatek/mtk_wed_regs.h
@@ -198,6 +198,8 @@ struct mtk_wdma_desc {
#define MTK_WED_WPDMA_INT_CTRL 0x520
#define MTK_WED_WPDMA_INT_CTRL_SUBRT_ADV BIT(21)
+#define MTK_WED_WPDMA_INT_CTRL_SIG_SRC BIT(22)
+#define MTK_WED_WPDMA_INT_CTRL_SRC_SEL GENMASK(17, 16)
#define MTK_WED_WPDMA_INT_MASK 0x524
--- a/include/linux/soc/mediatek/mtk_wed.h
+++ b/include/linux/soc/mediatek/mtk_wed.h
@@ -11,6 +11,11 @@
struct mtk_wed_hw;
struct mtk_wdma_desc;
+enum mtk_wed_bus_tye {
+ MTK_WED_BUS_PCIE,
+ MTK_WED_BUS_AXI,
+};
+
struct mtk_wed_ring {
struct mtk_wdma_desc *desc;
dma_addr_t desc_phys;
@@ -43,7 +48,11 @@ struct mtk_wed_device {
/* filled by driver: */
struct {
- struct pci_dev *pci_dev;
+ union {
+ struct platform_device *platform_dev;
+ struct pci_dev *pci_dev;
+ };
+ enum mtk_wed_bus_tye bus_type;
u32 wpdma_phys;
u32 wpdma_int;

882
target/linux/generic/pending-5.15/798-net-ethernet-mtk_eth_soc-introduce-flow-offloading-s.patch Normal file
View File

@ -0,0 +1,882 @@
From 93408c858e5dc01d97c55efa721268f63fde2ae5 Mon Sep 17 00:00:00 2001
Message-Id: <93408c858e5dc01d97c55efa721268f63fde2ae5.1662886034.git.lorenzo@kernel.org>
In-Reply-To: <e5ecb4f619197b93fa682d722452dc8412864cdb.1662886033.git.lorenzo@kernel.org>
References: <e5ecb4f619197b93fa682d722452dc8412864cdb.1662886033.git.lorenzo@kernel.org>
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Sat, 3 Sep 2022 18:34:09 +0200
Subject: [PATCH net-next 4/5] net: ethernet: mtk_eth_soc: introduce flow
offloading support for mt7986
Introduce hw flow offload support for mt7986 chipset. PPE is not enabled
yet in mt7986 since mt76 support is not available yet.
Co-developed-by: Bo Jiao <Bo.Jiao@mediatek.com>
Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com>
Co-developed-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 11 +-
drivers/net/ethernet/mediatek/mtk_eth_soc.h | 72 ++++++
drivers/net/ethernet/mediatek/mtk_ppe.c | 213 +++++++++++-------
drivers/net/ethernet/mediatek/mtk_ppe.h | 52 ++++-
.../net/ethernet/mediatek/mtk_ppe_offload.c | 49 ++--
drivers/net/ethernet/mediatek/mtk_ppe_regs.h | 8 +
6 files changed, 289 insertions(+), 116 deletions(-)
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -1858,12 +1858,14 @@ static int mtk_poll_rx(struct napi_struc
bytes += skb->len;
if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) {
+ reason = FIELD_GET(MTK_RXD5_PPE_CPU_REASON, trxd.rxd5);
hash = trxd.rxd5 & MTK_RXD5_FOE_ENTRY;
if (hash != MTK_RXD5_FOE_ENTRY)
skb_set_hash(skb, jhash_1word(hash, 0),
PKT_HASH_TYPE_L4);
rxdcsum = &trxd.rxd3;
} else {
+ reason = FIELD_GET(MTK_RXD4_PPE_CPU_REASON, trxd.rxd4);
hash = trxd.rxd4 & MTK_RXD4_FOE_ENTRY;
if (hash != MTK_RXD4_FOE_ENTRY)
skb_set_hash(skb, jhash_1word(hash, 0),
@@ -1877,7 +1879,6 @@ static int mtk_poll_rx(struct napi_struc
skb_checksum_none_assert(skb);
skb->protocol = eth_type_trans(skb, netdev);
- reason = FIELD_GET(MTK_RXD4_PPE_CPU_REASON, trxd.rxd4);
if (reason == MTK_PPE_CPU_REASON_HIT_UNBIND_RATE_REACHED)
mtk_ppe_check_skb(eth->ppe[0], skb, hash);
@@ -4183,7 +4184,7 @@ static const struct mtk_soc_data mt7621_
.required_pctl = false,
.offload_version = 2,
.hash_offset = 2,
- .foe_entry_size = sizeof(struct mtk_foe_entry),
+ .foe_entry_size = sizeof(struct mtk_foe_entry) - 16,
.txrx = {
.txd_size = sizeof(struct mtk_tx_dma),
.rxd_size = sizeof(struct mtk_rx_dma),
@@ -4203,7 +4204,7 @@ static const struct mtk_soc_data mt7622_
.required_pctl = false,
.offload_version = 2,
.hash_offset = 2,
- .foe_entry_size = sizeof(struct mtk_foe_entry),
+ .foe_entry_size = sizeof(struct mtk_foe_entry) - 16,
.txrx = {
.txd_size = sizeof(struct mtk_tx_dma),
.rxd_size = sizeof(struct mtk_rx_dma),
@@ -4222,7 +4223,7 @@ static const struct mtk_soc_data mt7623_
.required_pctl = true,
.offload_version = 2,
.hash_offset = 2,
- .foe_entry_size = sizeof(struct mtk_foe_entry),
+ .foe_entry_size = sizeof(struct mtk_foe_entry) - 16,
.txrx = {
.txd_size = sizeof(struct mtk_tx_dma),
.rxd_size = sizeof(struct mtk_rx_dma),
@@ -4254,9 +4255,11 @@ static const struct mtk_soc_data mt7986_
.reg_map = &mt7986_reg_map,
.ana_rgc3 = 0x128,
.caps = MT7986_CAPS,
+ .hw_features = MTK_HW_FEATURES,
.required_clks = MT7986_CLKS_BITMAP,
.required_pctl = false,
.hash_offset = 4,
+ .foe_entry_size = sizeof(struct mtk_foe_entry),
.txrx = {
.txd_size = sizeof(struct mtk_tx_dma_v2),
.rxd_size = sizeof(struct mtk_rx_dma_v2),
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -1150,6 +1150,78 @@ mtk_foe_get_entry(struct mtk_ppe *ppe, u
return ppe->foe_table + hash * soc->foe_entry_size;
}
+static inline u32 mtk_get_ib1_ts_mask(struct mtk_eth *eth)
+{
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2))
+ return MTK_FOE_IB1_BIND_TIMESTAMP_V2;
+
+ return MTK_FOE_IB1_BIND_TIMESTAMP;
+}
+
+static inline u32 mtk_get_ib1_ppoe_mask(struct mtk_eth *eth)
+{
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2))
+ return MTK_FOE_IB1_BIND_PPPOE_V2;
+
+ return MTK_FOE_IB1_BIND_PPPOE;
+}
+
+static inline u32 mtk_get_ib1_vlan_tag_mask(struct mtk_eth *eth)
+{
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2))
+ return MTK_FOE_IB1_BIND_VLAN_TAG_V2;
+
+ return MTK_FOE_IB1_BIND_VLAN_TAG;
+}
+
+static inline u32 mtk_get_ib1_vlan_layer_mask(struct mtk_eth *eth)
+{
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2))
+ return MTK_FOE_IB1_BIND_VLAN_LAYER_V2;
+
+ return MTK_FOE_IB1_BIND_VLAN_LAYER;
+}
+
+static inline u32 mtk_prep_ib1_vlan_layer(struct mtk_eth *eth, u32 val)
+{
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2))
+ return FIELD_PREP(MTK_FOE_IB1_BIND_VLAN_LAYER_V2, val);
+
+ return FIELD_PREP(MTK_FOE_IB1_BIND_VLAN_LAYER, val);
+}
+
+static inline u32 mtk_get_ib1_vlan_layer(struct mtk_eth *eth, u32 val)
+{
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2))
+ return FIELD_GET(MTK_FOE_IB1_BIND_VLAN_LAYER_V2, val);
+
+ return FIELD_GET(MTK_FOE_IB1_BIND_VLAN_LAYER, val);
+}
+
+static inline u32 mtk_get_ib1_pkt_type_mask(struct mtk_eth *eth)
+{
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2))
+ return MTK_FOE_IB1_PACKET_TYPE_V2;
+
+ return MTK_FOE_IB1_PACKET_TYPE;
+}
+
+static inline u32 mtk_get_ib1_pkt_type(struct mtk_eth *eth, u32 val)
+{
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2))
+ return FIELD_GET(MTK_FOE_IB1_PACKET_TYPE_V2, val);
+
+ return FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, val);
+}
+
+static inline u32 mtk_get_ib2_multicast_mask(struct mtk_eth *eth)
+{
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2))
+ return MTK_FOE_IB2_MULTICAST_V2;
+
+ return MTK_FOE_IB2_MULTICAST;
+}
+
/* read the hardware status register */
void mtk_stats_update_mac(struct mtk_mac *mac);
--- a/drivers/net/ethernet/mediatek/mtk_ppe.c
+++ b/drivers/net/ethernet/mediatek/mtk_ppe.c
@@ -56,7 +56,7 @@ static u32 ppe_clear(struct mtk_ppe *ppe
static u32 mtk_eth_timestamp(struct mtk_eth *eth)
{
- return mtk_r32(eth, 0x0010) & MTK_FOE_IB1_BIND_TIMESTAMP;
+ return mtk_r32(eth, 0x0010) & mtk_get_ib1_ts_mask(eth);
}
static int mtk_ppe_wait_busy(struct mtk_ppe *ppe)
@@ -93,7 +93,7 @@ static u32 mtk_ppe_hash_entry(struct mtk
u32 hv1, hv2, hv3;
u32 hash;
- switch (FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, e->ib1)) {
+ switch (mtk_get_ib1_pkt_type(eth, e->ib1)) {
case MTK_PPE_PKT_TYPE_IPV4_ROUTE:
case MTK_PPE_PKT_TYPE_IPV4_HNAPT:
hv1 = e->ipv4.orig.ports;
@@ -129,9 +129,9 @@ static u32 mtk_ppe_hash_entry(struct mtk
}
static inline struct mtk_foe_mac_info *
-mtk_foe_entry_l2(struct mtk_foe_entry *entry)
+mtk_foe_entry_l2(struct mtk_eth *eth, struct mtk_foe_entry *entry)
{
- int type = FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, entry->ib1);
+ int type = mtk_get_ib1_pkt_type(eth, entry->ib1);
if (type == MTK_PPE_PKT_TYPE_BRIDGE)
return &entry->bridge.l2;
@@ -143,9 +143,9 @@ mtk_foe_entry_l2(struct mtk_foe_entry *e
}
static inline u32 *
-mtk_foe_entry_ib2(struct mtk_foe_entry *entry)
+mtk_foe_entry_ib2(struct mtk_eth *eth, struct mtk_foe_entry *entry)
{
- int type = FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, entry->ib1);
+ int type = mtk_get_ib1_pkt_type(eth, entry->ib1);
if (type == MTK_PPE_PKT_TYPE_BRIDGE)
return &entry->bridge.ib2;
@@ -156,27 +156,38 @@ mtk_foe_entry_ib2(struct mtk_foe_entry *
return &entry->ipv4.ib2;
}
-int mtk_foe_entry_prepare(struct mtk_foe_entry *entry, int type, int l4proto,
- u8 pse_port, u8 *src_mac, u8 *dest_mac)
+int mtk_foe_entry_prepare(struct mtk_eth *eth, struct mtk_foe_entry *entry,
+ int type, int l4proto, u8 pse_port, u8 *src_mac,
+ u8 *dest_mac)
{
struct mtk_foe_mac_info *l2;
u32 ports_pad, val;
memset(entry, 0, sizeof(*entry));
- val = FIELD_PREP(MTK_FOE_IB1_STATE, MTK_FOE_STATE_BIND) |
- FIELD_PREP(MTK_FOE_IB1_PACKET_TYPE, type) |
- FIELD_PREP(MTK_FOE_IB1_UDP, l4proto == IPPROTO_UDP) |
- MTK_FOE_IB1_BIND_TTL |
- MTK_FOE_IB1_BIND_CACHE;
- entry->ib1 = val;
-
- val = FIELD_PREP(MTK_FOE_IB2_PORT_MG, 0x3f) |
- FIELD_PREP(MTK_FOE_IB2_PORT_AG, 0x1f) |
- FIELD_PREP(MTK_FOE_IB2_DEST_PORT, pse_port);
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) {
+ val = FIELD_PREP(MTK_FOE_IB1_STATE, MTK_FOE_STATE_BIND) |
+ FIELD_PREP(MTK_FOE_IB1_PACKET_TYPE_V2, type) |
+ FIELD_PREP(MTK_FOE_IB1_UDP, l4proto == IPPROTO_UDP) |
+ MTK_FOE_IB1_BIND_CACHE_V2 | MTK_FOE_IB1_BIND_TTL_V2;
+ entry->ib1 = val;
+
+ val = FIELD_PREP(MTK_FOE_IB2_DEST_PORT_V2, pse_port) |
+ FIELD_PREP(MTK_FOE_IB2_PORT_AG_V2, 0xf);
+ } else {
+ val = FIELD_PREP(MTK_FOE_IB1_STATE, MTK_FOE_STATE_BIND) |
+ FIELD_PREP(MTK_FOE_IB1_PACKET_TYPE, type) |
+ FIELD_PREP(MTK_FOE_IB1_UDP, l4proto == IPPROTO_UDP) |
+ MTK_FOE_IB1_BIND_CACHE | MTK_FOE_IB1_BIND_TTL;
+ entry->ib1 = val;
+
+ val = FIELD_PREP(MTK_FOE_IB2_DEST_PORT, pse_port) |
+ FIELD_PREP(MTK_FOE_IB2_PORT_MG, 0x3f) |
+ FIELD_PREP(MTK_FOE_IB2_PORT_AG, 0x1f);
+ }
if (is_multicast_ether_addr(dest_mac))
- val |= MTK_FOE_IB2_MULTICAST;
+ val |= mtk_get_ib2_multicast_mask(eth);
ports_pad = 0xa5a5a500 | (l4proto & 0xff);
if (type == MTK_PPE_PKT_TYPE_IPV4_ROUTE)
@@ -210,24 +221,30 @@ int mtk_foe_entry_prepare(struct mtk_foe
return 0;
}
-int mtk_foe_entry_set_pse_port(struct mtk_foe_entry *entry, u8 port)
+int mtk_foe_entry_set_pse_port(struct mtk_eth *eth,
+ struct mtk_foe_entry *entry, u8 port)
{
- u32 *ib2 = mtk_foe_entry_ib2(entry);
- u32 val;
+ u32 *ib2 = mtk_foe_entry_ib2(eth, entry);
+ u32 val = *ib2;
- val = *ib2;
- val &= ~MTK_FOE_IB2_DEST_PORT;
- val |= FIELD_PREP(MTK_FOE_IB2_DEST_PORT, port);
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) {
+ val &= ~MTK_FOE_IB2_DEST_PORT_V2;
+ val |= FIELD_PREP(MTK_FOE_IB2_DEST_PORT_V2, port);
+ } else {
+ val &= ~MTK_FOE_IB2_DEST_PORT;
+ val |= FIELD_PREP(MTK_FOE_IB2_DEST_PORT, port);
+ }
*ib2 = val;
return 0;
}
-int mtk_foe_entry_set_ipv4_tuple(struct mtk_foe_entry *entry, bool egress,
+int mtk_foe_entry_set_ipv4_tuple(struct mtk_eth *eth,
+ struct mtk_foe_entry *entry, bool egress,
__be32 src_addr, __be16 src_port,
__be32 dest_addr, __be16 dest_port)
{
- int type = FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, entry->ib1);
+ int type = mtk_get_ib1_pkt_type(eth, entry->ib1);
struct mtk_ipv4_tuple *t;
switch (type) {
@@ -262,11 +279,12 @@ int mtk_foe_entry_set_ipv4_tuple(struct
return 0;
}
-int mtk_foe_entry_set_ipv6_tuple(struct mtk_foe_entry *entry,
+int mtk_foe_entry_set_ipv6_tuple(struct mtk_eth *eth,
+ struct mtk_foe_entry *entry,
__be32 *src_addr, __be16 src_port,
__be32 *dest_addr, __be16 dest_port)
{
- int type = FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, entry->ib1);
+ int type = mtk_get_ib1_pkt_type(eth, entry->ib1);
u32 *src, *dest;
int i;
@@ -297,39 +315,41 @@ int mtk_foe_entry_set_ipv6_tuple(struct
return 0;
}
-int mtk_foe_entry_set_dsa(struct mtk_foe_entry *entry, int port)
+int mtk_foe_entry_set_dsa(struct mtk_eth *eth, struct mtk_foe_entry *entry,
+ int port)
{
- struct mtk_foe_mac_info *l2 = mtk_foe_entry_l2(entry);
+ struct mtk_foe_mac_info *l2 = mtk_foe_entry_l2(eth, entry);
l2->etype = BIT(port);
- if (!(entry->ib1 & MTK_FOE_IB1_BIND_VLAN_LAYER))
- entry->ib1 |= FIELD_PREP(MTK_FOE_IB1_BIND_VLAN_LAYER, 1);
+ if (!(entry->ib1 & mtk_get_ib1_vlan_layer_mask(eth)))
+ entry->ib1 |= mtk_prep_ib1_vlan_layer(eth, 1);
else
l2->etype |= BIT(8);
- entry->ib1 &= ~MTK_FOE_IB1_BIND_VLAN_TAG;
+ entry->ib1 &= ~mtk_get_ib1_vlan_tag_mask(eth);
return 0;
}
-int mtk_foe_entry_set_vlan(struct mtk_foe_entry *entry, int vid)
+int mtk_foe_entry_set_vlan(struct mtk_eth *eth, struct mtk_foe_entry *entry,
+ int vid)
{
- struct mtk_foe_mac_info *l2 = mtk_foe_entry_l2(entry);
+ struct mtk_foe_mac_info *l2 = mtk_foe_entry_l2(eth, entry);
- switch (FIELD_GET(MTK_FOE_IB1_BIND_VLAN_LAYER, entry->ib1)) {
+ switch (mtk_prep_ib1_vlan_layer(eth, entry->ib1)) {
case 0:
- entry->ib1 |= MTK_FOE_IB1_BIND_VLAN_TAG |
- FIELD_PREP(MTK_FOE_IB1_BIND_VLAN_LAYER, 1);
+ entry->ib1 |= mtk_get_ib1_vlan_tag_mask(eth) |
+ mtk_prep_ib1_vlan_layer(eth, 1);
l2->vlan1 = vid;
return 0;
case 1:
- if (!(entry->ib1 & MTK_FOE_IB1_BIND_VLAN_TAG)) {
+ if (!(entry->ib1 & mtk_get_ib1_vlan_tag_mask(eth))) {
l2->vlan1 = vid;
l2->etype |= BIT(8);
} else {
l2->vlan2 = vid;
- entry->ib1 += FIELD_PREP(MTK_FOE_IB1_BIND_VLAN_LAYER, 1);
+ entry->ib1 += mtk_prep_ib1_vlan_layer(eth, 1);
}
return 0;
default:
@@ -337,34 +357,42 @@ int mtk_foe_entry_set_vlan(struct mtk_fo
}
}
-int mtk_foe_entry_set_pppoe(struct mtk_foe_entry *entry, int sid)
+int mtk_foe_entry_set_pppoe(struct mtk_eth *eth, struct mtk_foe_entry *entry,
+ int sid)
{
- struct mtk_foe_mac_info *l2 = mtk_foe_entry_l2(entry);
+ struct mtk_foe_mac_info *l2 = mtk_foe_entry_l2(eth, entry);
- if (!(entry->ib1 & MTK_FOE_IB1_BIND_VLAN_LAYER) ||
- (entry->ib1 & MTK_FOE_IB1_BIND_VLAN_TAG))
+ if (!(entry->ib1 & mtk_get_ib1_vlan_layer_mask(eth)) ||
+ (entry->ib1 & mtk_get_ib1_vlan_tag_mask(eth)))
l2->etype = ETH_P_PPP_SES;
- entry->ib1 |= MTK_FOE_IB1_BIND_PPPOE;
+ entry->ib1 |= mtk_get_ib1_ppoe_mask(eth);
l2->pppoe_id = sid;
return 0;
}
-int mtk_foe_entry_set_wdma(struct mtk_foe_entry *entry, int wdma_idx, int txq,
- int bss, int wcid)
+int mtk_foe_entry_set_wdma(struct mtk_eth *eth, struct mtk_foe_entry *entry,
+ int wdma_idx, int txq, int bss, int wcid)
{
- struct mtk_foe_mac_info *l2 = mtk_foe_entry_l2(entry);
- u32 *ib2 = mtk_foe_entry_ib2(entry);
+ struct mtk_foe_mac_info *l2 = mtk_foe_entry_l2(eth, entry);
+ u32 *ib2 = mtk_foe_entry_ib2(eth, entry);
- *ib2 &= ~MTK_FOE_IB2_PORT_MG;
- *ib2 |= MTK_FOE_IB2_WDMA_WINFO;
- if (wdma_idx)
- *ib2 |= MTK_FOE_IB2_WDMA_DEVIDX;
-
- l2->vlan2 = FIELD_PREP(MTK_FOE_VLAN2_WINFO_BSS, bss) |
- FIELD_PREP(MTK_FOE_VLAN2_WINFO_WCID, wcid) |
- FIELD_PREP(MTK_FOE_VLAN2_WINFO_RING, txq);
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) {
+ *ib2 &= ~MTK_FOE_IB2_PORT_MG_V2;
+ *ib2 |= FIELD_PREP(MTK_FOE_IB2_RX_IDX, txq) |
+ MTK_FOE_IB2_WDMA_WINFO_V2;
+ l2->winfo = FIELD_PREP(MTK_FOE_WINFO_WCID, wcid) |
+ FIELD_PREP(MTK_FOE_WINFO_BSS, bss);
+ } else {
+ *ib2 &= ~MTK_FOE_IB2_PORT_MG;
+ *ib2 |= MTK_FOE_IB2_WDMA_WINFO;
+ if (wdma_idx)
+ *ib2 |= MTK_FOE_IB2_WDMA_DEVIDX;
+ l2->vlan2 = FIELD_PREP(MTK_FOE_VLAN2_WINFO_BSS, bss) |
+ FIELD_PREP(MTK_FOE_VLAN2_WINFO_WCID, wcid) |
+ FIELD_PREP(MTK_FOE_VLAN2_WINFO_RING, txq);
+ }
return 0;
}
@@ -376,14 +404,15 @@ static inline bool mtk_foe_entry_usable(
}
static bool
-mtk_flow_entry_match(struct mtk_flow_entry *entry, struct mtk_foe_entry *data)
+mtk_flow_entry_match(struct mtk_eth *eth, struct mtk_flow_entry *entry,
+ struct mtk_foe_entry *data)
{
int type, len;
if ((data->ib1 ^ entry->data.ib1) & MTK_FOE_IB1_UDP)
return false;
- type = FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, entry->data.ib1);
+ type = mtk_get_ib1_pkt_type(eth, entry->data.ib1);
if (type > MTK_PPE_PKT_TYPE_IPV4_DSLITE)
len = offsetof(struct mtk_foe_entry, ipv6._rsv);
else
@@ -427,14 +456,12 @@ __mtk_foe_entry_clear(struct mtk_ppe *pp
static int __mtk_foe_entry_idle_time(struct mtk_ppe *ppe, u32 ib1)
{
- u16 timestamp;
- u16 now;
-
- now = mtk_eth_timestamp(ppe->eth) & MTK_FOE_IB1_BIND_TIMESTAMP;
- timestamp = ib1 & MTK_FOE_IB1_BIND_TIMESTAMP;
+ u32 ib1_ts_mask = mtk_get_ib1_ts_mask(ppe->eth);
+ u16 now = mtk_eth_timestamp(ppe->eth);
+ u16 timestamp = ib1 & ib1_ts_mask;
if (timestamp > now)
- return MTK_FOE_IB1_BIND_TIMESTAMP + 1 - timestamp + now;
+ return ib1_ts_mask + 1 - timestamp + now;
else
return now - timestamp;
}
@@ -442,6 +469,7 @@ static int __mtk_foe_entry_idle_time(str
static void
mtk_flow_entry_update_l2(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
{
+ u32 ib1_ts_mask = mtk_get_ib1_ts_mask(ppe->eth);
struct mtk_flow_entry *cur;
struct mtk_foe_entry *hwe;
struct hlist_node *tmp;
@@ -466,8 +494,8 @@ mtk_flow_entry_update_l2(struct mtk_ppe
continue;
idle = cur_idle;
- entry->data.ib1 &= ~MTK_FOE_IB1_BIND_TIMESTAMP;
- entry->data.ib1 |= hwe->ib1 & MTK_FOE_IB1_BIND_TIMESTAMP;
+ entry->data.ib1 &= ~ib1_ts_mask;
+ entry->data.ib1 |= hwe->ib1 & ib1_ts_mask;
}
}
@@ -489,7 +517,7 @@ mtk_flow_entry_update(struct mtk_ppe *pp
hwe = mtk_foe_get_entry(ppe, entry->hash);
memcpy(&foe, hwe, ppe->eth->soc->foe_entry_size);
- if (!mtk_flow_entry_match(entry, &foe)) {
+ if (!mtk_flow_entry_match(ppe->eth, entry, &foe)) {
entry->hash = 0xffff;
goto out;
}
@@ -504,16 +532,22 @@ static void
__mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_foe_entry *entry,
u16 hash)
{
+ struct mtk_eth *eth = ppe->eth;
+ u16 timestamp = mtk_eth_timestamp(eth);
struct mtk_foe_entry *hwe;
- u16 timestamp;
- timestamp = mtk_eth_timestamp(ppe->eth);
- timestamp &= MTK_FOE_IB1_BIND_TIMESTAMP;
- entry->ib1 &= ~MTK_FOE_IB1_BIND_TIMESTAMP;
- entry->ib1 |= FIELD_PREP(MTK_FOE_IB1_BIND_TIMESTAMP, timestamp);
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) {
+ entry->ib1 &= ~MTK_FOE_IB1_BIND_TIMESTAMP_V2;
+ entry->ib1 |= FIELD_PREP(MTK_FOE_IB1_BIND_TIMESTAMP_V2,
+ timestamp);
+ } else {
+ entry->ib1 &= ~MTK_FOE_IB1_BIND_TIMESTAMP;
+ entry->ib1 |= FIELD_PREP(MTK_FOE_IB1_BIND_TIMESTAMP,
+ timestamp);
+ }
hwe = mtk_foe_get_entry(ppe, hash);
- memcpy(&hwe->data, &entry->data, ppe->eth->soc->foe_entry_size);
+ memcpy(&hwe->data, &entry->data, eth->soc->foe_entry_size);
wmb();
hwe->ib1 = entry->ib1;
@@ -540,8 +574,8 @@ mtk_foe_entry_commit_l2(struct mtk_ppe *
int mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
{
- int type = FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, entry->data.ib1);
const struct mtk_soc_data *soc = ppe->eth->soc;
+ int type = mtk_get_ib1_pkt_type(ppe->eth, entry->data.ib1);
u32 hash;
if (type == MTK_PPE_PKT_TYPE_BRIDGE)
@@ -564,7 +598,7 @@ mtk_foe_entry_commit_subflow(struct mtk_
struct mtk_flow_entry *flow_info;
struct mtk_foe_entry foe = {}, *hwe;
struct mtk_foe_mac_info *l2;
- u32 ib1_mask = MTK_FOE_IB1_PACKET_TYPE | MTK_FOE_IB1_UDP;
+ u32 ib1_mask = mtk_get_ib1_pkt_type_mask(ppe->eth) | MTK_FOE_IB1_UDP;
int type;
flow_info = kzalloc(offsetof(struct mtk_flow_entry, l2_data.end),
@@ -584,16 +618,16 @@ mtk_foe_entry_commit_subflow(struct mtk_
foe.ib1 &= ib1_mask;
foe.ib1 |= entry->data.ib1 & ~ib1_mask;
- l2 = mtk_foe_entry_l2(&foe);
+ l2 = mtk_foe_entry_l2(ppe->eth, &foe);
memcpy(l2, &entry->data.bridge.l2, sizeof(*l2));
- type = FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, foe.ib1);
+ type = mtk_get_ib1_pkt_type(ppe->eth, foe.ib1);
if (type == MTK_PPE_PKT_TYPE_IPV4_HNAPT)
memcpy(&foe.ipv4.new, &foe.ipv4.orig, sizeof(foe.ipv4.new));
else if (type >= MTK_PPE_PKT_TYPE_IPV6_ROUTE_3T && l2->etype == ETH_P_IP)
l2->etype = ETH_P_IPV6;
- *mtk_foe_entry_ib2(&foe) = entry->data.bridge.ib2;
+ *mtk_foe_entry_ib2(ppe->eth, &foe) = entry->data.bridge.ib2;
__mtk_foe_entry_commit(ppe, &foe, hash);
}
@@ -626,7 +660,7 @@ void __mtk_ppe_check_skb(struct mtk_ppe
continue;
}
- if (found || !mtk_flow_entry_match(entry, hwe)) {
+ if (found || !mtk_flow_entry_match(ppe->eth, entry, hwe)) {
if (entry->hash != 0xffff)
entry->hash = 0xffff;
continue;
@@ -771,6 +805,8 @@ void mtk_ppe_start(struct mtk_ppe *ppe)
MTK_PPE_SCAN_MODE_KEEPALIVE_AGE) |
FIELD_PREP(MTK_PPE_TB_CFG_ENTRY_NUM,
MTK_PPE_ENTRIES_SHIFT);
+ if (MTK_HAS_CAPS(ppe->eth->soc->caps, MTK_NETSYS_V2))
+ val |= MTK_PPE_TB_CFG_INFO_SEL;
ppe_w32(ppe, MTK_PPE_TB_CFG, val);
ppe_w32(ppe, MTK_PPE_IP_PROTO_CHK,
@@ -778,15 +814,21 @@ void mtk_ppe_start(struct mtk_ppe *ppe)
mtk_ppe_cache_enable(ppe, true);
- val = MTK_PPE_FLOW_CFG_IP4_TCP_FRAG |
- MTK_PPE_FLOW_CFG_IP4_UDP_FRAG |
- MTK_PPE_FLOW_CFG_IP6_3T_ROUTE |
+ val = MTK_PPE_FLOW_CFG_IP6_3T_ROUTE |
MTK_PPE_FLOW_CFG_IP6_5T_ROUTE |
MTK_PPE_FLOW_CFG_IP6_6RD |
MTK_PPE_FLOW_CFG_IP4_NAT |
MTK_PPE_FLOW_CFG_IP4_NAPT |
MTK_PPE_FLOW_CFG_IP4_DSLITE |
MTK_PPE_FLOW_CFG_IP4_NAT_FRAG;
+ if (MTK_HAS_CAPS(ppe->eth->soc->caps, MTK_NETSYS_V2))
+ val |= MTK_PPE_MD_TOAP_BYP_CRSN0 |
+ MTK_PPE_MD_TOAP_BYP_CRSN1 |
+ MTK_PPE_MD_TOAP_BYP_CRSN2 |
+ MTK_PPE_FLOW_CFG_IP4_HASH_GRE_KEY;
+ else
+ val |= MTK_PPE_FLOW_CFG_IP4_TCP_FRAG |
+ MTK_PPE_FLOW_CFG_IP4_UDP_FRAG;
ppe_w32(ppe, MTK_PPE_FLOW_CFG, val);
val = FIELD_PREP(MTK_PPE_UNBIND_AGE_MIN_PACKETS, 1000) |
@@ -820,6 +862,11 @@ void mtk_ppe_start(struct mtk_ppe *ppe)
ppe_w32(ppe, MTK_PPE_GLO_CFG, val);
ppe_w32(ppe, MTK_PPE_DEFAULT_CPU_PORT, 0);
+
+ if (MTK_HAS_CAPS(ppe->eth->soc->caps, MTK_NETSYS_V2)) {
+ ppe_w32(ppe, MTK_PPE_DEFAULT_CPU_PORT1, 0xcb777);
+ ppe_w32(ppe, MTK_PPE_SBW_CTRL, 0x7f);
+ }
}
int mtk_ppe_stop(struct mtk_ppe *ppe)
--- a/drivers/net/ethernet/mediatek/mtk_ppe.h
+++ b/drivers/net/ethernet/mediatek/mtk_ppe.h
@@ -32,6 +32,15 @@
#define MTK_FOE_IB1_UDP BIT(30)
#define MTK_FOE_IB1_STATIC BIT(31)
+/* CONFIG_MEDIATEK_NETSYS_V2 */
+#define MTK_FOE_IB1_BIND_TIMESTAMP_V2 GENMASK(7, 0)
+#define MTK_FOE_IB1_BIND_VLAN_LAYER_V2 GENMASK(16, 14)
+#define MTK_FOE_IB1_BIND_PPPOE_V2 BIT(17)
+#define MTK_FOE_IB1_BIND_VLAN_TAG_V2 BIT(18)
+#define MTK_FOE_IB1_BIND_CACHE_V2 BIT(20)
+#define MTK_FOE_IB1_BIND_TTL_V2 BIT(22)
+#define MTK_FOE_IB1_PACKET_TYPE_V2 GENMASK(27, 23)
+
enum {
MTK_PPE_PKT_TYPE_IPV4_HNAPT = 0,
MTK_PPE_PKT_TYPE_IPV4_ROUTE = 1,
@@ -53,14 +62,25 @@ enum {
#define MTK_FOE_IB2_PORT_MG GENMASK(17, 12)
+#define MTK_FOE_IB2_RX_IDX GENMASK(18, 17)
#define MTK_FOE_IB2_PORT_AG GENMASK(23, 18)
#define MTK_FOE_IB2_DSCP GENMASK(31, 24)
+/* CONFIG_MEDIATEK_NETSYS_V2 */
+#define MTK_FOE_IB2_PORT_MG_V2 BIT(7)
+#define MTK_FOE_IB2_DEST_PORT_V2 GENMASK(12, 9)
+#define MTK_FOE_IB2_MULTICAST_V2 BIT(13)
+#define MTK_FOE_IB2_WDMA_WINFO_V2 BIT(19)
+#define MTK_FOE_IB2_PORT_AG_V2 GENMASK(23, 20)
+
#define MTK_FOE_VLAN2_WINFO_BSS GENMASK(5, 0)
#define MTK_FOE_VLAN2_WINFO_WCID GENMASK(13, 6)
#define MTK_FOE_VLAN2_WINFO_RING GENMASK(15, 14)
+#define MTK_FOE_WINFO_BSS GENMASK(5, 0)
+#define MTK_FOE_WINFO_WCID GENMASK(15, 6)
+
enum {
MTK_FOE_STATE_INVALID,
MTK_FOE_STATE_UNBIND,
@@ -81,6 +101,9 @@ struct mtk_foe_mac_info {
u16 pppoe_id;
u16 src_mac_lo;
+
+ u16 minfo;
+ u16 winfo;
};
/* software-only entry type */
@@ -198,7 +221,7 @@ struct mtk_foe_entry {
struct mtk_foe_ipv4_dslite dslite;
struct mtk_foe_ipv6 ipv6;
struct mtk_foe_ipv6_6rd ipv6_6rd;
- u32 data[19];
+ u32 data[23];
};
};
@@ -306,20 +329,27 @@ mtk_ppe_check_skb(struct mtk_ppe *ppe, s
__mtk_ppe_check_skb(ppe, skb, hash);
}
-int mtk_foe_entry_prepare(struct mtk_foe_entry *entry, int type, int l4proto,
- u8 pse_port, u8 *src_mac, u8 *dest_mac);
-int mtk_foe_entry_set_pse_port(struct mtk_foe_entry *entry, u8 port);
-int mtk_foe_entry_set_ipv4_tuple(struct mtk_foe_entry *entry, bool orig,
+int mtk_foe_entry_prepare(struct mtk_eth *eth, struct mtk_foe_entry *entry,
+ int type, int l4proto, u8 pse_port, u8 *src_mac,
+ u8 *dest_mac);
+int mtk_foe_entry_set_pse_port(struct mtk_eth *eth,
+ struct mtk_foe_entry *entry, u8 port);
+int mtk_foe_entry_set_ipv4_tuple(struct mtk_eth *eth,
+ struct mtk_foe_entry *entry, bool orig,
__be32 src_addr, __be16 src_port,
__be32 dest_addr, __be16 dest_port);
-int mtk_foe_entry_set_ipv6_tuple(struct mtk_foe_entry *entry,
+int mtk_foe_entry_set_ipv6_tuple(struct mtk_eth *eth,
+ struct mtk_foe_entry *entry,
__be32 *src_addr, __be16 src_port,
__be32 *dest_addr, __be16 dest_port);
-int mtk_foe_entry_set_dsa(struct mtk_foe_entry *entry, int port);
-int mtk_foe_entry_set_vlan(struct mtk_foe_entry *entry, int vid);
-int mtk_foe_entry_set_pppoe(struct mtk_foe_entry *entry, int sid);
-int mtk_foe_entry_set_wdma(struct mtk_foe_entry *entry, int wdma_idx, int txq,
- int bss, int wcid);
+int mtk_foe_entry_set_dsa(struct mtk_eth *eth, struct mtk_foe_entry *entry,
+ int port);
+int mtk_foe_entry_set_vlan(struct mtk_eth *eth, struct mtk_foe_entry *entry,
+ int vid);
+int mtk_foe_entry_set_pppoe(struct mtk_eth *eth, struct mtk_foe_entry *entry,
+ int sid);
+int mtk_foe_entry_set_wdma(struct mtk_eth *eth, struct mtk_foe_entry *entry,
+ int wdma_idx, int txq, int bss, int wcid);
int mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_flow_entry *entry);
void mtk_foe_entry_clear(struct mtk_ppe *ppe, struct mtk_flow_entry *entry);
int mtk_foe_entry_idle_time(struct mtk_ppe *ppe, struct mtk_flow_entry *entry);
--- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
+++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
@@ -52,18 +52,19 @@ static const struct rhashtable_params mt
};
static int
-mtk_flow_set_ipv4_addr(struct mtk_foe_entry *foe, struct mtk_flow_data *data,
- bool egress)
+mtk_flow_set_ipv4_addr(struct mtk_eth *eth, struct mtk_foe_entry *foe,
+ struct mtk_flow_data *data, bool egress)
{
- return mtk_foe_entry_set_ipv4_tuple(foe, egress,
+ return mtk_foe_entry_set_ipv4_tuple(eth, foe, egress,
data->v4.src_addr, data->src_port,
data->v4.dst_addr, data->dst_port);
}
static int
-mtk_flow_set_ipv6_addr(struct mtk_foe_entry *foe, struct mtk_flow_data *data)
+mtk_flow_set_ipv6_addr(struct mtk_eth *eth, struct mtk_foe_entry *foe,
+ struct mtk_flow_data *data)
{
- return mtk_foe_entry_set_ipv6_tuple(foe,
+ return mtk_foe_entry_set_ipv6_tuple(eth, foe,
data->v6.src_addr.s6_addr32, data->src_port,
data->v6.dst_addr.s6_addr32, data->dst_port);
}
@@ -190,16 +191,29 @@ mtk_flow_set_output_device(struct mtk_et
int pse_port, dsa_port;
if (mtk_flow_get_wdma_info(dev, dest_mac, &info) == 0) {
- mtk_foe_entry_set_wdma(foe, info.wdma_idx, info.queue, info.bss,
- info.wcid);
- pse_port = 3;
+ mtk_foe_entry_set_wdma(eth, foe, info.wdma_idx, info.queue,
+ info.bss, info.wcid);
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) {
+ switch (info.wdma_idx) {
+ case 0:
+ pse_port = 8;
+ break;
+ case 1:
+ pse_port = 9;
+ break;
+ default:
+ return -EINVAL;
+ }
+ } else {
+ pse_port = 3;
+ }
*wed_index = info.wdma_idx;
goto out;
}
dsa_port = mtk_flow_get_dsa_port(&dev);
if (dsa_port >= 0)
- mtk_foe_entry_set_dsa(foe, dsa_port);
+ mtk_foe_entry_set_dsa(eth, foe, dsa_port);
if (dev == eth->netdev[0])
pse_port = 1;
@@ -209,7 +223,7 @@ mtk_flow_set_output_device(struct mtk_et
return -EOPNOTSUPP;
out:
- mtk_foe_entry_set_pse_port(foe, pse_port);
+ mtk_foe_entry_set_pse_port(eth, foe, pse_port);
return 0;
}
@@ -333,9 +347,8 @@ mtk_flow_offload_replace(struct mtk_eth
!is_valid_ether_addr(data.eth.h_dest))
return -EINVAL;
- err = mtk_foe_entry_prepare(&foe, offload_type, l4proto, 0,
- data.eth.h_source,
- data.eth.h_dest);
+ err = mtk_foe_entry_prepare(eth, &foe, offload_type, l4proto, 0,
+ data.eth.h_source, data.eth.h_dest);
if (err)
return err;
@@ -360,7 +373,7 @@ mtk_flow_offload_replace(struct mtk_eth
data.v4.src_addr = addrs.key->src;
data.v4.dst_addr = addrs.key->dst;
- mtk_flow_set_ipv4_addr(&foe, &data, false);
+ mtk_flow_set_ipv4_addr(eth, &foe, &data, false);
}
if (addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) {
@@ -371,7 +384,7 @@ mtk_flow_offload_replace(struct mtk_eth
data.v6.src_addr = addrs.key->src;
data.v6.dst_addr = addrs.key->dst;
- mtk_flow_set_ipv6_addr(&foe, &data);
+ mtk_flow_set_ipv6_addr(eth, &foe, &data);
}
flow_action_for_each(i, act, &rule->action) {
@@ -401,7 +414,7 @@ mtk_flow_offload_replace(struct mtk_eth
}
if (addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) {
- err = mtk_flow_set_ipv4_addr(&foe, &data, true);
+ err = mtk_flow_set_ipv4_addr(eth, &foe, &data, true);
if (err)
return err;
}
@@ -413,10 +426,10 @@ mtk_flow_offload_replace(struct mtk_eth
if (data.vlan.proto != htons(ETH_P_8021Q))
return -EOPNOTSUPP;
- mtk_foe_entry_set_vlan(&foe, data.vlan.id);
+ mtk_foe_entry_set_vlan(eth, &foe, data.vlan.id);
}
if (data.pppoe.num == 1)
- mtk_foe_entry_set_pppoe(&foe, data.pppoe.sid);
+ mtk_foe_entry_set_pppoe(eth, &foe, data.pppoe.sid);
err = mtk_flow_set_output_device(eth, &foe, odev, data.eth.h_dest,
&wed_index);
--- a/drivers/net/ethernet/mediatek/mtk_ppe_regs.h
+++ b/drivers/net/ethernet/mediatek/mtk_ppe_regs.h
@@ -21,6 +21,9 @@
#define MTK_PPE_GLO_CFG_BUSY BIT(31)
#define MTK_PPE_FLOW_CFG 0x204
+#define MTK_PPE_MD_TOAP_BYP_CRSN0 BIT(1)
+#define MTK_PPE_MD_TOAP_BYP_CRSN1 BIT(2)
+#define MTK_PPE_MD_TOAP_BYP_CRSN2 BIT(3)
#define MTK_PPE_FLOW_CFG_IP4_TCP_FRAG BIT(6)
#define MTK_PPE_FLOW_CFG_IP4_UDP_FRAG BIT(7)
#define MTK_PPE_FLOW_CFG_IP6_3T_ROUTE BIT(8)
@@ -54,6 +57,7 @@
#define MTK_PPE_TB_CFG_HASH_MODE GENMASK(15, 14)
#define MTK_PPE_TB_CFG_SCAN_MODE GENMASK(17, 16)
#define MTK_PPE_TB_CFG_HASH_DEBUG GENMASK(19, 18)
+#define MTK_PPE_TB_CFG_INFO_SEL BIT(20)
enum {
MTK_PPE_SCAN_MODE_DISABLED,
@@ -112,6 +116,8 @@ enum {
#define MTK_PPE_DEFAULT_CPU_PORT 0x248
#define MTK_PPE_DEFAULT_CPU_PORT_MASK(_n) (GENMASK(2, 0) << ((_n) * 4))
+#define MTK_PPE_DEFAULT_CPU_PORT1 0x24c
+
#define MTK_PPE_MTU_DROP 0x308
#define MTK_PPE_VLAN_MTU0 0x30c
@@ -141,4 +147,6 @@ enum {
#define MTK_PPE_MIB_CACHE_CTL_EN BIT(0)
#define MTK_PPE_MIB_CACHE_CTL_FLUSH BIT(2)
+#define MTK_PPE_SBW_CTRL 0x374
+
#endif

26
target/linux/generic/pending-5.15/799-net-ethernet-mtk_eth_soc-enable-flow-offloading-supp.patch Normal file
View File

@ -0,0 +1,26 @@
From b94b02a270471337bef73c44fa3493a521e31a61 Mon Sep 17 00:00:00 2001
Message-Id: <b94b02a270471337bef73c44fa3493a521e31a61.1662886034.git.lorenzo@kernel.org>
In-Reply-To: <e5ecb4f619197b93fa682d722452dc8412864cdb.1662886033.git.lorenzo@kernel.org>
References: <e5ecb4f619197b93fa682d722452dc8412864cdb.1662886033.git.lorenzo@kernel.org>
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Mon, 5 Sep 2022 13:56:13 +0200
Subject: [PATCH net-next 5/5] net: ethernet: mtk_eth_soc: enable flow
offloading support for mt7986
Enable hw packet engine and wireless packet dispatcher for mt7986
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -4258,6 +4258,7 @@ static const struct mtk_soc_data mt7986_
.hw_features = MTK_HW_FEATURES,
.required_clks = MT7986_CLKS_BITMAP,
.required_pctl = false,
+ .offload_version = 2,
.hash_offset = 4,
.foe_entry_size = sizeof(struct mtk_foe_entry),
.txrx = {

24
target/linux/mediatek/files-5.15/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
View File

@ -397,6 +397,28 @@
#reset-cells = <1>; #reset-cells = <1>;
}; };
wed_pcie: wed-pcie@10003000 {
compatible = "mediatek,mt7986-wed-pcie",
"syscon";
reg = <0 0x10003000 0 0x10>;
};
wed0: wed@15010000 {
compatible = "mediatek,mt7986-wed",
"syscon";
reg = <0 0x15010000 0 0x1000>;
interrupt-parent = <&gic>;
interrupts = <GIC_SPI 205 IRQ_TYPE_LEVEL_HIGH>;
};
wed1: wed@15011000 {
compatible = "mediatek,mt7986-wed",
"syscon";
reg = <0 0x15011000 0 0x1000>;
interrupt-parent = <&gic>;
interrupts = <GIC_SPI 206 IRQ_TYPE_LEVEL_HIGH>;
};
eth: ethernet@15100000 { eth: ethernet@15100000 {
compatible = "mediatek,mt7986-eth"; compatible = "mediatek,mt7986-eth";
reg = <0 0x15100000 0 0x80000>; reg = <0 0x15100000 0 0x80000>;
@ -431,6 +453,8 @@
<&apmixedsys CLK_APMIXED_SGMPLL>; <&apmixedsys CLK_APMIXED_SGMPLL>;
mediatek,ethsys = <&ethsys>; mediatek,ethsys = <&ethsys>;
mediatek,sgmiisys = <&sgmiisys0>, <&sgmiisys1>; mediatek,sgmiisys = <&sgmiisys0>, <&sgmiisys1>;
mediatek,wed-pcie = <&wed_pcie>;
mediatek,wed = <&wed0>, <&wed1>;
#reset-cells = <1>; #reset-cells = <1>;
#address-cells = <1>; #address-cells = <1>;
#size-cells = <0>; #size-cells = <0>;

2
target/linux/mediatek/patches-5.15/510-net-mediatek-add-flow-offload-for-mt7623.patch
View File

@ -14,7 +14,7 @@ Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -3639,6 +3639,7 @@ static const struct mtk_soc_data mt2701_ @@ -4166,6 +4166,7 @@ static const struct mtk_soc_data mt2701_
.hw_features = MTK_HW_FEATURES, .hw_features = MTK_HW_FEATURES,
.required_clks = MT7623_CLKS_BITMAP, .required_clks = MT7623_CLKS_BITMAP,
.required_pctl = true, .required_pctl = true,

8
target/linux/mediatek/patches-5.15/703-v5.17-net-ethernet-mtk_eth_soc-implement-Clause-45-MDIO-ac.patch
View File

@ -20,7 +20,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -196,13 +196,35 @@ static int _mtk_mdio_write(struct mtk_et @@ -219,13 +219,35 @@ static int _mtk_mdio_write(struct mtk_et
if (ret < 0) if (ret < 0)
return ret; return ret;
@ -63,7 +63,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
ret = mtk_mdio_busy_wait(eth); ret = mtk_mdio_busy_wait(eth);
if (ret < 0) if (ret < 0)
@@ -219,12 +241,33 @@ static int _mtk_mdio_read(struct mtk_eth @@ -242,12 +264,33 @@ static int _mtk_mdio_read(struct mtk_eth
if (ret < 0) if (ret < 0)
return ret; return ret;
@ -103,7 +103,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
ret = mtk_mdio_busy_wait(eth); ret = mtk_mdio_busy_wait(eth);
if (ret < 0) if (ret < 0)
@@ -621,6 +664,7 @@ static int mtk_mdio_init(struct mtk_eth @@ -644,6 +687,7 @@ static int mtk_mdio_init(struct mtk_eth
eth->mii_bus->name = "mdio"; eth->mii_bus->name = "mdio";
eth->mii_bus->read = mtk_mdio_read; eth->mii_bus->read = mtk_mdio_read;
eth->mii_bus->write = mtk_mdio_write; eth->mii_bus->write = mtk_mdio_write;
@ -113,7 +113,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -327,9 +327,12 @@ @@ -330,9 +330,12 @@
#define PHY_IAC_ADDR_MASK GENMASK(24, 20) #define PHY_IAC_ADDR_MASK GENMASK(24, 20)
#define PHY_IAC_ADDR(x) FIELD_PREP(PHY_IAC_ADDR_MASK, (x)) #define PHY_IAC_ADDR(x) FIELD_PREP(PHY_IAC_ADDR_MASK, (x))
#define PHY_IAC_CMD_MASK GENMASK(19, 18) #define PHY_IAC_CMD_MASK GENMASK(19, 18)

4
target/linux/ramips/patches-5.15/700-net-ethernet-mediatek-support-net-labels.patch
View File

@ -14,7 +14,7 @@ Signed-off-by: René van Dorst <opensource@vdorst.com>
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -3230,6 +3230,7 @@ static const struct net_device_ops mtk_n @@ -3736,6 +3736,7 @@ static const struct net_device_ops mtk_n
static int mtk_add_mac(struct mtk_eth *eth, struct device_node *np) static int mtk_add_mac(struct mtk_eth *eth, struct device_node *np)
{ {
@ -22,7 +22,7 @@ Signed-off-by: René van Dorst <opensource@vdorst.com>
const __be32 *_id = of_get_property(np, "reg", NULL); const __be32 *_id = of_get_property(np, "reg", NULL);
phy_interface_t phy_mode; phy_interface_t phy_mode;
struct phylink *phylink; struct phylink *phylink;
@@ -3349,6 +3350,9 @@ static int mtk_add_mac(struct mtk_eth *e @@ -3855,6 +3856,9 @@ static int mtk_add_mac(struct mtk_eth *e
else else
eth->netdev[id]->max_mtu = MTK_MAX_RX_LENGTH_2K - MTK_RX_ETH_HLEN; eth->netdev[id]->max_mtu = MTK_MAX_RX_LENGTH_2K - MTK_RX_ETH_HLEN;