bmips target is now more stable and it's time to start generating buildbot
images in order to receive a wider testing, which will be essential to replace
bcm63xx target in the future.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
BMIPS is a generic arch that can be used for multiple Broadcom SoCs, each one
with its own specific drivers, so instead of having a huge kernel supporting
all of them, let's switch to a subtarget per SoC like other OpenWrt targets.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Add BCM6328 and BCM6358 LED kernel modules.
This allows selecting the LED controllers only for those devices using them.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Sercomm SHG2500 is a BCM63168 with 128M of RAM, 256M of NAND, an external
BCM53124S switch for the LAN ports and internal/external Broadcom wifi.
LEDs are connected to an external MSP430G2513 MCU controlled via SPI.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Make use of sercomm-pid script for generating the Sercomm PID, which avoids
having to add an array of hex bytes for every new Sercomm device.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
SERCOMM_VERSION is ambiguous and it should be more clear that it refers to the
version used for the filesystem.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
This enables the HW Random Number Generator on the BCM6362 and BCM63268 SoCs,
which is the same one used on BCM6368 SoC.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Register the ethernet driver from iudma, which avoids the attempt to probe the
emac driver before iudma and its consequent deferral.
The ethernet driver can't work without iudma anyway.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
We should ensure that the PHY is properly configured.
This is specially needed in devices using the internal PHY for ethernet0.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
The MDIO bus is supported but there are errors when trying to probe and
configure the external BCM5325E switch through B53 DSA.
Therefore, let's add basic ethernet (but working) support for now.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
The current implementation of bcm6368-enetsw is a mess of dev, ndev and kdev
variables, which have refer to different things depending on the function.
This commit harmonizes it and resolves the issue.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Sercomm H500-s has a Quantenna SoC for external wifi which can be activated or
deactivated through GPIO #20.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Sercomm H500-s devices don't need the JFFS2 cleanmarkers as opposed to the
other bmips NAND devices.
Fixes: 6df12200d9 ("bmips: add support for Sercomm H-500s")
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
These patches have now received a positive review upstream, so let's add them
to pending patches.
776-net-dsa-b53-mmap-add-phy-ops.patch:
This is mostly bmips/bcm63xx-specific to get external switches working
without hanging the device when accessing certain registers.
777-net-dsa-b53-mdio-add-support-for-BCM53134:
This adds support for BCM53134 switch on DSA B53, so any target using DSA B53
can benefit from it.
Also fix sercomm-h500-s external switch IMP port phy-mode.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Sercomm H-500s is a BCM63268 with 128M, internal and external (Quantenna) wifi
and external BCM53134S switch.
This device is already supported in bcm63xx target, so more information can be
found in https://openwrt.org/toh/sercomm/h500-s.
It's a perfect example of a device with internal and external switch
coexistance since most devices only have ports on one of the switches but not
both of them.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
bcm63268-timer-clocks have been sent upstream with a positive review, so let's
add them to pending v5.15.
Also add devm_clk_hw_register_gate() patch from v5.17 to backports since it's
needed for upstream bcm63268-timer-clocks patches.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Fixes the following warnings for Netgear DGND3700v2 and Comtrend VR-3032u:
[ 1.059540] 7 fixed-partitions partitions found on MTD device brcmnand.0
[ 1.066570] OF: Bad cell count for /ubus/nand@10000200/nandcs@0/partitions
[ 1.073766] OF: Bad cell count for /ubus/nand@10000200/nandcs@0/partitions
[ 1.081927] OF: Bad cell count for /ubus/nand@10000200/nandcs@0/partitions
[ 1.089128] OF: Bad cell count for /ubus/nand@10000200/nandcs@0/partitions
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Huawei HG253s v2 is a BCM6362 with 128M RAM, internal wifi and external
BCM53124S switch.
This device is already supported in bcm63xx target, so more information can be
found in https://openwrt.org/toh/huawei/hg253s_v2.
It's a perfect example of a device with internal and external switch
coexistance since most devices only have ports on one of the switches but not
both of them.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
The Netgear DGND3700v2 has an external BCM53125 switch which can now be enabled
as a DSA disjoint switch tree setup.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Without this change, internal and external B53 switches couldn't coexist as
reported in https://github.com/openwrt/openwrt/issues/10313.
In order to fix this we need to force the B53 MMAP DSA switch driver to use
bcm6368-mdio-mux for accessing the PHY registers instead of its own phy_read()
and phy_write() functions.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Add new patch sent upstream for requesting the memory region in the bcm6345-l1
interrupt controller.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
This reverts commit dc0de05e10.
As pointed out by @BKPepe and @arinc9 this was removed by 9df035b since it
isn't needed.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
NAPI poll() function may be passed a budget value of zero, i.e. during
netpoll, which isn't NAPI context.
Therefore, napi_consume_skb() must be given budget value instead of
!force to truly discern netpoll-like scenarios.
https://lore.kernel.org/netdev/20220707141056.2644-1-liew.s.piaw@gmail.com/t/#m470f5c20225e76fb08c44d6cfa2f1b739ffaaea4
Signed-off-by: Sieng-Piaw Liew <liew.s.piaw@gmail.com>
[improve code format]
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Use existing rx processed count to track against budget, thereby making
budget decrement operation redundant.
rx_desc_count can be calculated outside the rx loop, making the loop a
bit smaller.
Signed-off-by: Sieng Piaw Liew <liew.s.piaw@gmail.com>
napi_build_skb() reuses NAPI skbuff_head cache in order to save some
cycles on freeing/allocating skbuff_heads on every new rx or completed
tx.
Use napi_consume_skb() to feed the cache with skbuff_heads of completed
tx so it's never empty.
Signed-off-by: Sieng Piaw Liew <liew.s.piaw@gmail.com>
Check if we're in NAPI context when refilling rx. Normally we're almost
always running in NAPI context. Dispatch to napi_alloc_frag() directly
instead of relying on netdev_alloc_frag() which does the same but with
the overhead of local_bh_disable/enable.
Signed-off-by: Sieng Piaw Liew <liew.s.piaw@gmail.com>
[improve code format]
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
We can increase the efficiency of rx path by using buffers to receive
packets then build SKBs around them just before passing into the network
stack. In contrast, preallocating SKBs too early reduces CPU cache
efficiency.
Performance is slightly increased but the changes allow more
potential optimizations.
Signed-off-by: Sieng Piaw Liew <liew.s.piaw@gmail.com>
[improve code format]
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
bmips is using Broadcom B53 DSA driver which means the ethernet driver
must compensate for 6 bytes tags from the internal switch.
This means using NET_IP_ALIGN actually misaligns the skb, lowering
performance significantly. Therefore napi_alloc_skb() which uses
NET_IP_ALIGN is changed to netdev_alloc_skb().
Performance in iperf3 is increased from ~47Mbps to 52Mbps.
Signed-off-by: Sieng Piaw Liew <liew.s.piaw@gmail.com>
Endianness depends on CPU architecture. CONFIG_CPU_(BIG/LITTLE)_ENDIAN should
be enabled on target or subtarget based on SoC architecture.
Fixes warning:
$ make kernel_oldconfig CONFIG_TARGET=subtarget
...
.config:1008:warning: override: CPU_LITTLE_ENDIAN changes choice state
....
Summary:
- ARC - only the CONFIG_CPU_BIG_ENDIAN symbol is defined for this architeture.
If it is disabled then the processor operates in LITTLE_ENDIAN mode (default),
- ARM32 - CONFIG_CPU_LITTLE_ENDIAN symbol available since kernel 5.19. This
option should be enabled after OpenWRT moves to kernel 6.x. After refreshing
the kernel, the symbol disappears,
- ARM64 - enabled CONFIG_CPU_LITTLE_ENDIAN,
- MIPS - enabled relevant symbols,
- POWERPC - enabled CONFIG_CPU_BIG_ENDIAN,
- UML - Symbols are not defined for this architecture,
- X86 - always little endian. Symbols are not defined for this architecture.
Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
