realtek: Packet Inspection Engine support for RTL839x SoCs

Adds the RTL839x-specific PIE support routines.

Signed-off-by: Birger Koblitz <git@birger-koblitz.de>
This commit is contained in:
Birger Koblitz 2021-09-07 18:51:10 +02:00 committed by John Crispin
parent 87b3bd07a4
commit 2d8d81fe28

View File

@ -6,6 +6,104 @@
extern struct mutex smi_lock; extern struct mutex smi_lock;
extern struct rtl83xx_soc_info soc_info; extern struct rtl83xx_soc_info soc_info;
/* Definition of the RTL839X-specific template field IDs as used in the PIE */
enum template_field_id {
TEMPLATE_FIELD_SPMMASK = 0,
TEMPLATE_FIELD_SPM0 = 1, // Source portmask ports 0-15
TEMPLATE_FIELD_SPM1 = 2, // Source portmask ports 16-31
TEMPLATE_FIELD_SPM2 = 3, // Source portmask ports 32-47
TEMPLATE_FIELD_SPM3 = 4, // Source portmask ports 48-56
TEMPLATE_FIELD_DMAC0 = 5, // Destination MAC [15:0]
TEMPLATE_FIELD_DMAC1 = 6, // Destination MAC [31:16]
TEMPLATE_FIELD_DMAC2 = 7, // Destination MAC [47:32]
TEMPLATE_FIELD_SMAC0 = 8, // Source MAC [15:0]
TEMPLATE_FIELD_SMAC1 = 9, // Source MAC [31:16]
TEMPLATE_FIELD_SMAC2 = 10, // Source MAC [47:32]
TEMPLATE_FIELD_ETHERTYPE = 11, // Ethernet frame type field
// Field-ID 12 is not used
TEMPLATE_FIELD_OTAG = 13,
TEMPLATE_FIELD_ITAG = 14,
TEMPLATE_FIELD_SIP0 = 15,
TEMPLATE_FIELD_SIP1 = 16,
TEMPLATE_FIELD_DIP0 = 17,
TEMPLATE_FIELD_DIP1 = 18,
TEMPLATE_FIELD_IP_TOS_PROTO = 19,
TEMPLATE_FIELD_IP_FLAG = 20,
TEMPLATE_FIELD_L4_SPORT = 21,
TEMPLATE_FIELD_L4_DPORT = 22,
TEMPLATE_FIELD_L34_HEADER = 23,
TEMPLATE_FIELD_ICMP_IGMP = 24,
TEMPLATE_FIELD_VID_RANG0 = 25,
TEMPLATE_FIELD_VID_RANG1 = 26,
TEMPLATE_FIELD_L4_PORT_RANG = 27,
TEMPLATE_FIELD_FIELD_SELECTOR_VALID = 28,
TEMPLATE_FIELD_FIELD_SELECTOR_0 = 29,
TEMPLATE_FIELD_FIELD_SELECTOR_1 = 30,
TEMPLATE_FIELD_FIELD_SELECTOR_2 = 31,
TEMPLATE_FIELD_FIELD_SELECTOR_3 = 32,
TEMPLATE_FIELD_FIELD_SELECTOR_4 = 33,
TEMPLATE_FIELD_FIELD_SELECTOR_5 = 34,
TEMPLATE_FIELD_SIP2 = 35,
TEMPLATE_FIELD_SIP3 = 36,
TEMPLATE_FIELD_SIP4 = 37,
TEMPLATE_FIELD_SIP5 = 38,
TEMPLATE_FIELD_SIP6 = 39,
TEMPLATE_FIELD_SIP7 = 40,
TEMPLATE_FIELD_OLABEL = 41,
TEMPLATE_FIELD_ILABEL = 42,
TEMPLATE_FIELD_OILABEL = 43,
TEMPLATE_FIELD_DPMMASK = 44,
TEMPLATE_FIELD_DPM0 = 45,
TEMPLATE_FIELD_DPM1 = 46,
TEMPLATE_FIELD_DPM2 = 47,
TEMPLATE_FIELD_DPM3 = 48,
TEMPLATE_FIELD_L2DPM0 = 49,
TEMPLATE_FIELD_L2DPM1 = 50,
TEMPLATE_FIELD_L2DPM2 = 51,
TEMPLATE_FIELD_L2DPM3 = 52,
TEMPLATE_FIELD_IVLAN = 53,
TEMPLATE_FIELD_OVLAN = 54,
TEMPLATE_FIELD_FWD_VID = 55,
TEMPLATE_FIELD_DIP2 = 56,
TEMPLATE_FIELD_DIP3 = 57,
TEMPLATE_FIELD_DIP4 = 58,
TEMPLATE_FIELD_DIP5 = 59,
TEMPLATE_FIELD_DIP6 = 60,
TEMPLATE_FIELD_DIP7 = 61,
};
// Number of fixed templates predefined in the SoC
#define N_FIXED_TEMPLATES 5
static enum template_field_id fixed_templates[N_FIXED_TEMPLATES][N_FIXED_FIELDS] =
{
{
TEMPLATE_FIELD_SPM0, TEMPLATE_FIELD_SPM1, TEMPLATE_FIELD_ITAG,
TEMPLATE_FIELD_SMAC0, TEMPLATE_FIELD_SMAC1, TEMPLATE_FIELD_SMAC2,
TEMPLATE_FIELD_DMAC0, TEMPLATE_FIELD_DMAC1, TEMPLATE_FIELD_DMAC2,
TEMPLATE_FIELD_ETHERTYPE, TEMPLATE_FIELD_SPM2, TEMPLATE_FIELD_SPM3
}, {
TEMPLATE_FIELD_SIP0, TEMPLATE_FIELD_SIP1, TEMPLATE_FIELD_DIP0,
TEMPLATE_FIELD_DIP1,TEMPLATE_FIELD_IP_TOS_PROTO, TEMPLATE_FIELD_L4_SPORT,
TEMPLATE_FIELD_L4_DPORT, TEMPLATE_FIELD_ICMP_IGMP, TEMPLATE_FIELD_SPM0,
TEMPLATE_FIELD_SPM1, TEMPLATE_FIELD_SPM2, TEMPLATE_FIELD_SPM3
}, {
TEMPLATE_FIELD_DMAC0, TEMPLATE_FIELD_DMAC1, TEMPLATE_FIELD_DMAC2,
TEMPLATE_FIELD_ITAG, TEMPLATE_FIELD_ETHERTYPE, TEMPLATE_FIELD_IP_TOS_PROTO,
TEMPLATE_FIELD_L4_DPORT, TEMPLATE_FIELD_L4_SPORT, TEMPLATE_FIELD_SIP0,
TEMPLATE_FIELD_SIP1, TEMPLATE_FIELD_DIP0, TEMPLATE_FIELD_DIP1
}, {
TEMPLATE_FIELD_DIP0, TEMPLATE_FIELD_DIP1, TEMPLATE_FIELD_DIP2,
TEMPLATE_FIELD_DIP3, TEMPLATE_FIELD_DIP4, TEMPLATE_FIELD_DIP5,
TEMPLATE_FIELD_DIP6, TEMPLATE_FIELD_DIP7, TEMPLATE_FIELD_L4_DPORT,
TEMPLATE_FIELD_L4_SPORT, TEMPLATE_FIELD_ICMP_IGMP, TEMPLATE_FIELD_IP_TOS_PROTO
}, {
TEMPLATE_FIELD_SIP0, TEMPLATE_FIELD_SIP1, TEMPLATE_FIELD_SIP2,
TEMPLATE_FIELD_SIP3, TEMPLATE_FIELD_SIP4, TEMPLATE_FIELD_SIP5,
TEMPLATE_FIELD_SIP6, TEMPLATE_FIELD_SIP7, TEMPLATE_FIELD_SPM0,
TEMPLATE_FIELD_SPM1, TEMPLATE_FIELD_SPM2, TEMPLATE_FIELD_SPM3
},
};
void rtl839x_print_matrix(void) void rtl839x_print_matrix(void)
{ {
volatile u64 *ptr9; volatile u64 *ptr9;
@ -739,6 +837,776 @@ static void rtl839x_init_eee(struct rtl838x_switch_priv *priv, bool enable)
priv->eee_enabled = enable; priv->eee_enabled = enable;
} }
static void rtl839x_pie_lookup_enable(struct rtl838x_switch_priv *priv, int index)
{
int block = index / PIE_BLOCK_SIZE;
sw_w32_mask(0, BIT(block), RTL839X_ACL_BLK_LOOKUP_CTRL);
}
/*
* Delete a range of Packet Inspection Engine rules
*/
static int rtl839x_pie_rule_del(struct rtl838x_switch_priv *priv, int index_from, int index_to)
{
u32 v = (index_from << 1)| (index_to << 13 ) | BIT(0);
pr_debug("%s: from %d to %d\n", __func__, index_from, index_to);
mutex_lock(&priv->reg_mutex);
// Write from-to and execute bit into control register
sw_w32(v, RTL839X_ACL_CLR_CTRL);
// Wait until command has completed
do {
} while (sw_r32(RTL839X_ACL_CLR_CTRL) & BIT(0));
mutex_unlock(&priv->reg_mutex);
return 0;
}
/*
* Reads the intermediate representation of the templated match-fields of the
* PIE rule in the pie_rule structure and fills in the raw data fields in the
* raw register space r[].
* The register space configuration size is identical for the RTL8380/90 and RTL9300,
* however the RTL9310 has 2 more registers / fields and the physical field-ids are different
* on all SoCs
* On the RTL8390 the template mask registers are not word-aligned!
*/
static void rtl839x_write_pie_templated(u32 r[], struct pie_rule *pr, enum template_field_id t[])
{
int i;
enum template_field_id field_type;
u16 data, data_m;
for (i = 0; i < N_FIXED_FIELDS; i++) {
field_type = t[i];
data = data_m = 0;
switch (field_type) {
case TEMPLATE_FIELD_SPM0:
data = pr->spm;
data_m = pr->spm_m;
break;
case TEMPLATE_FIELD_SPM1:
data = pr->spm >> 16;
data_m = pr->spm_m >> 16;
break;
case TEMPLATE_FIELD_SPM2:
data = pr->spm >> 32;
data_m = pr->spm_m >> 32;
break;
case TEMPLATE_FIELD_SPM3:
data = pr->spm >> 48;
data_m = pr->spm_m >> 48;
break;
case TEMPLATE_FIELD_OTAG:
data = pr->otag;
data_m = pr->otag_m;
break;
case TEMPLATE_FIELD_SMAC0:
data = pr->smac[4];
data = (data << 8) | pr->smac[5];
data_m = pr->smac_m[4];
data_m = (data_m << 8) | pr->smac_m[5];
break;
case TEMPLATE_FIELD_SMAC1:
data = pr->smac[2];
data = (data << 8) | pr->smac[3];
data_m = pr->smac_m[2];
data_m = (data_m << 8) | pr->smac_m[3];
break;
case TEMPLATE_FIELD_SMAC2:
data = pr->smac[0];
data = (data << 8) | pr->smac[1];
data_m = pr->smac_m[0];
data_m = (data_m << 8) | pr->smac_m[1];
break;
case TEMPLATE_FIELD_DMAC0:
data = pr->dmac[4];
data = (data << 8) | pr->dmac[5];
data_m = pr->dmac_m[4];
data_m = (data_m << 8) | pr->dmac_m[5];
break;
case TEMPLATE_FIELD_DMAC1:
data = pr->dmac[2];
data = (data << 8) | pr->dmac[3];
data_m = pr->dmac_m[2];
data_m = (data_m << 8) | pr->dmac_m[3];
break;
case TEMPLATE_FIELD_DMAC2:
data = pr->dmac[0];
data = (data << 8) | pr->dmac[1];
data_m = pr->dmac_m[0];
data_m = (data_m << 8) | pr->dmac_m[1];
break;
case TEMPLATE_FIELD_ETHERTYPE:
data = pr->ethertype;
data_m = pr->ethertype_m;
break;
case TEMPLATE_FIELD_ITAG:
data = pr->itag;
data_m = pr->itag_m;
break;
case TEMPLATE_FIELD_SIP0:
if (pr->is_ipv6) {
data = pr->sip6.s6_addr16[7];
data_m = pr->sip6_m.s6_addr16[7];
} else {
data = pr->sip;
data_m = pr->sip_m;
}
break;
case TEMPLATE_FIELD_SIP1:
if (pr->is_ipv6) {
data = pr->sip6.s6_addr16[6];
data_m = pr->sip6_m.s6_addr16[6];
} else {
data = pr->sip >> 16;
data_m = pr->sip_m >> 16;
}
break;
case TEMPLATE_FIELD_SIP2:
case TEMPLATE_FIELD_SIP3:
case TEMPLATE_FIELD_SIP4:
case TEMPLATE_FIELD_SIP5:
case TEMPLATE_FIELD_SIP6:
case TEMPLATE_FIELD_SIP7:
data = pr->sip6.s6_addr16[5 - (field_type - TEMPLATE_FIELD_SIP2)];
data_m = pr->sip6_m.s6_addr16[5 - (field_type - TEMPLATE_FIELD_SIP2)];
break;
case TEMPLATE_FIELD_DIP0:
if (pr->is_ipv6) {
data = pr->dip6.s6_addr16[7];
data_m = pr->dip6_m.s6_addr16[7];
} else {
data = pr->dip;
data_m = pr->dip_m;
}
break;
case TEMPLATE_FIELD_DIP1:
if (pr->is_ipv6) {
data = pr->dip6.s6_addr16[6];
data_m = pr->dip6_m.s6_addr16[6];
} else {
data = pr->dip >> 16;
data_m = pr->dip_m >> 16;
}
break;
case TEMPLATE_FIELD_DIP2:
case TEMPLATE_FIELD_DIP3:
case TEMPLATE_FIELD_DIP4:
case TEMPLATE_FIELD_DIP5:
case TEMPLATE_FIELD_DIP6:
case TEMPLATE_FIELD_DIP7:
data = pr->dip6.s6_addr16[5 - (field_type - TEMPLATE_FIELD_DIP2)];
data_m = pr->dip6_m.s6_addr16[5 - (field_type - TEMPLATE_FIELD_DIP2)];
break;
case TEMPLATE_FIELD_IP_TOS_PROTO:
data = pr->tos_proto;
data_m = pr->tos_proto_m;
break;
case TEMPLATE_FIELD_L4_SPORT:
data = pr->sport;
data_m = pr->sport_m;
break;
case TEMPLATE_FIELD_L4_DPORT:
data = pr->dport;
data_m = pr->dport_m;
break;
case TEMPLATE_FIELD_ICMP_IGMP:
data = pr->icmp_igmp;
data_m = pr->icmp_igmp_m;
break;
default:
pr_info("%s: unknown field %d\n", __func__, field_type);
}
// On the RTL8390, the mask fields are not word aligned!
if (!(i % 2)) {
r[5 - i / 2] = data;
r[12 - i / 2] |= ((u32)data_m << 8);
} else {
r[5 - i / 2] |= ((u32)data) << 16;
r[12 - i / 2] |= ((u32)data_m) << 24;
r[11 - i / 2] |= ((u32)data_m) >> 8;
}
}
}
/*
* Creates the intermediate representation of the templated match-fields of the
* PIE rule in the pie_rule structure by reading the raw data fields in the
* raw register space r[].
* The register space configuration size is identical for the RTL8380/90 and RTL9300,
* however the RTL9310 has 2 more registers / fields and the physical field-ids
* On the RTL8390 the template mask registers are not word-aligned!
*/
void rtl839x_read_pie_templated(u32 r[], struct pie_rule *pr, enum template_field_id t[])
{
int i;
enum template_field_id field_type;
u16 data, data_m;
for (i = 0; i < N_FIXED_FIELDS; i++) {
field_type = t[i];
if (!(i % 2)) {
data = r[5 - i / 2];
data_m = r[12 - i / 2];
} else {
data = r[5 - i / 2] >> 16;
data_m = r[12 - i / 2] >> 16;
}
switch (field_type) {
case TEMPLATE_FIELD_SPM0:
pr->spm = (pr->spn << 16) | data;
pr->spm_m = (pr->spn << 16) | data_m;
break;
case TEMPLATE_FIELD_SPM1:
pr->spm = data;
pr->spm_m = data_m;
break;
case TEMPLATE_FIELD_OTAG:
pr->otag = data;
pr->otag_m = data_m;
break;
case TEMPLATE_FIELD_SMAC0:
pr->smac[4] = data >> 8;
pr->smac[5] = data;
pr->smac_m[4] = data >> 8;
pr->smac_m[5] = data;
break;
case TEMPLATE_FIELD_SMAC1:
pr->smac[2] = data >> 8;
pr->smac[3] = data;
pr->smac_m[2] = data >> 8;
pr->smac_m[3] = data;
break;
case TEMPLATE_FIELD_SMAC2:
pr->smac[0] = data >> 8;
pr->smac[1] = data;
pr->smac_m[0] = data >> 8;
pr->smac_m[1] = data;
break;
case TEMPLATE_FIELD_DMAC0:
pr->dmac[4] = data >> 8;
pr->dmac[5] = data;
pr->dmac_m[4] = data >> 8;
pr->dmac_m[5] = data;
break;
case TEMPLATE_FIELD_DMAC1:
pr->dmac[2] = data >> 8;
pr->dmac[3] = data;
pr->dmac_m[2] = data >> 8;
pr->dmac_m[3] = data;
break;
case TEMPLATE_FIELD_DMAC2:
pr->dmac[0] = data >> 8;
pr->dmac[1] = data;
pr->dmac_m[0] = data >> 8;
pr->dmac_m[1] = data;
break;
case TEMPLATE_FIELD_ETHERTYPE:
pr->ethertype = data;
pr->ethertype_m = data_m;
break;
case TEMPLATE_FIELD_ITAG:
pr->itag = data;
pr->itag_m = data_m;
break;
case TEMPLATE_FIELD_SIP0:
pr->sip = data;
pr->sip_m = data_m;
break;
case TEMPLATE_FIELD_SIP1:
pr->sip = (pr->sip << 16) | data;
pr->sip_m = (pr->sip << 16) | data_m;
break;
case TEMPLATE_FIELD_SIP2:
pr->is_ipv6 = true;
// Make use of limitiations on the position of the match values
ipv6_addr_set(&pr->sip6, pr->sip, r[5 - i / 2],
r[4 - i / 2], r[3 - i / 2]);
ipv6_addr_set(&pr->sip6_m, pr->sip_m, r[5 - i / 2],
r[4 - i / 2], r[3 - i / 2]);
case TEMPLATE_FIELD_SIP3:
case TEMPLATE_FIELD_SIP4:
case TEMPLATE_FIELD_SIP5:
case TEMPLATE_FIELD_SIP6:
case TEMPLATE_FIELD_SIP7:
break;
case TEMPLATE_FIELD_DIP0:
pr->dip = data;
pr->dip_m = data_m;
break;
case TEMPLATE_FIELD_DIP1:
pr->dip = (pr->dip << 16) | data;
pr->dip_m = (pr->dip << 16) | data_m;
break;
case TEMPLATE_FIELD_DIP2:
pr->is_ipv6 = true;
ipv6_addr_set(&pr->dip6, pr->dip, r[5 - i / 2],
r[4 - i / 2], r[3 - i / 2]);
ipv6_addr_set(&pr->dip6_m, pr->dip_m, r[5 - i / 2],
r[4 - i / 2], r[3 - i / 2]);
case TEMPLATE_FIELD_DIP3:
case TEMPLATE_FIELD_DIP4:
case TEMPLATE_FIELD_DIP5:
case TEMPLATE_FIELD_DIP6:
case TEMPLATE_FIELD_DIP7:
break;
case TEMPLATE_FIELD_IP_TOS_PROTO:
pr->tos_proto = data;
pr->tos_proto_m = data_m;
break;
case TEMPLATE_FIELD_L4_SPORT:
pr->sport = data;
pr->sport_m = data_m;
break;
case TEMPLATE_FIELD_L4_DPORT:
pr->dport = data;
pr->dport_m = data_m;
break;
case TEMPLATE_FIELD_ICMP_IGMP:
pr->icmp_igmp = data;
pr->icmp_igmp_m = data_m;
break;
default:
pr_info("%s: unknown field %d\n", __func__, field_type);
}
}
}
static void rtl839x_read_pie_fixed_fields(u32 r[], struct pie_rule *pr)
{
pr->spmmask_fix = (r[6] >> 30) & 0x3;
pr->spn = (r[6] >> 24) & 0x3f;
pr->mgnt_vlan = (r[6] >> 23) & 1;
pr->dmac_hit_sw = (r[6] >> 22) & 1;
pr->not_first_frag = (r[6] >> 21) & 1;
pr->frame_type_l4 = (r[6] >> 18) & 7;
pr->frame_type = (r[6] >> 16) & 3;
pr->otag_fmt = (r[6] >> 15) & 1;
pr->itag_fmt = (r[6] >> 14) & 1;
pr->otag_exist = (r[6] >> 13) & 1;
pr->itag_exist = (r[6] >> 12) & 1;
pr->frame_type_l2 = (r[6] >> 10) & 3;
pr->tid = (r[6] >> 8) & 3;
pr->spmmask_fix_m = (r[12] >> 6) & 0x3;
pr->spn_m = r[12] & 0x3f;
pr->mgnt_vlan_m = (r[13] >> 31) & 1;
pr->dmac_hit_sw_m = (r[13] >> 30) & 1;
pr->not_first_frag_m = (r[13] >> 29) & 1;
pr->frame_type_l4_m = (r[13] >> 26) & 7;
pr->frame_type_m = (r[13] >> 24) & 3;
pr->otag_fmt_m = (r[13] >> 23) & 1;
pr->itag_fmt_m = (r[13] >> 22) & 1;
pr->otag_exist_m = (r[13] >> 21) & 1;
pr->itag_exist_m = (r[13] >> 20) & 1;
pr->frame_type_l2_m = (r[13] >> 18) & 3;
pr->tid_m = (r[13] >> 16) & 3;
pr->valid = r[13] & BIT(15);
pr->cond_not = r[13] & BIT(14);
pr->cond_and1 = r[13] & BIT(13);
pr->cond_and2 = r[13] & BIT(12);
}
static void rtl839x_write_pie_fixed_fields(u32 r[], struct pie_rule *pr)
{
r[6] = ((u32) (pr->spmmask_fix & 0x3)) << 30;
r[6] |= ((u32) (pr->spn & 0x3f)) << 24;
r[6] |= pr->mgnt_vlan ? BIT(23) : 0;
r[6] |= pr->dmac_hit_sw ? BIT(22) : 0;
r[6] |= pr->not_first_frag ? BIT(21) : 0;
r[6] |= ((u32) (pr->frame_type_l4 & 0x7)) << 18;
r[6] |= ((u32) (pr->frame_type & 0x3)) << 16;
r[6] |= pr->otag_fmt ? BIT(15) : 0;
r[6] |= pr->itag_fmt ? BIT(14) : 0;
r[6] |= pr->otag_exist ? BIT(13) : 0;
r[6] |= pr->itag_exist ? BIT(12) : 0;
r[6] |= ((u32) (pr->frame_type_l2 & 0x3)) << 10;
r[6] |= ((u32) (pr->tid & 0x3)) << 8;
r[12] |= ((u32) (pr->spmmask_fix_m & 0x3)) << 6;
r[12] |= (u32) (pr->spn_m & 0x3f);
r[13] |= pr->mgnt_vlan_m ? BIT(31) : 0;
r[13] |= pr->dmac_hit_sw_m ? BIT(30) : 0;
r[13] |= pr->not_first_frag_m ? BIT(29) : 0;
r[13] |= ((u32) (pr->frame_type_l4_m & 0x7)) << 26;
r[13] |= ((u32) (pr->frame_type_m & 0x3)) << 24;
r[13] |= pr->otag_fmt_m ? BIT(23) : 0;
r[13] |= pr->itag_fmt_m ? BIT(22) : 0;
r[13] |= pr->otag_exist_m ? BIT(21) : 0;
r[13] |= pr->itag_exist_m ? BIT(20) : 0;
r[13] |= ((u32) (pr->frame_type_l2_m & 0x3)) << 18;
r[13] |= ((u32) (pr->tid_m & 0x3)) << 16;
r[13] |= pr->valid ? BIT(15) : 0;
r[13] |= pr->cond_not ? BIT(14) : 0;
r[13] |= pr->cond_and1 ? BIT(13) : 0;
r[13] |= pr->cond_and2 ? BIT(12) : 0;
}
static void rtl839x_write_pie_action(u32 r[], struct pie_rule *pr)
{
if (pr->drop) {
r[13] |= 0x9; // Set ACT_MASK_FWD & FWD_ACT = DROP
r[13] |= BIT(3);
} else {
r[13] |= pr->fwd_sel ? BIT(3) : 0;
r[13] |= pr->fwd_act;
}
r[13] |= pr->bypass_sel ? BIT(11) : 0;
r[13] |= pr->mpls_sel ? BIT(10) : 0;
r[13] |= pr->nopri_sel ? BIT(9) : 0;
r[13] |= pr->ovid_sel ? BIT(8) : 0;
r[13] |= pr->ivid_sel ? BIT(7) : 0;
r[13] |= pr->meter_sel ? BIT(6) : 0;
r[13] |= pr->mir_sel ? BIT(5) : 0;
r[13] |= pr->log_sel ? BIT(4) : 0;
r[14] |= ((u32)(pr->fwd_data & 0x3fff)) << 18;
r[14] |= pr->log_octets ? BIT(17) : 0;
r[14] |= ((u32)(pr->log_data & 0x7ff)) << 4;
r[14] |= (pr->mir_data & 0x3) << 3;
r[14] |= ((u32)(pr->meter_data >> 7)) & 0x7;
r[15] |= (u32)(pr->meter_data) << 26;
r[15] |= ((u32)(pr->ivid_act) << 23) & 0x3;
r[15] |= ((u32)(pr->ivid_data) << 9) & 0xfff;
r[15] |= ((u32)(pr->ovid_act) << 6) & 0x3;
r[15] |= ((u32)(pr->ovid_data) >> 4) & 0xff;
r[16] |= ((u32)(pr->ovid_data) & 0xf) << 28;
r[16] |= ((u32)(pr->nopri_data) & 0x7) << 20;
r[16] |= ((u32)(pr->mpls_act) & 0x7) << 20;
r[16] |= ((u32)(pr->mpls_lib_idx) & 0x7) << 20;
r[16] |= pr->bypass_all ? BIT(9) : 0;
r[16] |= pr->bypass_igr_stp ? BIT(8) : 0;
r[16] |= pr->bypass_ibc_sc ? BIT(7) : 0;
}
static void rtl839x_read_pie_action(u32 r[], struct pie_rule *pr)
{
if (r[13] & BIT(3)) { // ACT_MASK_FWD set, is it a drop?
if ((r[14] & 0x7) == 1) {
pr->drop = true;
} else {
pr->fwd_sel = true;
pr->fwd_act = r[14] & 0x7;
}
}
pr->bypass_sel = r[13] & BIT(11);
pr->mpls_sel = r[13] & BIT(10);
pr->nopri_sel = r[13] & BIT(9);
pr->ovid_sel = r[13] & BIT(8);
pr->ivid_sel = r[13] & BIT(7);
pr->meter_sel = r[13] & BIT(6);
pr->mir_sel = r[13] & BIT(5);
pr->log_sel = r[13] & BIT(4);
// TODO: Read in data fields
pr->bypass_all = r[16] & BIT(9);
pr->bypass_igr_stp = r[16] & BIT(8);
pr->bypass_ibc_sc = r[16] & BIT(7);
}
void rtl839x_pie_rule_dump_raw(u32 r[])
{
pr_info("Raw IACL table entry:\n");
pr_info("Match : %08x %08x %08x %08x %08x %08x\n", r[0], r[1], r[2], r[3], r[4], r[5]);
pr_info("Fixed : %06x\n", r[6] >> 8);
pr_info("Match M: %08x %08x %08x %08x %08x %08x\n",
(r[6] << 24) | (r[7] >> 8), (r[7] << 24) | (r[8] >> 8), (r[8] << 24) | (r[9] >> 8),
(r[9] << 24) | (r[10] >> 8), (r[10] << 24) | (r[11] >> 8),
(r[11] << 24) | (r[12] >> 8));
pr_info("R[13]: %08x\n", r[13]);
pr_info("Fixed M: %06x\n", ((r[12] << 16) | (r[13] >> 16)) & 0xffffff);
pr_info("Valid / not / and1 / and2 : %1x\n", (r[13] >> 12) & 0xf);
pr_info("r 13-16: %08x %08x %08x %08x\n", r[13], r[14], r[15], r[16]);
}
void rtl839x_pie_rule_dump(struct pie_rule *pr)
{
pr_info("Drop: %d, fwd: %d, ovid: %d, ivid: %d, flt: %d, log: %d, rmk: %d, meter: %d tagst: %d, mir: %d, nopri: %d, cpupri: %d, otpid: %d, itpid: %d, shape: %d\n",
pr->drop, pr->fwd_sel, pr->ovid_sel, pr->ivid_sel, pr->flt_sel, pr->log_sel, pr->rmk_sel, pr->log_sel, pr->tagst_sel, pr->mir_sel, pr->nopri_sel,
pr->cpupri_sel, pr->otpid_sel, pr->itpid_sel, pr->shaper_sel);
if (pr->fwd_sel)
pr_info("FWD: %08x\n", pr->fwd_data);
pr_info("TID: %x, %x\n", pr->tid, pr->tid_m);
}
static int rtl839x_pie_rule_read(struct rtl838x_switch_priv *priv, int idx, struct pie_rule *pr)
{
// Read IACL table (2) via register 0
struct table_reg *q = rtl_table_get(RTL8380_TBL_0, 2);
u32 r[17];
int i;
int block = idx / PIE_BLOCK_SIZE;
u32 t_select = sw_r32(RTL839X_ACL_BLK_TMPLTE_CTRL(block));
memset(pr, 0, sizeof(*pr));
rtl_table_read(q, idx);
for (i = 0; i < 17; i++)
r[i] = sw_r32(rtl_table_data(q, i));
rtl_table_release(q);
rtl839x_read_pie_fixed_fields(r, pr);
if (!pr->valid)
return 0;
pr_debug("%s: template_selectors %08x, tid: %d\n", __func__, t_select, pr->tid);
rtl839x_pie_rule_dump_raw(r);
rtl839x_read_pie_templated(r, pr, fixed_templates[(t_select >> (pr->tid * 3)) & 0x7]);
rtl839x_read_pie_action(r, pr);
return 0;
}
static int rtl839x_pie_rule_write(struct rtl838x_switch_priv *priv, int idx, struct pie_rule *pr)
{
// Access IACL table (2) via register 0
struct table_reg *q = rtl_table_get(RTL8390_TBL_0, 2);
u32 r[17];
int i;
int block = idx / PIE_BLOCK_SIZE;
u32 t_select = sw_r32(RTL839X_ACL_BLK_TMPLTE_CTRL(block));
pr_debug("%s: %d, t_select: %08x\n", __func__, idx, t_select);
for (i = 0; i < 17; i++)
r[i] = 0;
if (!pr->valid) {
rtl_table_write(q, idx);
rtl_table_release(q);
return 0;
}
rtl839x_write_pie_fixed_fields(r, pr);
pr_debug("%s: template %d\n", __func__, (t_select >> (pr->tid * 3)) & 0x7);
rtl839x_write_pie_templated(r, pr, fixed_templates[(t_select >> (pr->tid * 3)) & 0x7]);
rtl839x_write_pie_action(r, pr);
// rtl839x_pie_rule_dump_raw(r);
for (i = 0; i < 17; i++)
sw_w32(r[i], rtl_table_data(q, i));
rtl_table_write(q, idx);
rtl_table_release(q);
return 0;
}
static bool rtl839x_pie_templ_has(int t, enum template_field_id field_type)
{
int i;
enum template_field_id ft;
for (i = 0; i < N_FIXED_FIELDS; i++) {
ft = fixed_templates[t][i];
if (field_type == ft)
return true;
}
return false;
}
static int rtl839x_pie_verify_template(struct rtl838x_switch_priv *priv,
struct pie_rule *pr, int t, int block)
{
int i;
if (!pr->is_ipv6 && pr->sip_m && !rtl839x_pie_templ_has(t, TEMPLATE_FIELD_SIP0))
return -1;
if (!pr->is_ipv6 && pr->dip_m && !rtl839x_pie_templ_has(t, TEMPLATE_FIELD_DIP0))
return -1;
if (pr->is_ipv6) {
if ((pr->sip6_m.s6_addr32[0] || pr->sip6_m.s6_addr32[1]
|| pr->sip6_m.s6_addr32[2] || pr->sip6_m.s6_addr32[3])
&& !rtl839x_pie_templ_has(t, TEMPLATE_FIELD_SIP2))
return -1;
if ((pr->dip6_m.s6_addr32[0] || pr->dip6_m.s6_addr32[1]
|| pr->dip6_m.s6_addr32[2] || pr->dip6_m.s6_addr32[3])
&& !rtl839x_pie_templ_has(t, TEMPLATE_FIELD_DIP2))
return -1;
}
if (ether_addr_to_u64(pr->smac) && !rtl839x_pie_templ_has(t, TEMPLATE_FIELD_SMAC0))
return -1;
if (ether_addr_to_u64(pr->dmac) && !rtl839x_pie_templ_has(t, TEMPLATE_FIELD_DMAC0))
return -1;
// TODO: Check more
i = find_first_zero_bit(&priv->pie_use_bm[block * 4], PIE_BLOCK_SIZE);
if (i >= PIE_BLOCK_SIZE)
return -1;
return i + PIE_BLOCK_SIZE * block;
}
static int rtl839x_pie_rule_add(struct rtl838x_switch_priv *priv, struct pie_rule *pr)
{
int idx, block, j, t;
int min_block = 0;
int max_block = priv->n_pie_blocks / 2;
if (pr->is_egress) {
min_block = max_block;
max_block = priv->n_pie_blocks;
}
mutex_lock(&priv->pie_mutex);
for (block = min_block; block < max_block; block++) {
for (j = 0; j < 2; j++) {
t = (sw_r32(RTL839X_ACL_BLK_TMPLTE_CTRL(block)) >> (j * 3)) & 0x7;
idx = rtl839x_pie_verify_template(priv, pr, t, block);
if (idx >= 0)
break;
}
if (j < 2)
break;
}
if (block >= priv->n_pie_blocks) {
mutex_unlock(&priv->pie_mutex);
return -EOPNOTSUPP;
}
set_bit(idx, priv->pie_use_bm);
pr->valid = true;
pr->tid = j; // Mapped to template number
pr->tid_m = 0x3;
pr->id = idx;
rtl839x_pie_lookup_enable(priv, idx);
rtl839x_pie_rule_write(priv, idx, pr);
mutex_unlock(&priv->pie_mutex);
return 0;
}
static void rtl839x_pie_rule_rm(struct rtl838x_switch_priv *priv, struct pie_rule *pr)
{
int idx = pr->id;
rtl839x_pie_rule_del(priv, idx, idx);
clear_bit(idx, priv->pie_use_bm);
}
static void rtl839x_pie_init(struct rtl838x_switch_priv *priv)
{
int i;
u32 template_selectors;
mutex_init(&priv->pie_mutex);
// Power on all PIE blocks
for (i = 0; i < priv->n_pie_blocks; i++)
sw_w32_mask(0, BIT(i), RTL839X_PS_ACL_PWR_CTRL);
// Set ingress and egress ACL blocks to 50/50: first Egress block is 9
sw_w32_mask(0x1f, 9, RTL839X_ACL_CTRL); // Writes 9 to cutline field
// Include IPG in metering
sw_w32(1, RTL839X_METER_GLB_CTRL);
// Delete all present rules
rtl839x_pie_rule_del(priv, 0, priv->n_pie_blocks * PIE_BLOCK_SIZE - 1);
// Enable predefined templates 0, 1 for blocks 0-2
template_selectors = 0 | (1 << 3);
for (i = 0; i < 3; i++)
sw_w32(template_selectors, RTL839X_ACL_BLK_TMPLTE_CTRL(i));
// Enable predefined templates 2, 3 for blocks 3-5
template_selectors = 2 | (3 << 3);
for (i = 3; i < 6; i++)
sw_w32(template_selectors, RTL839X_ACL_BLK_TMPLTE_CTRL(i));
// Enable predefined templates 1, 4 for blocks 6-8
template_selectors = 2 | (3 << 3);
for (i = 6; i < 9; i++)
sw_w32(template_selectors, RTL839X_ACL_BLK_TMPLTE_CTRL(i));
// Enable predefined templates 0, 1 for blocks 9-11
template_selectors = 0 | (1 << 3);
for (i = 9; i < 12; i++)
sw_w32(template_selectors, RTL839X_ACL_BLK_TMPLTE_CTRL(i));
// Enable predefined templates 2, 3 for blocks 12-14
template_selectors = 2 | (3 << 3);
for (i = 12; i < 15; i++)
sw_w32(template_selectors, RTL839X_ACL_BLK_TMPLTE_CTRL(i));
// Enable predefined templates 1, 4 for blocks 15-17
template_selectors = 2 | (3 << 3);
for (i = 15; i < 18; i++)
sw_w32(template_selectors, RTL839X_ACL_BLK_TMPLTE_CTRL(i));
}
static u32 rtl839x_packet_cntr_read(int counter)
{
u32 v;
// Read LOG table (4) via register RTL8390_TBL_0
struct table_reg *r = rtl_table_get(RTL8390_TBL_0, 4);
pr_debug("In %s, id %d\n", __func__, counter);
rtl_table_read(r, counter / 2);
// The table has a size of 2 registers
if (counter % 2)
v = sw_r32(rtl_table_data(r, 0));
else
v = sw_r32(rtl_table_data(r, 1));
rtl_table_release(r);
return v;
}
static void rtl839x_packet_cntr_clear(int counter)
{
// Access LOG table (4) via register RTL8390_TBL_0
struct table_reg *r = rtl_table_get(RTL8390_TBL_0, 4);
pr_debug("In %s, id %d\n", __func__, counter);
// The table has a size of 2 registers
if (counter % 2)
sw_w32(0, rtl_table_data(r, 0));
else
sw_w32(0, rtl_table_data(r, 1));
rtl_table_write(r, counter / 2);
rtl_table_release(r);
}
const struct rtl838x_reg rtl839x_reg = { const struct rtl838x_reg rtl839x_reg = {
.mask_port_reg_be = rtl839x_mask_port_reg_be, .mask_port_reg_be = rtl839x_mask_port_reg_be,
.set_port_reg_be = rtl839x_set_port_reg_be, .set_port_reg_be = rtl839x_set_port_reg_be,
@ -804,4 +1672,11 @@ const struct rtl838x_reg rtl839x_reg = {
.l2_hash_key = rtl839x_l2_hash_key, .l2_hash_key = rtl839x_l2_hash_key,
.read_mcast_pmask = rtl839x_read_mcast_pmask, .read_mcast_pmask = rtl839x_read_mcast_pmask,
.write_mcast_pmask = rtl839x_write_mcast_pmask, .write_mcast_pmask = rtl839x_write_mcast_pmask,
.pie_init = rtl839x_pie_init,
.pie_rule_read = rtl839x_pie_rule_read,
.pie_rule_write = rtl839x_pie_rule_write,
.pie_rule_add = rtl839x_pie_rule_add,
.pie_rule_rm = rtl839x_pie_rule_rm,
.packet_cntr_read = rtl839x_packet_cntr_read,
.packet_cntr_clear = rtl839x_packet_cntr_clear,
}; };