/* bnx2x_dcb.c: Broadcom Everest network driver.
*
* Copyright 2009-2011 Broadcom Corporation
*
* Unless you and Broadcom execute a separate written software license
* agreement governing use of this software, this software is licensed to you
* under the terms of the GNU General Public License version 2, available
* at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
*
* Notwithstanding the above, under no circumstances may you combine this
* software in any way with any other Broadcom software provided under a
* license other than the GPL, without Broadcom's express prior written
* consent.
*
* Maintained by: Eilon Greenstein <eilong@broadcom.com>
* Written by: Dmitry Kravkov
*
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/netdevice.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/rtnetlink.h>
#include <net/dcbnl.h>
#include "bnx2x.h"
#include "bnx2x_cmn.h"
#include "bnx2x_dcb.h"
/* forward declarations of dcbx related functions */
static int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp);
static void bnx2x_pfc_set_pfc(struct bnx2x *bp);
static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp);
static int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp);
static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
u32 *set_configuration_ets_pg,
u32 *pri_pg_tbl);
static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
u32 *pg_pri_orginal_spread,
struct pg_help_data *help_data);
static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp,
struct pg_help_data *help_data,
struct dcbx_ets_feature *ets,
u32 *pg_pri_orginal_spread);
static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
struct cos_help_data *cos_data,
u32 *pg_pri_orginal_spread,
struct dcbx_ets_feature *ets);
static void bnx2x_dcbx_fw_struct(struct bnx2x *bp,
struct bnx2x_func_tx_start_params*);
/* helpers: read/write len bytes from addr into buff by REG_RD/REG_WR */
static void bnx2x_read_data(struct bnx2x *bp, u32 *buff,
u32 addr, u32 len)
{
int i;
for (i = 0; i < len; i += 4, buff++)
*buff = REG_RD(bp, addr + i);
}
static void bnx2x_write_data(struct bnx2x *bp, u32 *buff,
u32 addr, u32 len)
{
int i;
for (i = 0; i < len; i += 4, buff++)
REG_WR(bp, addr + i, *buff);
}
static void bnx2x_pfc_set(struct bnx2x *bp)
{
struct bnx2x_nig_brb_pfc_port_params pfc_params = {0};
u32 pri_bit, val = 0;
int i;
pfc_params.num_of_rx_cos_priority_mask =
bp->dcbx_port_params.ets.num_of_cos;
/* Tx COS configuration */
for (i = 0; i < bp->dcbx_port_params.ets.num_of_cos; i++)
/*
* We configure only the pauseable bits (non pauseable aren't
* configured at all) it's done to avoid false pauses from
* network
*/
pfc_params.rx_cos_priority_mask[i] =
bp->dcbx_port_params.ets.cos_params[i].pri_bitmask
& DCBX_PFC_PRI_PAUSE_MASK(bp);
/*
* Rx COS configuration
* Changing PFC RX configuration .
* In RX COS0 will always be configured to lossy and COS1 to lossless
*/
for (i = 0 ; i < MAX_PFC_PRIORITIES ; i++) {
pri_bit = 1 << i;
if (pri_bit & DCBX_PFC_PRI_PAUSE_MASK(bp))
val |= 1 << (i * 4);
}
pfc_params.pkt_priority_to_cos = val;
/* RX COS0 */
pfc_params.llfc_low_priority_classes = 0;
/* RX COS1 */
pfc_params.llfc_high_priority_classes = DCBX_PFC_PRI_PAUSE_MASK(bp);
/* BRB configuration */
pfc_params.cos0_pauseable = false;
pfc_params.cos1_pauseable = true;
bnx2x_acquire_phy_lock(bp);
bp->link_params.feature_config_flags |= FEATURE_CONFIG_PFC_ENABLED;
bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &pfc_params);
bnx2x_release_phy_lock(bp);
}
static void bnx2x_pfc_clear(struct bnx2x *bp)
{
struct bnx2x_nig_brb_pfc_port_params nig_params = {0};
nig_params.pause_enable = 1;
#ifdef BNX2X_SAFC
if (bp->flags & SAFC_TX_FLAG) {
u32 high = 0, low = 0;
int i;
for (i = 0; i < BNX2X_MAX_PRIORITY; i++) {
if (bp->pri_map[i] == 1)
high |= (1 << i);
if (bp->pri_map[i] == 0)
low |= (1 << i);
}
nig_params.llfc_low_priority_classes = high;
nig_params.llfc_low_priority_classes = low;
nig_params.pause_enable = 0;
nig_params.llfc_enable = 1;
nig_params.llfc_out_en = 1;
}
#endif /* BNX2X_SAFC */
bnx2x_acquire_phy_lock(bp);
bp->link_params.feature_config_flags &= ~FEATURE_CONFIG_PFC_ENABLED;
bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &nig_params);
bnx2x_release_phy_lock(bp);
}
static void bnx2x_dump_dcbx_drv_param(struct bnx2x *bp,
struct dcbx_features *features,
u32 error)
{
u8 i = 0;
DP(NETIF_MSG_LINK, "local_mib.error %x\n", error);
/* PG */
DP(NETIF_MSG_LINK,
"local_mib.features.ets.enabled %x\n", features->ets.enabled);
for (i = 0; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++)
DP(NETIF_MSG_LINK,
"local_mib.features.ets.pg_bw_tbl[%d] %d\n", i,
DCBX_PG_BW_GET(features->ets.pg_bw_tbl, i));
for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++)
DP(NETIF_MSG_LINK,
"local_mib.features.ets.pri_pg_tbl[%d] %d\n", i,
DCBX_PRI_PG_GET(features->ets.pri_pg_tbl, i));
/* pfc */
DP(NETIF_MSG_LINK, "dcbx_features.pfc.pri_en_bitmap %x\n",
features->pfc.pri_en_bitmap);
DP(NETIF_MSG_LINK, "dcbx_features.pfc.pfc_caps %x\n",
features->pfc.pfc_caps);
DP(NETIF_MSG_LINK, "dcbx_features.pfc.enabled %x\n",
features->pfc.enabled);
DP(NETIF_MSG_LINK, "dcbx_features.app.default_pri %x\n",
features->app.default_pri);
DP(NETIF_MSG_LINK, "dcbx_features.app.tc_supported %x\n",
features->app.tc_supported);
DP(NETIF_MSG_LINK, "dcbx_features.app.enabled %x\n",
features->app.enabled);
for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
DP(NETIF_MSG_LINK,
"dcbx_features.app.app_pri_tbl[%x].app_id %x\n",
i, features->app.app_pri_tbl[i].app_id);
DP(NETIF_MSG_LINK,
"dcbx_features.app.app_pri_tbl[%x].pri_bitmap %x\n",
i, features->app.app_pri_tbl[i].pri_bitmap);
DP(NETIF_MSG_LINK,
"dcbx_features.app.app_pri_tbl[%x].appBitfield %x\n",
i, features->app.app_pri_tbl[i].appBitfield);
}
}
static void bnx2x_dcbx_get_ap_priority(struct bnx2x *bp,
u8 pri_bitmap,
u8 llfc_traf_type)
{
u32 pri = MAX_PFC_PRIORITIES;
u32 index = MAX_PFC_PRIORITIES - 1;
u32 pri_mask;
u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
/* Choose the highest priority */
while ((MAX_PFC_PRIORITIES == pri) && (0 != index)) {
pri_mask = 1 << index;
if (GET_FLAGS(pri_bitmap, pri_mask))
pri = index ;
index--;
}
if (pri < MAX_PFC_PRIORITIES)
ttp[llfc_traf_type] = max_t(u32, ttp[llfc_traf_type], pri);
}
static void bnx2x_dcbx_get_ap_feature(struct bnx2x *bp,
struct dcbx_app_priority_feature *app,
u32 error) {
u8 index;
u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
if (GET_FLAGS(error, DCBX_LOCAL_APP_ERROR))
DP(NETIF_MSG_LINK, "DCBX_LOCAL_APP_ERROR\n");
if (GET_FLAGS(error, DCBX_LOCAL_APP_MISMATCH))
DP(NETIF_MSG_LINK, "DCBX_LOCAL_APP_MISMATCH\n");
if (app->enabled &&
!GET_FLAGS(error, DCBX_LOCAL_APP_ERROR | DCBX_LOCAL_APP_MISMATCH)) {
bp->dcbx_port_params.app.enabled = true;
for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
ttp[index] = 0;
if (app->default_pri < MAX_PFC_PRIORITIES)
ttp[LLFC_TRAFFIC_TYPE_NW] = app->default_pri;
for (index = 0 ; index < DCBX_MAX_APP_PROTOCOL; index++) {
struct dcbx_app_priority_entry *entry =
app->app_pri_tbl;
if (GET_FLAGS(entry[index].appBitfield,
DCBX_APP_SF_ETH_TYPE) &&
ETH_TYPE_FCOE == entry[index].app_id)
bnx2x_dcbx_get_ap_priority(bp,
entry[index].pri_bitmap,
LLFC_TRAFFIC_TYPE_FCOE);
if (GET_FLAGS(entry[index].appBitfield,
DCBX_APP_SF_PORT) &&
TCP_PORT_ISCSI == entry[index].app_id)
bnx2x_dcbx_get_ap_priority(bp,
entry[index].pri_bitmap,
LLFC_TRAFFIC_TYPE_ISCSI);
}
} else {
DP(NETIF_MSG_LINK, "DCBX_LOCAL_APP_DISABLED\n");
bp->dcbx_port_params.app.enabled = false;
for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++)
ttp[index] = INVALID_TRAFFIC_TYPE_PRIORITY;
}
}
static void bnx2x_dcbx_get_ets_feature(struct bnx2x *bp,
struct dcbx_ets_feature *ets,
u32 error) {
int i = 0;
u32 pg_pri_orginal_spread[DCBX_MAX_NUM_PG_BW_ENTRIES] = {0};
struct pg_help_data pg_help_data;
struct bnx2x_dcbx_cos_params *cos_params =
bp->dcbx_port_params.ets.cos_params;
memset(&pg_help_data, 0, sizeof(struct pg_help_data));
if (GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR))
DP(NETIF_MSG_LINK, "DCBX_LOCAL_ETS_ERROR\n");
/* Clean up old settings of ets on COS */
for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params) ; i++) {
cos_params[i].pauseable = false;
cos_params[i].strict = BNX2X_DCBX_STRICT_INVALID;
cos_params[i].bw_tbl = DCBX_INVALID_COS_BW;
cos_params[i].pri_bitmask = 0;
}
if (bp->dcbx_port_params.app.enabled &&
!GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR) &&
ets->enabled) {
DP(NETIF_MSG_LINK, "DCBX_LOCAL_ETS_ENABLE\n");
bp->dcbx_port_params.ets.enabled = true;
bnx2x_dcbx_get_ets_pri_pg_tbl(bp,
pg_pri_orginal_spread,
ets->pri_pg_tbl);
bnx2x_dcbx_get_num_pg_traf_type(bp,
pg_pri_orginal_spread,
&pg_help_data);
bnx2x_dcbx_fill_cos_params(bp, &pg_help_data,
ets, pg_pri_orginal_spread);
} else {
DP(NETIF_MSG_LINK, "DCBX_LOCAL_ETS_DISABLED\n");
bp->dcbx_port_params.ets.enabled = false;
ets->pri_pg_tbl[0] = 0;
for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES ; i++)
DCBX_PG_BW_SET(ets->pg_bw_tbl, i, 1);
}
}
static void bnx2x_dcbx_get_pfc_feature(struct bnx2x *bp,
struct dcbx_pfc_feature *pfc, u32 error)
{
if (GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR))
DP(NETIF_MSG_LINK, "DCBX_LOCAL_PFC_ERROR\n");
if (bp->dcbx_port_params.app.enabled &&
!GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR | DCBX_LOCAL_PFC_MISMATCH) &&
pfc->enabled) {
bp->dcbx_port_params.pfc.enabled = true;
bp->dcbx_port_params.pfc.priority_non_pauseable_mask =
~(pfc->pri_en_bitmap);
} else {
DP(NETIF_MSG_LINK, "DCBX_LOCAL_PFC_DISABLED\n");
bp->dcbx_port_params.pfc.enabled = false;
bp->dcbx_port_params.pfc.priority_non_pauseable_mask = 0;
}
}
/* maps unmapped priorities to to the same COS as L2 */
static void bnx2x_dcbx_map_nw(struct bnx2x *bp)
{
int i;
u32 unmapped = (1 << MAX_PFC_PRIORITIES) - 1; /* all ones */
u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
u32 nw_prio = 1 << ttp[LLFC_TRAFFIC_TYPE_NW];
struct bnx2x_dcbx_cos_params *cos_params =
bp->dcbx_port_params.ets.cos_params;
/* get unmapped priorities by clearing mapped bits */
for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
unmapped &= ~(1 << ttp[i]);
/* find cos for nw prio and extend it with unmapped */
for (i = 0; i < ARRAY_SIZE(bp->dcbx_port_params.ets.cos_params); i++) {
if (cos_params[i].pri_bitmask & nw_prio) {
/* extend the bitmask with unmapped */
DP(NETIF_MSG_LINK,
"cos %d extended with 0x%08x\n", i, unmapped);
cos_params[i].pri_bitmask |= unmapped;
break;
}
}
}
static void bnx2x_get_dcbx_drv_param(struct bnx2x *bp,
struct dcbx_features *features,
u32 error)
{
bnx2x_dcbx_get_ap_feature(bp, &features->app, error);
bnx2x_dcbx_get_pfc_feature(bp, &features->pfc, error);
bnx2x_dcbx_get_ets_feature(bp, &features->ets, error);
bnx2x_dcbx_map_nw(bp);
}
#define DCBX_LOCAL_MIB_MAX_TRY_READ (100)
static int bnx2x_dcbx_read_mib(struct bnx2x *bp,
u32 *base_mib_addr,
u32 offset,
int read_mib_type)
{
int max_try_read = 0;
u32 mib_size, prefix_seq_num, suffix_seq_num;
struct lldp_remote_mib *remote_mib ;
struct lldp_local_mib *local_mib;
switch (read_mib_type) {
case DCBX_READ_LOCAL_MIB:
mib_size = sizeof(struct lldp_local_mib);
break;
case DCBX_READ_REMOTE_MIB:
mib_size = sizeof(struct lldp_remote_mib);
break;
default:
return 1; /*error*/
}
offset += BP_PORT(bp) * mib_size;
do {
bnx2x_read_data(bp, base_mib_addr, offset, mib_size);
max_try_read++;
switch (read_mib_type) {
case DCBX_READ_LOCAL_MIB:
local_mib = (struct lldp_local_mib *) base_mib_addr;
prefix_seq_num = local_mib->prefix_seq_num;
suffix_seq_num = local_mib->suffix_seq_num;
break;
case DCBX_READ_REMOTE_MIB:
remote_mib = (struct lldp_remote_mib *) base_mib_addr;
prefix_seq_num = remote_mib->prefix_seq_num;
suffix_seq_num = remote_mib->suffix_seq_num;
break;
default:
return 1; /*error*/
}
} while ((prefix_seq_num != suffix_seq_num) &&
(max_try_read < DCBX_LOCAL_MIB_MAX_TRY_READ));
if (max_try_read >= DCBX_LOCAL_MIB_MAX_TRY_READ) {
BNX2X_ERR("MIB could not be read\n");
return 1;
}
return 0;
}
static void bnx2x_pfc_set_pfc(struct bnx2x *bp)
{
if (bp->dcbx_port_params.pfc.enabled &&
!(bp->dcbx_error & DCBX_REMOTE_MIB_ERROR))
/*
* 1. Fills up common PFC structures if required
* 2. Configure NIG, MAC and BRB via the elink
*/
bnx2x_pfc_set(bp);
else
bnx2x_pfc_clear(bp);
}
static int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp)
{
struct bnx2x_func_state_params func_params = {0};
func_params.f_obj = &bp->func_obj;
func_params.cmd = BNX2X_F_CMD_TX_STOP;
DP(NETIF_MSG_LINK, "STOP TRAFFIC\n");
return bnx2x_func_state_change(bp, &func_params);
}
static int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp)
{
struct bnx2x_func_state_params func_params = {0};
struct bnx2x_func_tx_start_params *tx_params =
&func_params.params.tx_start;
func_params.f_obj = &bp->func_obj;
func_params.cmd = BNX2X_F_CMD_TX_START;
bnx2x_dcbx_fw_struct(bp, tx_params);
DP(NETIF_MSG_LINK, "START TRAFFIC\n");
return bnx2x_func_state_change(bp, &func_params);
}
static void bnx2x_dcbx_2cos_limit_update_ets_config(struct bnx2x *bp)
{
struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
int rc = 0;
if (ets->num_of_cos == 0 || ets->num_of_cos > DCBX_COS_MAX_NUM_E2) {
BNX2X_ERR("Illegal number of COSes %d\n", ets->num_of_cos);
return;
}
/* valid COS entries */
if (ets->num_of_cos == 1) /* no ETS */
return;
/* sanity */
if (((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[0].strict) &&
(DCBX_INVALID_COS_BW == ets->cos_params[0].bw_tbl)) ||
((BNX2X_DCBX_STRICT_INVALID == ets->cos_params[1].strict) &&
(DCBX_INVALID_COS_BW == ets->cos_params[1].bw_tbl))) {
BNX2X_ERR("all COS should have at least bw_limit or strict"
"ets->cos_params[0].strict= %x"
"ets->cos_params[0].bw_tbl= %x"
"ets->cos_params[1].strict= %x"
"ets->cos_params[1].bw_tbl= %x",
ets->cos_params[0].strict,
ets->cos_params[0].bw_tbl,
ets->cos_params[1].strict,
ets->cos_params[1].bw_tbl);
return;
}
/* If we join a group and there is bw_tbl and strict then bw rules */
if ((DCBX_INVALID_COS_BW != ets->cos_params[0].bw_tbl) &&
(DCBX_INVALID_COS_BW != ets->cos_params[1].bw_tbl)) {
u32 bw_tbl_0 = ets->cos_params[0].bw_tbl;
u32 bw_tbl_1 = ets->cos_params[1].bw_tbl;
/* Do not allow 0-100 configuration
* since PBF does not support it
* force 1-99 instead
*/
if (bw_tbl_0 == 0) {
bw_tbl_0 = 1;
bw_tbl_1 = 99;
} else if (bw_tbl_1 == 0) {
bw_tbl_1 = 1;
bw_tbl_0 = 99;
}
bnx2x_ets_bw_limit(&bp->link_params, bw_tbl_0, bw_tbl_1);
} else {
if (ets->cos_params[0].strict == BNX2X_DCBX_STRICT_COS_HIGHEST)
rc = bnx2x_ets_strict(&bp->link_params, 0);
else if (ets->cos_params[1].strict
== BNX2X_DCBX_STRICT_COS_HIGHEST)
rc = bnx2x_ets_strict(&bp->link_params, 1);
if (rc)
BNX2X_ERR("update_ets_params failed\n");
}
}
/*
* In E3B0 the configuration may have more than 2 COS.
*/
void bnx2x_dcbx_update_ets_config(struct bnx2x *bp)
{
struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
struct bnx2x_ets_params ets_params = { 0 };
u8 i;
ets_params.num_of_cos = ets->num_of_cos;
for (i = 0; i < ets->num_of_cos; i++) {
/* COS is SP */
if (ets->cos_params[i].strict != BNX2X_DCBX_STRICT_INVALID) {
if (ets->cos_params[i].bw_tbl != DCBX_INVALID_COS_BW) {
BNX2X_ERR("COS can't be not BW and not SP\n");
return;
}
ets_params.cos[i].state = bnx2x_cos_state_strict;
ets_params.cos[i].params.sp_params.pri =
ets->cos_params[i].strict;
} else { /* COS is BW */
if (ets->cos_params[i].bw_tbl == DCBX_INVALID_COS_BW) {
BNX2X_ERR("COS can't be not BW and not SP\n");
return;
}
ets_params.cos[i].state = bnx2x_cos_state_bw;
ets_params.cos[i].params.bw_params.bw =
(u8)ets->cos_params[i].bw_tbl;
}
}
/* Configure the ETS in HW */
if (bnx2x_ets_e3b0_config(&bp->link_params, &bp->link_vars,
&ets_params)) {
BNX2X_ERR("bnx2x_ets_e3b0_config failed\n");
bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
}
}
static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp)
{
bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
if (!bp->dcbx_port_params.ets.enabled ||
(bp->dcbx_error & DCBX_REMOTE_MIB_ERROR))
return;
if (CHIP_IS_E3B0(bp))
bnx2x_dcbx_update_ets_config(bp);
else
bnx2x_dcbx_2cos_limit_update_ets_config(bp);
}
#ifdef BCM_DCBNL
static int bnx2x_dcbx_read_shmem_remote_mib(struct bnx2x *bp)
{
struct lldp_remote_mib remote_mib = {0};
u32 dcbx_remote_mib_offset = SHMEM2_RD(bp, dcbx_remote_mib_offset);
int rc;
DP(NETIF_MSG_LINK, "dcbx_remote_mib_offset 0x%x\n",
dcbx_remote_mib_offset);
if (SHMEM_DCBX_REMOTE_MIB_NONE == dcbx_remote_mib_offset) {
BNX2X_ERR("FW doesn't support dcbx_remote_mib_offset\n");
return -EINVAL;
}
rc = bnx2x_dcbx_read_mib(bp, (u32 *)&remote_mib, dcbx_remote_mib_offset,
DCBX_READ_REMOTE_MIB);
if (rc) {
BNX2X_ERR("Faild to read remote mib from FW\n");
return rc;
}
/* save features and flags */
bp->dcbx_remote_feat = remote_mib.features;
bp->dcbx_remote_flags = remote_mib.flags;
return 0;
}
#endif
static int bnx2x_dcbx_read_shmem_neg_results(struct bnx2x *bp)
{
struct lldp_local_mib local_mib = {0};
u32 dcbx_neg_res_offset = SHMEM2_RD(bp, dcbx_neg_res_offset);
int rc;
DP(NETIF_MSG_LINK, "dcbx_neg_res_offset 0x%x\n", dcbx_neg_res_offset);
if (SHMEM_DCBX_NEG_RES_NONE == dcbx_neg_res_offset) {
BNX2X_ERR("FW doesn't support dcbx_neg_res_offset\n");
return -EINVAL;
}
rc = bnx2x_dcbx_read_mib(bp, (u32 *)&local_mib, dcbx_neg_res_offset,
DCBX_READ_LOCAL_MIB);
if (rc) {
BNX2X_ERR("Faild to read local mib from FW\n");
return rc;
}
/* save features and error */
bp->dcbx_local_feat = local_mib.features;
bp->dcbx_error = local_mib.error;
return 0;
}
#ifdef BCM_DCBNL
static inline
u8 bnx2x_dcbx_dcbnl_app_up(struct dcbx_app_priority_entry *ent)
{
u8 pri;
/* Choose the highest priority */
for (pri = MAX_PFC_PRIORITIES - 1; pri > 0; pri--)
if (ent->pri_bitmap & (1 << pri))
break;
return pri;
}
static inline
u8 bnx2x_dcbx_dcbnl_app_idtype(struct dcbx_app_priority_entry *ent)
{
return ((ent->appBitfield & DCBX_APP_ENTRY_SF_MASK) ==
DCBX_APP_SF_PORT) ? DCB_APP_IDTYPE_PORTNUM :
DCB_APP_IDTYPE_ETHTYPE;
}
int bnx2x_dcbnl_update_applist(struct bnx2x *bp, bool delall)
{
int i, err = 0;
for (i = 0; i < DCBX_MAX_APP_PROTOCOL && err == 0; i++) {
struct dcbx_app_priority_entry *ent =
&bp->dcbx_local_feat.app.app_pri_tbl[i];
if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
u8 up = bnx2x_dcbx_dcbnl_app_up(ent);
/* avoid invalid user-priority */
if (up) {
struct dcb_app app;
app.selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
app.protocol = ent->app_id;
app.priority = delall ? 0 : up;
err = dcb_setapp(bp->dev, &app);
}
}
}
return err;
}
#endif
static inline void bnx2x_update_drv_flags(struct bnx2x *bp, u32 flags, u32 set)
{
if (SHMEM2_HAS(bp, drv_flags)) {
u32 drv_flags;
bnx2x_acquire_hw_lock(bp, HW_LOCK_DRV_FLAGS);
drv_flags = SHMEM2_RD(bp, drv_flags);
if (set)
SET_FLAGS(drv_flags, flags);
else
RESET_FLAGS(drv_flags, flags);
SHMEM2_WR(bp, drv_flags, drv_flags);
DP(NETIF_MSG_HW, "drv_flags 0x%08x\n", drv_flags);
bnx2x_release_hw_lock(bp, HW_LOCK_DRV_FLAGS);
}
}
static inline void bnx2x_dcbx_update_tc_mapping(struct bnx2x *bp)
{
u8 prio, cos;
for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++) {
for (prio = 0; prio < BNX2X_MAX_PRIORITY; prio++) {
if (bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask
& (1 << prio)) {
bp->prio_to_cos[prio] = cos;
DP(NETIF_MSG_LINK,
"tx_mapping %d --> %d\n", prio, cos);
}
}
}
/* setup tc must be called under rtnl lock, but we can't take it here
* as we are handling an attetntion on a work queue which must be
* flushed at some rtnl-locked contexts (e.g. if down)
*/
if (!test_and_set_bit(BNX2X_SP_RTNL_SETUP_TC, &bp->sp_rtnl_state))
schedule_delayed_work(&bp->sp_rtnl_task, 0);
}
void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state)
{
switch (state) {
case BNX2X_DCBX_STATE_NEG_RECEIVED:
{
DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_NEG_RECEIVED\n");
#ifdef BCM_DCBNL
/**
* Delete app tlvs from dcbnl before reading new
* negotiation results
*/
bnx2x_dcbnl_update_applist(bp, true);
/* Read rmeote mib if dcbx is in the FW */
if (bnx2x_dcbx_read_shmem_remote_mib(bp))
return;
#endif
/* Read neg results if dcbx is in the FW */
if (bnx2x_dcbx_read_shmem_neg_results(bp))
return;
bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
bp->dcbx_error);
bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
bp->dcbx_error);
/* mark DCBX result for PMF migration */
bnx2x_update_drv_flags(bp, DRV_FLAGS_DCB_CONFIGURED, 1);
#ifdef BCM_DCBNL
/**
* Add new app tlvs to dcbnl
*/
bnx2x_dcbnl_update_applist(bp, false);
#endif
bnx2x_dcbx_stop_hw_tx(bp);
/* reconfigure the netdevice with the results of the new
* dcbx negotiation.
*/
bnx2x_dcbx_update_tc_mapping(bp);
return;
}
case BNX2X_DCBX_STATE_TX_PAUSED:
DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_TX_PAUSED\n");
bnx2x_pfc_set_pfc(bp);
bnx2x_dcbx_update_ets_params(bp);
bnx2x_dcbx_resume_hw_tx(bp);
return;
case BNX2X_DCBX_STATE_TX_RELEASED:
DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_TX_RELEASED\n");
bnx2x_fw_command(bp, DRV_MSG_CODE_DCBX_PMF_DRV_OK, 0);
#ifdef BCM_DCBNL
/*
* Send a notification for the new negotiated parameters
*/
dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0);
#endif
return;
default:
BNX2X_ERR("Unknown DCBX_STATE\n");
}
}
#define LLDP_ADMIN_MIB_OFFSET(bp) (PORT_MAX*sizeof(struct lldp_params) + \
BP_PORT(bp)*sizeof(struct lldp_admin_mib))
static void bnx2x_dcbx_admin_mib_updated_params(struct bnx2x *bp,
u32 dcbx_lldp_params_offset)
{
struct lldp_admin_mib admin_mib;
u32 i, other_traf_type = PREDEFINED_APP_IDX_MAX, traf_type = 0;
u32 offset = dcbx_lldp_params_offset + LLDP_ADMIN_MIB_OFFSET(bp);
/*shortcuts*/
struct dcbx_features *af = &admin_mib.features;
struct bnx2x_config_dcbx_params *dp = &bp->dcbx_config_params;
memset(&admin_mib, 0, sizeof(struct lldp_admin_mib));
/* Read the data first */
bnx2x_read_data(bp, (u32 *)&admin_mib, offset,
sizeof(struct lldp_admin_mib));
if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON)
SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
else
RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED);
if (dp->overwrite_settings == BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE) {
RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_CEE_VERSION_MASK);
admin_mib.ver_cfg_flags |=
(dp->admin_dcbx_version << DCBX_CEE_VERSION_SHIFT) &
DCBX_CEE_VERSION_MASK;
af->ets.enabled = (u8)dp->admin_ets_enable;
af->pfc.enabled = (u8)dp->admin_pfc_enable;
/* FOR IEEE dp->admin_tc_supported_tx_enable */
if (dp->admin_ets_configuration_tx_enable)
SET_FLAGS(admin_mib.ver_cfg_flags,
DCBX_ETS_CONFIG_TX_ENABLED);
else
RESET_FLAGS(admin_mib.ver_cfg_flags,
DCBX_ETS_CONFIG_TX_ENABLED);
/* For IEEE admin_ets_recommendation_tx_enable */
if (dp->admin_pfc_tx_enable)
SET_FLAGS(admin_mib.ver_cfg_flags,
DCBX_PFC_CONFIG_TX_ENABLED);
else
RESET_FLAGS(admin_mib.ver_cfg_flags,
DCBX_PFC_CONFIG_TX_ENABLED);
if (dp->admin_application_priority_tx_enable)
SET_FLAGS(admin_mib.ver_cfg_flags,
DCBX_APP_CONFIG_TX_ENABLED);
else
RESET_FLAGS(admin_mib.ver_cfg_flags,
DCBX_APP_CONFIG_TX_ENABLED);
if (dp->admin_ets_willing)
SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
else
RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING);
/* For IEEE admin_ets_reco_valid */
if (dp->admin_pfc_willing)
SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
else
RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING);
if (dp->admin_app_priority_willing)
SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
else
RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING);
for (i = 0 ; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++) {
DCBX_PG_BW_SET(af->ets.pg_bw_tbl, i,
(u8)dp->admin_configuration_bw_precentage[i]);
DP(NETIF_MSG_LINK, "pg_bw_tbl[%d] = %02x\n",
i, DCBX_PG_BW_GET(af->ets.pg_bw_tbl, i));
}
for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
DCBX_PRI_PG_SET(af->ets.pri_pg_tbl, i,
(u8)dp->admin_configuration_ets_pg[i]);
DP(NETIF_MSG_LINK, "pri_pg_tbl[%d] = %02x\n",
i, DCBX_PRI_PG_GET(af->ets.pri_pg_tbl, i));
}
/*For IEEE admin_recommendation_bw_precentage
*For IEEE admin_recommendation_ets_pg */
af->pfc.pri_en_bitmap = (u8)dp->admin_pfc_bitmap;
for (i = 0; i < 4; i++) {
if (dp->admin_priority_app_table[i].valid) {
struct bnx2x_admin_priority_app_table *table =
dp->admin_priority_app_table;
if ((ETH_TYPE_FCOE == table[i].app_id) &&
(TRAFFIC_TYPE_ETH == table[i].traffic_type))
traf_type = FCOE_APP_IDX;
else if ((TCP_PORT_ISCSI == table[i].app_id) &&
(TRAFFIC_TYPE_PORT == table[i].traffic_type))
traf_type = ISCSI_APP_IDX;
else
traf_type = other_traf_type++;
af->app.app_pri_tbl[traf_type].app_id =
table[i].app_id;
af->app.app_pri_tbl[traf_type].pri_bitmap =
(u8)(1 << table[i].priority);
af->app.app_pri_tbl[traf_type].appBitfield =
(DCBX_APP_ENTRY_VALID);
af->app.app_pri_tbl[traf_type].appBitfield |=
(TRAFFIC_TYPE_ETH == table[i].traffic_type) ?
DCBX_APP_SF_ETH_TYPE : DCBX_APP_SF_PORT;
}
}
af->app.default_pri = (u8)dp->admin_default_priority;
}
/* Write the data. */
bnx2x_write_data(bp, (u32 *)&admin_mib, offset,
sizeof(struct lldp_admin_mib));
}
void bnx2x_dcbx_set_state(struct bnx2x *bp, bool dcb_on, u32 dcbx_enabled)
{
if (!CHIP_IS_E1x(bp) && !CHIP_IS_E3(bp)) {
bp->dcb_state = dcb_on;
bp->dcbx_enabled = dcbx_enabled;
} else {
bp->dcb_state = false;
bp->dcbx_enabled = BNX2X_DCBX_ENABLED_INVALID;
}
DP(NETIF_MSG_LINK, "DCB state [%s:%s]\n",
dcb_on ? "ON" : "OFF",
dcbx_enabled == BNX2X_DCBX_ENABLED_OFF ? "user-mode" :
dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF ? "on-chip static" :
dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_ON ?
"on-chip with negotiation" : "invalid");
}
void bnx2x_dcbx_init_params(struct bnx2x *bp)
{
bp->dcbx_config_params.admin_dcbx_version = 0x0; /* 0 - CEE; 1 - IEEE */
bp->dcbx_config_params.admin_ets_willing = 1;
bp->dcbx_config_params.admin_pfc_willing = 1;
bp->dcbx_config_params.overwrite_settings = 1;
bp->dcbx_config_params.admin_ets_enable = 1;
bp->dcbx_config_params.admin_pfc_enable = 1;
bp->dcbx_config_params.admin_tc_supported_tx_enable = 1;
bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
bp->dcbx_config_params.admin_pfc_tx_enable = 1;
bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
bp->dcbx_config_params.admin_ets_reco_valid = 1;
bp->dcbx_config_params.admin_app_priority_willing = 1;
bp->dcbx_config_params.admin_configuration_bw_precentage[0] = 00;
bp->dcbx_config_params.admin_configuration_bw_precentage[1] = 50;
bp->dcbx_config_params.admin_configuration_bw_precentage[2] = 50;
bp->dcbx_config_params.admin_configuration_bw_precentage[3] = 0;
bp->dcbx_config_params.admin_configuration_bw_precentage[4] = 0;
bp->dcbx_config_params.admin_configuration_bw_precentage[5] = 0;
bp->dcbx_config_params.admin_configuration_bw_precentage[6] = 0;
bp->dcbx_config_params.admin_configuration_bw_precentage[7] = 0;
bp->dcbx_config_params.admin_configuration_ets_pg[0] = 1;
bp->dcbx_config_params.admin_configuration_ets_pg[1] = 0;
bp->dcbx_config_params.admin_configuration_ets_pg[2] = 0;
bp->dcbx_config_params.admin_configuration_ets_pg[3] = 2;
bp->dcbx_config_params.admin_configuration_ets_pg[4] = 0;
bp->dcbx_config_params.admin_configuration_ets_pg[5] = 0;
bp->dcbx_config_params.admin_configuration_ets_pg[6] = 0;
bp->dcbx_config_params.admin_configuration_ets_pg[7] = 0;
bp->dcbx_config_params.admin_recommendation_bw_precentage[0] = 0;
bp->dcbx_config_params.admin_recommendation_bw_precentage[1] = 1;
bp->dcbx_config_params.admin_recommendation_bw_precentage[2] = 2;
bp->dcbx_config_params.admin_recommendation_bw_precentage[3] = 0;
bp->dcbx_config_params.admin_recommendation_bw_precentage[4] = 7;
bp->dcbx_config_params.admin_recommendation_bw_precentage[5] = 5;
bp->dcbx_config_params.admin_recommendation_bw_precentage[6] = 6;
bp->dcbx_config_params.admin_recommendation_bw_precentage[7] = 7;
bp->dcbx_config_params.admin_recommendation_ets_pg[0] = 0;
bp->dcbx_config_params.admin_recommendation_ets_pg[1] = 1;
bp->dcbx_config_params.admin_recommendation_ets_pg[2] = 2;
bp->dcbx_config_params.admin_recommendation_ets_pg[3] = 3;
bp->dcbx_config_params.admin_recommendation_ets_pg[4] = 4;
bp->dcbx_config_params.admin_recommendation_ets_pg[5] = 5;
bp->dcbx_config_params.admin_recommendation_ets_pg[6] = 6;
bp->dcbx_config_params.admin_recommendation_ets_pg[7] = 7;
bp->dcbx_config_params.admin_pfc_bitmap = 0x8; /* FCoE(3) enable */
bp->dcbx_config_params.admin_priority_app_table[0].valid = 1;
bp->dcbx_config_params.admin_priority_app_table[1].valid = 1;
bp->dcbx_config_params.admin_priority_app_table[2].valid = 0;
bp->dcbx_config_params.admin_priority_app_table[3].valid = 0;
bp->dcbx_config_params.admin_priority_app_table[0].priority = 3;
bp->dcbx_config_params.admin_priority_app_table[1].priority = 0;
bp->dcbx_config_params.admin_priority_app_table[2].priority = 0;
bp->dcbx_config_params.admin_priority_app_table[3].priority = 0;
bp->dcbx_config_params.admin_priority_app_table[0].traffic_type = 0;
bp->dcbx_config_params.admin_priority_app_table[1].traffic_type = 1;
bp->dcbx_config_params.admin_priority_app_table[2].traffic_type = 0;
bp->dcbx_config_params.admin_priority_app_table[3].traffic_type = 0;
bp->dcbx_config_params.admin_priority_app_table[0].app_id = 0x8906;
bp->dcbx_config_params.admin_priority_app_table[1].app_id = 3260;
bp->dcbx_config_params.admin_priority_app_table[2].app_id = 0;
bp->dcbx_config_params.admin_priority_app_table[3].app_id = 0;
bp->dcbx_config_params.admin_default_priority =
bp->dcbx_config_params.admin_priority_app_table[1].priority;
}
void bnx2x_dcbx_init(struct bnx2x *bp)
{
u32 dcbx_lldp_params_offset = SHMEM_LLDP_DCBX_PARAMS_NONE;
if (bp->dcbx_enabled <= 0)
return;
/* validate:
* chip of good for dcbx version,
* dcb is wanted
* the function is pmf
* shmem2 contains DCBX support fields
*/
DP(NETIF_MSG_LINK, "dcb_state %d bp->port.pmf %d\n",
bp->dcb_state, bp->port.pmf);
if (bp->dcb_state == BNX2X_DCB_STATE_ON && bp->port.pmf &&
SHMEM2_HAS(bp, dcbx_lldp_params_offset)) {
dcbx_lldp_params_offset =
SHMEM2_RD(bp, dcbx_lldp_params_offset);
DP(NETIF_MSG_LINK, "dcbx_lldp_params_offset 0x%x\n",
dcbx_lldp_params_offset);
bnx2x_update_drv_flags(bp, DRV_FLAGS_DCB_CONFIGURED, 0);
if (SHMEM_LLDP_DCBX_PARAMS_NONE != dcbx_lldp_params_offset) {
bnx2x_dcbx_admin_mib_updated_params(bp,
dcbx_lldp_params_offset);
/* Let HW start negotiation */
bnx2x_fw_command(bp,
DRV_MSG_CODE_DCBX_ADMIN_PMF_MSG, 0);
}
}
}
static void
bnx2x_dcbx_print_cos_params(struct bnx2x *bp,
struct bnx2x_func_tx_start_params *pfc_fw_cfg)
{
u8 pri = 0;
u8 cos = 0;
DP(NETIF_MSG_LINK,
"pfc_fw_cfg->dcb_version %x\n", pfc_fw_cfg->dcb_version);
DP(NETIF_MSG_LINK,
"pdev->params.dcbx_port_params.pfc."
"priority_non_pauseable_mask %x\n",
bp->dcbx_port_params.pfc.priority_non_pauseable_mask);
for (cos = 0 ; cos < bp->dcbx_port_params.ets.num_of_cos ; cos++) {
DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets."
"cos_params[%d].pri_bitmask %x\n", cos,
bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask);
DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets."
"cos_params[%d].bw_tbl %x\n", cos,
bp->dcbx_port_params.ets.cos_params[cos].bw_tbl);
DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets."
"cos_params[%d].strict %x\n", cos,
bp->dcbx_port_params.ets.cos_params[cos].strict);
DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets."
"cos_params[%d].pauseable %x\n", cos,
bp->dcbx_port_params.ets.cos_params[cos].pauseable);
}
for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
DP(NETIF_MSG_LINK,
"pfc_fw_cfg->traffic_type_to_priority_cos[%d]."
"priority %x\n", pri,
pfc_fw_cfg->traffic_type_to_priority_cos[pri].priority);
DP(NETIF_MSG_LINK,
"pfc_fw_cfg->traffic_type_to_priority_cos[%d].cos %x\n",
pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].cos);
}
}
/* fills help_data according to pg_info */
static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp,
u32 *pg_pri_orginal_spread,
struct pg_help_data *help_data)
{
bool pg_found = false;
u32 i, traf_type, add_traf_type, add_pg;
u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
struct pg_entry_help_data *data = help_data->data; /*shotcut*/
/* Set to invalid */
for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++)
data[i].pg = DCBX_ILLEGAL_PG;
for (add_traf_type = 0;
add_traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX; add_traf_type++) {
pg_found = false;
if (ttp[add_traf_type] < MAX_PFC_PRIORITIES) {
add_pg = (u8)pg_pri_orginal_spread[ttp[add_traf_type]];
for (traf_type = 0;
traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX;
traf_type++) {
if (data[traf_type].pg == add_pg) {
if (!(data[traf_type].pg_priority &
(1 << ttp[add_traf_type])))
data[traf_type].
num_of_dif_pri++;
data[traf_type].pg_priority |=
(1 << ttp[add_traf_type]);
pg_found = true;
break;
}
}
if (false == pg_found) {
data[help_data->num_of_pg].pg = add_pg;
data[help_data->num_of_pg].pg_priority =
(1 << ttp[add_traf_type]);
data[help_data->num_of_pg].num_of_dif_pri = 1;
help_data->num_of_pg++;
}
}
DP(NETIF_MSG_LINK,
"add_traf_type %d pg_found %s num_of_pg %d\n",
add_traf_type, (false == pg_found) ? "NO" : "YES",
help_data->num_of_pg);
}
}
static void bnx2x_dcbx_ets_disabled_entry_data(struct bnx2x *bp,
struct cos_help_data *cos_data,
u32 pri_join_mask)
{
/* Only one priority than only one COS */
cos_data->data[0].pausable =
IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
cos_data->data[0].pri_join_mask = pri_join_mask;
cos_data->data[0].cos_bw = 100;
cos_data->num_of_cos = 1;
}
static inline void bnx2x_dcbx_add_to_cos_bw(struct bnx2x *bp,
struct cos_entry_help_data *data,
u8 pg_bw)
{
if (data->cos_bw == DCBX_INVALID_COS_BW)
data->cos_bw = pg_bw;
else
data->cos_bw += pg_bw;
}
static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp,
struct cos_help_data *cos_data,
u32 *pg_pri_orginal_spread,
struct dcbx_ets_feature *ets)
{
u32 pri_tested = 0;
u8 i = 0;
u8 entry = 0;
u8 pg_entry = 0;
u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX;
cos_data->data[0].pausable = true;
cos_data->data[1].pausable = false;
cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
for (i = 0 ; i < num_of_pri ; i++) {
pri_tested = 1 << bp->dcbx_port_params.
app.traffic_type_priority[i];
if (pri_tested & DCBX_PFC_PRI_NON_PAUSE_MASK(bp)) {
cos_data->data[1].pri_join_mask |= pri_tested;
entry = 1;
} else {
cos_data->data[0].pri_join_mask |= pri_tested;
entry = 0;
}
pg_entry = (u8)pg_pri_orginal_spread[bp->dcbx_port_params.
app.traffic_type_priority[i]];
/* There can be only one strict pg */
if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES)
bnx2x_dcbx_add_to_cos_bw(bp, &cos_data->data[entry],
DCBX_PG_BW_GET(ets->pg_bw_tbl, pg_entry));
else
/* If we join a group and one is strict
* than the bw rulls */
cos_data->data[entry].strict =
BNX2X_DCBX_STRICT_COS_HIGHEST;
}
if ((0 == cos_data->data[0].pri_join_mask) &&
(0 == cos_data->data[1].pri_join_mask))
BNX2X_ERR("dcbx error: Both groups must have priorities\n");
}
#ifndef POWER_OF_2
#define POWER_OF_2(x) ((0 != x) && (0 == (x & (x-1))))
#endif
static void bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(struct bnx2x *bp,
struct pg_help_data *pg_help_data,
struct cos_help_data *cos_data,
u32 pri_join_mask,
u8 num_of_dif_pri)
{
u8 i = 0;
u32 pri_tested = 0;
u32 pri_mask_without_pri = 0;
u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
/*debug*/
if (num_of_dif_pri == 1) {
bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data, pri_join_mask);
return;
}
/* single priority group */
if (pg_help_data->data[0].pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
/* If there are both pauseable and non-pauseable priorities,
* the pauseable priorities go to the first queue and
* the non-pauseable priorities go to the second queue.
*/
if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
/* Pauseable */
cos_data->data[0].pausable = true;
/* Non pauseable.*/
cos_data->data[1].pausable = false;
if (2 == num_of_dif_pri) {
cos_data->data[0].cos_bw = 50;
cos_data->data[1].cos_bw = 50;
}
if (3 == num_of_dif_pri) {
if (POWER_OF_2(DCBX_PFC_PRI_GET_PAUSE(bp,
pri_join_mask))) {
cos_data->data[0].cos_bw = 33;
cos_data->data[1].cos_bw = 67;
} else {
cos_data->data[0].cos_bw = 67;
cos_data->data[1].cos_bw = 33;
}
}
} else if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask)) {
/* If there are only pauseable priorities,
* then one/two priorities go to the first queue
* and one priority goes to the second queue.
*/
if (2 == num_of_dif_pri) {
cos_data->data[0].cos_bw = 50;
cos_data->data[1].cos_bw = 50;
} else {
cos_data->data[0].cos_bw = 67;
cos_data->data[1].cos_bw = 33;
}
cos_data->data[1].pausable = true;
cos_data->data[0].pausable = true;
/* All priorities except FCOE */
cos_data->data[0].pri_join_mask = (pri_join_mask &
((u8)~(1 << ttp[LLFC_TRAFFIC_TYPE_FCOE])));
/* Only FCOE priority.*/
cos_data->data[1].pri_join_mask =
(1 << ttp[LLFC_TRAFFIC_TYPE_FCOE]);
} else
/* If there are only non-pauseable priorities,
* they will all go to the same queue.
*/
bnx2x_dcbx_ets_disabled_entry_data(bp,
cos_data, pri_join_mask);
} else {
/* priority group which is not BW limited (PG#15):*/
if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
/* If there are both pauseable and non-pauseable
* priorities, the pauseable priorities go to the first
* queue and the non-pauseable priorities
* go to the second queue.
*/
if (DCBX_PFC_PRI_GET_PAUSE(bp, pri_join_mask) >
DCBX_PFC_PRI_GET_NON_PAUSE(bp, pri_join_mask)) {
cos_data->data[0].strict =
BNX2X_DCBX_STRICT_COS_HIGHEST;
cos_data->data[1].strict =
BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
BNX2X_DCBX_STRICT_COS_HIGHEST);
} else {
cos_data->data[0].strict =
BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
BNX2X_DCBX_STRICT_COS_HIGHEST);
cos_data->data[1].strict =
BNX2X_DCBX_STRICT_COS_HIGHEST;
}
/* Pauseable */
cos_data->data[0].pausable = true;
/* Non pause-able.*/
cos_data->data[1].pausable = false;
} else {
/* If there are only pauseable priorities or
* only non-pauseable,* the lower priorities go
* to the first queue and the higherpriorities go
* to the second queue.
*/
cos_data->data[0].pausable =
cos_data->data[1].pausable =
IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
for (i = 0 ; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++) {
pri_tested = 1 << bp->dcbx_port_params.
app.traffic_type_priority[i];
/* Remove priority tested */
pri_mask_without_pri =
(pri_join_mask & ((u8)(~pri_tested)));
if (pri_mask_without_pri < pri_tested)
break;
}
if (i == LLFC_DRIVER_TRAFFIC_TYPE_MAX)
BNX2X_ERR("Invalid value for pri_join_mask -"
" could not find a priority\n");
cos_data->data[0].pri_join_mask = pri_mask_without_pri;
cos_data->data[1].pri_join_mask = pri_tested;
/* Both queues are strict priority,
* and that with the highest priority
* gets the highest strict priority in the arbiter.
*/
cos_data->data[0].strict =
BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(
BNX2X_DCBX_STRICT_COS_HIGHEST);
cos_data->data[1].strict =
BNX2X_DCBX_STRICT_COS_HIGHEST;
}
}
}
static void bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params(
struct bnx2x *bp,
struct pg_help_data *pg_help_data,
struct dcbx_ets_feature *ets,
struct cos_help_data *cos_data,
u32 *pg_pri_orginal_spread,
u32 pri_join_mask,
u8 num_of_dif_pri)
{
u8 i = 0;
u8 pg[DCBX_COS_MAX_NUM_E2] = { 0 };
/* If there are both pauseable and non-pauseable priorities,
* the pauseable priorities go to the first queue and
* the non-pauseable priorities go to the second queue.
*/
if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) {
if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
pg_help_data->data[0].pg_priority) ||
IS_DCBX_PFC_PRI_MIX_PAUSE(bp,
pg_help_data->data[1].pg_priority)) {
/* If one PG contains both pauseable and
* non-pauseable priorities then ETS is disabled.
*/
bnx2x_dcbx_separate_pauseable_from_non(bp, cos_data,
pg_pri_orginal_spread, ets);
bp->dcbx_port_params.ets.enabled = false;
return;
}
/* Pauseable */
cos_data->data[0].pausable = true;
/* Non pauseable. */
cos_data->data[1].pausable = false;
if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp,
pg_help_data->data[0].pg_priority)) {
/* 0 is pauseable */
cos_data->data[0].pri_join_mask =
pg_help_data->data[0].pg_priority;
pg[0] = pg_help_data->data[0].pg;
cos_data->data[1].pri_join_mask =
pg_help_data->data[1].pg_priority;
pg[1] = pg_help_data->data[1].pg;
} else {/* 1 is pauseable */
cos_data->data[0].pri_join_mask =
pg_help_data->data[1].pg_priority;
pg[0] = pg_help_data->data[1].pg;
cos_data->data[1].pri_join_mask =
pg_help_data->data[0].pg_priority;
pg[1] = pg_help_data->data[0].pg;
}
} else {
/* If there are only pauseable priorities or
* only non-pauseable, each PG goes to a queue.
*/
cos_data->data[0].pausable = cos_data->data[1].pausable =
IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
cos_data->data[0].pri_join_mask =
pg_help_data->data[0].pg_priority;
pg[0] = pg_help_data->data[0].pg;
cos_data->data[1].pri_join_mask =
pg_help_data->data[1].pg_priority;
pg[1] = pg_help_data->data[1].pg;
}
/* There can be only one strict pg */
for (i = 0 ; i < ARRAY_SIZE(pg); i++) {
if (pg[i] < DCBX_MAX_NUM_PG_BW_ENTRIES)
cos_data->data[i].cos_bw =
DCBX_PG_BW_GET(ets->pg_bw_tbl, pg[i]);
else
cos_data->data[i].strict =
BNX2X_DCBX_STRICT_COS_HIGHEST;
}
}
static int bnx2x_dcbx_join_pgs(
struct bnx2x *bp,
struct dcbx_ets_feature *ets,
struct pg_help_data *pg_help_data,
u8 required_num_of_pg)
{
u8 entry_joined = pg_help_data->num_of_pg - 1;
u8 entry_removed = entry_joined + 1;
u8 pg_joined = 0;
if (required_num_of_pg == 0 || ARRAY_SIZE(pg_help_data->data)
<= pg_help_data->num_of_pg) {
BNX2X_ERR("required_num_of_pg can't be zero\n");
return -EINVAL;
}
while (required_num_of_pg < pg_help_data->num_of_pg) {
entry_joined = pg_help_data->num_of_pg - 2;
entry_removed = entry_joined + 1;
/* protect index */
entry_removed %= ARRAY_SIZE(pg_help_data->data);
pg_help_data->data[entry_joined].pg_priority |=
pg_help_data->data[entry_removed].pg_priority;
pg_help_data->data[entry_joined].num_of_dif_pri +=
pg_help_data->data[entry_removed].num_of_dif_pri;
if (pg_help_data->data[entry_joined].pg == DCBX_STRICT_PRI_PG ||
pg_help_data->data[entry_removed].pg == DCBX_STRICT_PRI_PG)
/* Entries joined strict priority rules */
pg_help_data->data[entry_joined].pg =
DCBX_STRICT_PRI_PG;
else {
/* Entries can be joined join BW */
pg_joined = DCBX_PG_BW_GET(ets->pg_bw_tbl,
pg_help_data->data[entry_joined].pg) +
DCBX_PG_BW_GET(ets->pg_bw_tbl,
pg_help_data->data[entry_removed].pg);
DCBX_PG_BW_SET(ets->pg_bw_tbl,
pg_help_data->data[entry_joined].pg, pg_joined);
}
/* Joined the entries */
pg_help_data->num_of_pg--;
}
return 0;
}
static void bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
struct bnx2x *bp,
struct pg_help_data *pg_help_data,
struct dcbx_ets_feature *ets,
struct cos_help_data *cos_data,
u32 *pg_pri_orginal_spread,
u32 pri_join_mask,
u8 num_of_dif_pri)
{
u8 i = 0;
u32 pri_tested = 0;
u8 entry = 0;
u8 pg_entry = 0;
bool b_found_strict = false;
u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX;
cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0;
/* If there are both pauseable and non-pauseable priorities,
* the pauseable priorities go to the first queue and the
* non-pauseable priorities go to the second queue.
*/
if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask))
bnx2x_dcbx_separate_pauseable_from_non(bp,
cos_data, pg_pri_orginal_spread, ets);
else {
/* If two BW-limited PG-s were combined to one queue,
* the BW is their sum.
*
* If there are only pauseable priorities or only non-pauseable,
* and there are both BW-limited and non-BW-limited PG-s,
* the BW-limited PG/s go to one queue and the non-BW-limited
* PG/s go to the second queue.
*
* If there are only pauseable priorities or only non-pauseable
* and all are BW limited, then two priorities go to the first
* queue and one priority goes to the second queue.
*
* We will join this two cases:
* if one is BW limited it will go to the secoend queue
* otherwise the last priority will get it
*/
cos_data->data[0].pausable = cos_data->data[1].pausable =
IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask);
for (i = 0 ; i < num_of_pri; i++) {
pri_tested = 1 << bp->dcbx_port_params.
app.traffic_type_priority[i];
pg_entry = (u8)pg_pri_orginal_spread[bp->
dcbx_port_params.app.traffic_type_priority[i]];
if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES) {
entry = 0;
if (i == (num_of_pri-1) &&
false == b_found_strict)
/* last entry will be handled separately
* If no priority is strict than last
* enty goes to last queue.*/
entry = 1;
cos_data->data[entry].pri_join_mask |=
pri_tested;
bnx2x_dcbx_add_to_cos_bw(bp,
&cos_data->data[entry],
DCBX_PG_BW_GET(ets->pg_bw_tbl,
pg_entry));
} else {
b_found_strict = true;
cos_data->data[1].pri_join_mask |= pri_tested;
/* If we join a group and one is strict
* than the bw rulls */
cos_data->data[1].strict =
BNX2X_DCBX_STRICT_COS_HIGHEST;
}
}
}
}
static void bnx2x_dcbx_2cos_limit_cee_fill_cos_params(struct bnx2x *bp,
struct pg_help_data *help_data,
struct dcbx_ets_feature *ets,
struct cos_help_data *cos_data,
u32 *pg_pri_orginal_spread,
u32 pri_join_mask,
u8 num_of_dif_pri)
{
/* default E2 settings */
cos_data->num_of_cos = DCBX_COS_MAX_NUM_E2;
switch (help_data->num_of_pg) {
case 1:
bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params(
bp,
help_data,
cos_data,
pri_join_mask,
num_of_dif_pri);
break;
case 2:
bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params(
bp,
help_data,
ets,
cos_data,
pg_pri_orginal_spread,
pri_join_mask,
num_of_dif_pri);
break;
case 3:
bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params(
bp,
help_data,
ets,
cos_data,
pg_pri_orginal_spread,
pri_join_mask,
num_of_dif_pri);
break;
default:
BNX2X_ERR("Wrong pg_help_data.num_of_pg\n");
bnx2x_dcbx_ets_disabled_entry_data(bp,
cos_data, pri_join_mask);
}
}
static int bnx2x_dcbx_spread_strict_pri(struct bnx2x *bp,
struct cos_help_data *cos_data,
u8 entry,
u8 num_spread_of_entries,
u8 strict_app_pris)
{
u8 strict_pri = BNX2X_DCBX_STRICT_COS_HIGHEST;
u8 num_of_app_pri = MAX_PFC_PRIORITIES;
u8 app_pri_bit = 0;
while (num_spread_of_entries && num_of_app_pri > 0) {
app_pri_bit = 1 << (num_of_app_pri - 1);
if (app_pri_bit & strict_app_pris) {
struct cos_entry_help_data *data = &cos_data->
data[entry];
num_spread_of_entries--;
if (num_spread_of_entries == 0) {
/* last entry needed put all the entries left */
data->cos_bw = DCBX_INVALID_COS_BW;
data->strict = strict_pri;
data->pri_join_mask = strict_app_pris;
data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
data->pri_join_mask);
} else {
strict_app_pris &= ~app_pri_bit;
data->cos_bw = DCBX_INVALID_COS_BW;
data->strict = strict_pri;
data->pri_join_mask = app_pri_bit;
data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
data->pri_join_mask);
}
strict_pri =
BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(strict_pri);
entry++;
}
num_of_app_pri--;
}
if (num_spread_of_entries)
return -EINVAL;
return 0;
}
static u8 bnx2x_dcbx_cee_fill_strict_pri(struct bnx2x *bp,
struct cos_help_data *cos_data,
u8 entry,
u8 num_spread_of_entries,
u8 strict_app_pris)
{
if (bnx2x_dcbx_spread_strict_pri(bp, cos_data, entry,
num_spread_of_entries,
strict_app_pris)) {
struct cos_entry_help_data *data = &cos_data->
data[entry];
/* Fill BW entry */
data->cos_bw = DCBX_INVALID_COS_BW;
data->strict = BNX2X_DCBX_STRICT_COS_HIGHEST;
data->pri_join_mask = strict_app_pris;
data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
data->pri_join_mask);
return 1;
}
return num_spread_of_entries;
}
static void bnx2x_dcbx_cee_fill_cos_params(struct bnx2x *bp,
struct pg_help_data *help_data,
struct dcbx_ets_feature *ets,
struct cos_help_data *cos_data,
u32 pri_join_mask)
{
u8 need_num_of_entries = 0;
u8 i = 0;
u8 entry = 0;
/*
* if the number of requested PG-s in CEE is greater than 3
* then the results are not determined since this is a violation
* of the standard.
*/
if (help_data->num_of_pg > DCBX_COS_MAX_NUM_E3B0) {
if (bnx2x_dcbx_join_pgs(bp, ets, help_data,
DCBX_COS_MAX_NUM_E3B0)) {
BNX2X_ERR("Unable to reduce the number of PGs -"
"we will disables ETS\n");
bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data,
pri_join_mask);
return;
}
}
for (i = 0 ; i < help_data->num_of_pg; i++) {
struct pg_entry_help_data *pg = &help_data->data[i];
if (pg->pg < DCBX_MAX_NUM_PG_BW_ENTRIES) {
struct cos_entry_help_data *data = &cos_data->
data[entry];
/* Fill BW entry */
data->cos_bw = DCBX_PG_BW_GET(ets->pg_bw_tbl, pg->pg);
data->strict = BNX2X_DCBX_STRICT_INVALID;
data->pri_join_mask = pg->pg_priority;
data->pausable = DCBX_IS_PFC_PRI_SOME_PAUSE(bp,
data->pri_join_mask);
entry++;
} else {
need_num_of_entries = min_t(u8,
(u8)pg->num_of_dif_pri,
(u8)DCBX_COS_MAX_NUM_E3B0 -
help_data->num_of_pg + 1);
/*
* If there are still VOQ-s which have no associated PG,
* then associate these VOQ-s to PG15. These PG-s will
* be used for SP between priorities on PG15.
*/
entry += bnx2x_dcbx_cee_fill_strict_pri(bp, cos_data,
entry, need_num_of_entries, pg->pg_priority);
}
}
/* the entry will represent the number of COSes used */
cos_data->num_of_cos = entry;
}
static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp,
struct pg_help_data *help_data,
struct dcbx_ets_feature *ets,
u32 *pg_pri_orginal_spread)
{
struct cos_help_data cos_data;
u8 i = 0;
u32 pri_join_mask = 0;
u8 num_of_dif_pri = 0;
memset(&cos_data, 0, sizeof(cos_data));
/* Validate the pg value */
for (i = 0; i < help_data->num_of_pg ; i++) {
if (DCBX_STRICT_PRIORITY != help_data->data[i].pg &&
DCBX_MAX_NUM_PG_BW_ENTRIES <= help_data->data[i].pg)
BNX2X_ERR("Invalid pg[%d] data %x\n", i,
help_data->data[i].pg);
pri_join_mask |= help_data->data[i].pg_priority;
num_of_dif_pri += help_data->data[i].num_of_dif_pri;
}
/* defaults */
cos_data.num_of_cos = 1;
for (i = 0; i < ARRAY_SIZE(cos_data.data); i++) {
cos_data.data[i].pri_join_mask = 0;
cos_data.data[i].pausable = false;
cos_data.data[i].strict = BNX2X_DCBX_STRICT_INVALID;
cos_data.data[i].cos_bw = DCBX_INVALID_COS_BW;
}
if (CHIP_IS_E3B0(bp))
bnx2x_dcbx_cee_fill_cos_params(bp, help_data, ets,
&cos_data, pri_join_mask);
else /* E2 + E3A0 */
bnx2x_dcbx_2cos_limit_cee_fill_cos_params(bp,
help_data, ets,
&cos_data,
pg_pri_orginal_spread,
pri_join_mask,
num_of_dif_pri);
for (i = 0; i < cos_data.num_of_cos ; i++) {
struct bnx2x_dcbx_cos_params *p =
&bp->dcbx_port_params.ets.cos_params[i];
p->strict = cos_data.data[i].strict;
p->bw_tbl = cos_data.data[i].cos_bw;
p->pri_bitmask = cos_data.data[i].pri_join_mask;
p->pauseable = cos_data.data[i].pausable;
/* sanity */
if (p->bw_tbl != DCBX_INVALID_COS_BW ||
p->strict != BNX2X_DCBX_STRICT_INVALID) {
if (p->pri_bitmask == 0)
BNX2X_ERR("Invalid pri_bitmask for %d\n", i);
if (CHIP_IS_E2(bp) || CHIP_IS_E3A0(bp)) {
if (p->pauseable &&
DCBX_PFC_PRI_GET_NON_PAUSE(bp,
p->pri_bitmask) != 0)
BNX2X_ERR("Inconsistent config for "
"pausable COS %d\n", i);
if (!p->pauseable &&
DCBX_PFC_PRI_GET_PAUSE(bp,
p->pri_bitmask) != 0)
BNX2X_ERR("Inconsistent config for "
"nonpausable COS %d\n", i);
}
}
if (p->pauseable)
DP(NETIF_MSG_LINK, "COS %d PAUSABLE prijoinmask 0x%x\n",
i, cos_data.data[i].pri_join_mask);
else
DP(NETIF_MSG_LINK, "COS %d NONPAUSABLE prijoinmask "
"0x%x\n",
i, cos_data.data[i].pri_join_mask);
}
bp->dcbx_port_params.ets.num_of_cos = cos_data.num_of_cos ;
}
static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
u32 *set_configuration_ets_pg,
u32 *pri_pg_tbl)
{
int i;
for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) {
set_configuration_ets_pg[i] = DCBX_PRI_PG_GET(pri_pg_tbl, i);
DP(NETIF_MSG_LINK, "set_configuration_ets_pg[%d] = 0x%x\n",
i, set_configuration_ets_pg[i]);
}
}
static void bnx2x_dcbx_fw_struct(struct bnx2x *bp,
struct bnx2x_func_tx_start_params *pfc_fw_cfg)
{
u16 pri_bit = 0;
u8 cos = 0, pri = 0;
struct priority_cos *tt2cos;
u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
memset(pfc_fw_cfg, 0, sizeof(*pfc_fw_cfg));
/* to disable DCB - the structure must be zeroed */
if (bp->dcbx_error & DCBX_REMOTE_MIB_ERROR)
return;
/*shortcut*/
tt2cos = pfc_fw_cfg->traffic_type_to_priority_cos;
/* Fw version should be incremented each update */
pfc_fw_cfg->dcb_version = ++bp->dcb_version;
pfc_fw_cfg->dcb_enabled = 1;
/* Fill priority parameters */
for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) {
tt2cos[pri].priority = ttp[pri];
pri_bit = 1 << tt2cos[pri].priority;
/* Fill COS parameters based on COS calculated to
* make it more general for future use */
for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++)
if (bp->dcbx_port_params.ets.cos_params[cos].
pri_bitmask & pri_bit)
tt2cos[pri].cos = cos;
}
/* we never want the FW to add a 0 vlan tag */
pfc_fw_cfg->dont_add_pri_0_en = 1;
bnx2x_dcbx_print_cos_params(bp, pfc_fw_cfg);
}
void bnx2x_dcbx_pmf_update(struct bnx2x *bp)
{
/* if we need to syncronize DCBX result from prev PMF
* read it from shmem and update bp accordingly
*/
if (SHMEM2_HAS(bp, drv_flags) &&
GET_FLAGS(SHMEM2_RD(bp, drv_flags), DRV_FLAGS_DCB_CONFIGURED)) {
/* Read neg results if dcbx is in the FW */
if (bnx2x_dcbx_read_shmem_neg_results(bp))
return;
bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat,
bp->dcbx_error);
bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat,
bp->dcbx_error);
}
}
/* DCB netlink */
#ifdef BCM_DCBNL
#define BNX2X_DCBX_CAPS (DCB_CAP_DCBX_LLD_MANAGED | \
DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_STATIC)
static inline bool bnx2x_dcbnl_set_valid(struct bnx2x *bp)
{
/* validate dcbnl call that may change HW state:
* DCB is on and DCBX mode was SUCCESSFULLY set by the user.
*/
return bp->dcb_state && bp->dcbx_mode_uset;
}
static u8 bnx2x_dcbnl_get_state(struct net_device *netdev)
{
struct bnx2x *bp = netdev_priv(netdev);
DP(NETIF_MSG_LINK, "state = %d\n", bp->dcb_state);
return bp->dcb_state;
}
static u8 bnx2x_dcbnl_set_state(struct net_device *netdev, u8 state)
{
struct bnx2x *bp = netdev_priv(netdev);
DP(NETIF_MSG_LINK, "state = %s\n", state ? "on" : "off");
bnx2x_dcbx_set_state(bp, (state ? true : false), bp->dcbx_enabled);
return 0;
}
static void bnx2x_dcbnl_get_perm_hw_addr(struct net_device *netdev,
u8 *perm_addr)
{
struct bnx2x *bp = netdev_priv(netdev);
DP(NETIF_MSG_LINK, "GET-PERM-ADDR\n");
/* first the HW mac address */
memcpy(perm_addr, netdev->dev_addr, netdev->addr_len);
#ifdef BCM_CNIC
/* second SAN address */
memcpy(perm_addr+netdev->addr_len, bp->fip_mac, netdev->addr_len);
#endif
}
static void bnx2x_dcbnl_set_pg_tccfg_tx(struct net_device *netdev, int prio,
u8 prio_type, u8 pgid, u8 bw_pct,
u8 up_map)
{
struct bnx2x *bp = netdev_priv(netdev);
DP(NETIF_MSG_LINK, "prio[%d] = %d\n", prio, pgid);
if (!bnx2x_dcbnl_set_valid(bp) || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
return;
/**
* bw_pct ingnored - band-width percentage devision between user
* priorities within the same group is not
* standard and hence not supported
*
* prio_type igonred - priority levels within the same group are not
* standard and hence are not supported. According
* to the standard pgid 15 is dedicated to strict
* prioirty traffic (on the port level).
*
* up_map ignored
*/
bp->dcbx_config_params.admin_configuration_ets_pg[prio] = pgid;
bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
}
static void bnx2x_dcbnl_set_pg_bwgcfg_tx(struct net_device *netdev,
int pgid, u8 bw_pct)
{
struct bnx2x *bp = netdev_priv(netdev);
DP(NETIF_MSG_LINK, "pgid[%d] = %d\n", pgid, bw_pct);
if (!bnx2x_dcbnl_set_valid(bp) || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
return;
bp->dcbx_config_params.admin_configuration_bw_precentage[pgid] = bw_pct;
bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1;
}
static void bnx2x_dcbnl_set_pg_tccfg_rx(struct net_device *netdev, int prio,
u8 prio_type, u8 pgid, u8 bw_pct,
u8 up_map)
{
struct bnx2x *bp = netdev_priv(netdev);
DP(NETIF_MSG_LINK, "Nothing to set; No RX support\n");
}
static void bnx2x_dcbnl_set_pg_bwgcfg_rx(struct net_device *netdev,
int pgid, u8 bw_pct)
{
struct bnx2x *bp = netdev_priv(netdev);
DP(NETIF_MSG_LINK, "Nothing to set; No RX support\n");
}
static void bnx2x_dcbnl_get_pg_tccfg_tx(struct net_device *netdev, int prio,
u8 *prio_type, u8 *pgid, u8 *bw_pct,
u8 *up_map)
{
struct bnx2x *bp = netdev_priv(netdev);
DP(NETIF_MSG_LINK, "prio = %d\n", prio);
/**
* bw_pct ingnored - band-width percentage devision between user
* priorities within the same group is not
* standard and hence not supported
*
* prio_type igonred - priority levels within the same group are not
* standard and hence are not supported. According
* to the standard pgid 15 is dedicated to strict
* prioirty traffic (on the port level).
*
* up_map ignored
*/
*up_map = *bw_pct = *prio_type = *pgid = 0;
if (!bp->dcb_state || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
return;
*pgid = DCBX_PRI_PG_GET(bp->dcbx_local_feat.ets.pri_pg_tbl, prio);
}
static void bnx2x_dcbnl_get_pg_bwgcfg_tx(struct net_device *netdev,
int pgid, u8 *bw_pct)
{
struct bnx2x *bp = netdev_priv(netdev);
DP(NETIF_MSG_LINK, "pgid = %d\n", pgid);
*bw_pct = 0;
if (!bp->dcb_state || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES)
return;
*bw_pct = DCBX_PG_BW_GET(bp->dcbx_local_feat.ets.pg_bw_tbl, pgid);
}
static void bnx2x_dcbnl_get_pg_tccfg_rx(struct net_device *netdev, int prio,
u8 *prio_type, u8 *pgid, u8 *bw_pct,
u8 *up_map)
{
struct bnx2x *bp = netdev_priv(netdev);
DP(NETIF_MSG_LINK, "Nothing to get; No RX support\n");
*prio_type = *pgid = *bw_pct = *up_map = 0;
}
static void bnx2x_dcbnl_get_pg_bwgcfg_rx(struct net_device *netdev,
int pgid, u8 *bw_pct)
{
struct bnx2x *bp = netdev_priv(netdev);
DP(NETIF_MSG_LINK, "Nothing to get; No RX support\n");
*bw_pct = 0;
}
static void bnx2x_dcbnl_set_pfc_cfg(struct net_device *netdev, int prio,
u8 setting)
{
struct bnx2x *bp = netdev_priv(netdev);
DP(NETIF_MSG_LINK, "prio[%d] = %d\n", prio, setting);
if (!bnx2x_dcbnl_set_valid(bp) || prio >= MAX_PFC_PRIORITIES)
return;
bp->dcbx_config_params.admin_pfc_bitmap |= ((setting ? 1 : 0) << prio);
if (setting)
bp->dcbx_config_params.admin_pfc_tx_enable = 1;
}
static void bnx2x_dcbnl_get_pfc_cfg(struct net_device *netdev, int prio,
u8 *setting)
{
struct bnx2x *bp = netdev_priv(netdev);
DP(NETIF_MSG_LINK, "prio = %d\n", prio);
*setting = 0;
if (!bp->dcb_state || prio >= MAX_PFC_PRIORITIES)
return;
*setting = (bp->dcbx_local_feat.pfc.pri_en_bitmap >> prio) & 0x1;
}
static u8 bnx2x_dcbnl_set_all(struct net_device *netdev)
{
struct bnx2x *bp = netdev_priv(netdev);
int rc = 0;
DP(NETIF_MSG_LINK, "SET-ALL\n");
if (!bnx2x_dcbnl_set_valid(bp))
return 1;
if (bp->recovery_state != BNX2X_RECOVERY_DONE) {
netdev_err(bp->dev, "Handling parity error recovery. "
"Try again later\n");
return 1;
}
if (netif_running(bp->dev)) {
bnx2x_nic_unload(bp, UNLOAD_NORMAL);
rc = bnx2x_nic_load(bp, LOAD_NORMAL);
}
DP(NETIF_MSG_LINK, "set_dcbx_params done (%d)\n", rc);
if (rc)
return 1;
return 0;
}
static u8 bnx2x_dcbnl_get_cap(struct net_device *netdev, int capid, u8 *cap)
{
struct bnx2x *bp = netdev_priv(netdev);
u8 rval = 0;
if (bp->dcb_state) {
switch (capid) {
case DCB_CAP_ATTR_PG:
*cap = true;
break;
case DCB_CAP_ATTR_PFC:
*cap = true;
break;
case DCB_CAP_ATTR_UP2TC:
*cap = false;
break;
case DCB_CAP_ATTR_PG_TCS:
*cap = 0x80; /* 8 priorities for PGs */
break;
case DCB_CAP_ATTR_PFC_TCS:
*cap = 0x80; /* 8 priorities for PFC */
break;
case DCB_CAP_ATTR_GSP:
*cap = true;
break;
case DCB_CAP_ATTR_BCN:
*cap = false;
break;
case DCB_CAP_ATTR_DCBX:
*cap = BNX2X_DCBX_CAPS;
break;
default:
rval = -EINVAL;
break;
}
} else
rval = -EINVAL;
DP(NETIF_MSG_LINK, "capid %d:%x\n", capid, *cap);
return rval;
}
static u8 bnx2x_dcbnl_get_numtcs(struct net_device *netdev, int tcid, u8 *num)
{
struct bnx2x *bp = netdev_priv(netdev);
u8 rval = 0;
DP(NETIF_MSG_LINK, "tcid %d\n", tcid);
if (bp->dcb_state) {
switch (tcid) {
case DCB_NUMTCS_ATTR_PG:
*num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 :
DCBX_COS_MAX_NUM_E2;
break;
case DCB_NUMTCS_ATTR_PFC:
*num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 :
DCBX_COS_MAX_NUM_E2;
break;
default:
rval = -EINVAL;
break;
}
} else
rval = -EINVAL;
return rval;
}
static u8 bnx2x_dcbnl_set_numtcs(struct net_device *netdev, int tcid, u8 num)
{
struct bnx2x *bp = netdev_priv(netdev);
DP(NETIF_MSG_LINK, "num tcs = %d; Not supported\n", num);
return -EINVAL;
}
static u8 bnx2x_dcbnl_get_pfc_state(struct net_device *netdev)
{
struct bnx2x *bp = netdev_priv(netdev);
DP(NETIF_MSG_LINK, "state = %d\n", bp->dcbx_local_feat.pfc.enabled);
if (!bp->dcb_state)
return 0;
return bp->dcbx_local_feat.pfc.enabled;
}
static void bnx2x_dcbnl_set_pfc_state(struct net_device *netdev, u8 state)
{
struct bnx2x *bp = netdev_priv(netdev);
DP(NETIF_MSG_LINK, "state = %s\n", state ? "on" : "off");
if (!bnx2x_dcbnl_set_valid(bp))
return;
bp->dcbx_config_params.admin_pfc_tx_enable =
bp->dcbx_config_params.admin_pfc_enable = (state ? 1 : 0);
}
static void bnx2x_admin_app_set_ent(
struct bnx2x_admin_priority_app_table *app_ent,
u8 idtype, u16 idval, u8 up)
{
app_ent->valid = 1;
switch (idtype) {
case DCB_APP_IDTYPE_ETHTYPE:
app_ent->traffic_type = TRAFFIC_TYPE_ETH;
break;
case DCB_APP_IDTYPE_PORTNUM:
app_ent->traffic_type = TRAFFIC_TYPE_PORT;
break;
default:
break; /* never gets here */
}
app_ent->app_id = idval;
app_ent->priority = up;
}
static bool bnx2x_admin_app_is_equal(
struct bnx2x_admin_priority_app_table *app_ent,
u8 idtype, u16 idval)
{
if (!app_ent->valid)
return false;
switch (idtype) {
case DCB_APP_IDTYPE_ETHTYPE:
if (app_ent->traffic_type != TRAFFIC_TYPE_ETH)
return false;
break;
case DCB_APP_IDTYPE_PORTNUM:
if (app_ent->traffic_type != TRAFFIC_TYPE_PORT)
return false;
break;
default:
return false;
}
if (app_ent->app_id != idval)
return false;
return true;
}
static int bnx2x_set_admin_app_up(struct bnx2x *bp, u8 idtype, u16 idval, u8 up)
{
int i, ff;
/* iterate over the app entries looking for idtype and idval */
for (i = 0, ff = -1; i < 4; i++) {
struct bnx2x_admin_priority_app_table *app_ent =
&bp->dcbx_config_params.admin_priority_app_table[i];
if (bnx2x_admin_app_is_equal(app_ent, idtype, idval))
break;
if (ff < 0 && !app_ent->valid)
ff = i;
}
if (i < 4)
/* if found overwrite up */
bp->dcbx_config_params.
admin_priority_app_table[i].priority = up;
else if (ff >= 0)
/* not found use first-free */
bnx2x_admin_app_set_ent(
&bp->dcbx_config_params.admin_priority_app_table[ff],
idtype, idval, up);
else
/* app table is full */
return -EBUSY;
/* up configured, if not 0 make sure feature is enabled */
if (up)
bp->dcbx_config_params.admin_application_priority_tx_enable = 1;
return 0;
}
static u8 bnx2x_dcbnl_set_app_up(struct net_device *netdev, u8 idtype,
u16 idval, u8 up)
{
struct bnx2x *bp = netdev_priv(netdev);
DP(NETIF_MSG_LINK, "app_type %d, app_id %x, prio bitmap %d\n",
idtype, idval, up);
if (!bnx2x_dcbnl_set_valid(bp))
return -EINVAL;
/* verify idtype */
switch (idtype) {
case DCB_APP_IDTYPE_ETHTYPE:
case DCB_APP_IDTYPE_PORTNUM:
break;
default:
return -EINVAL;
}
return bnx2x_set_admin_app_up(bp, idtype, idval, up);
}
static u8 bnx2x_dcbnl_get_dcbx(struct net_device *netdev)
{
struct bnx2x *bp = netdev_priv(netdev);
u8 state;
state = DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE;
if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF)
state |= DCB_CAP_DCBX_STATIC;
return state;
}
static u8 bnx2x_dcbnl_set_dcbx(struct net_device *netdev, u8 state)
{
struct bnx2x *bp = netdev_priv(netdev);
DP(NETIF_MSG_LINK, "state = %02x\n", state);
/* set dcbx mode */
if ((state & BNX2X_DCBX_CAPS) != state) {
BNX2X_ERR("Requested DCBX mode %x is beyond advertised "
"capabilities\n", state);
return 1;
}
if (bp->dcb_state != BNX2X_DCB_STATE_ON) {
BNX2X_ERR("DCB turned off, DCBX configuration is invalid\n");
return 1;
}
if (state & DCB_CAP_DCBX_STATIC)
bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_OFF;
else
bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_ON;
bp->dcbx_mode_uset = true;
return 0;
}
static u8 bnx2x_dcbnl_get_featcfg(struct net_device *netdev, int featid,
u8 *flags)
{
struct bnx2x *bp = netdev_priv(netdev);
u8 rval = 0;
DP(NETIF_MSG_LINK, "featid %d\n", featid);
if (bp->dcb_state) {
*flags = 0;
switch (featid) {
case DCB_FEATCFG_ATTR_PG:
if (bp->dcbx_local_feat.ets.enabled)
*flags |= DCB_FEATCFG_ENABLE;
if (bp->dcbx_error & DCBX_LOCAL_ETS_ERROR)
*flags |= DCB_FEATCFG_ERROR;
break;
case DCB_FEATCFG_ATTR_PFC:
if (bp->dcbx_local_feat.pfc.enabled)
*flags |= DCB_FEATCFG_ENABLE;
if (bp->dcbx_error & (DCBX_LOCAL_PFC_ERROR |
DCBX_LOCAL_PFC_MISMATCH))
*flags |= DCB_FEATCFG_ERROR;
break;
case DCB_FEATCFG_ATTR_APP:
if (bp->dcbx_local_feat.app.enabled)
*flags |= DCB_FEATCFG_ENABLE;
if (bp->dcbx_error & (DCBX_LOCAL_APP_ERROR |
DCBX_LOCAL_APP_MISMATCH))
*flags |= DCB_FEATCFG_ERROR;
break;
default:
rval = -EINVAL;
break;
}
} else
rval = -EINVAL;
return rval;
}
static u8 bnx2x_dcbnl_set_featcfg(struct net_device *netdev, int featid,
u8 flags)
{
struct bnx2x *bp = netdev_priv(netdev);
u8 rval = 0;
DP(NETIF_MSG_LINK, "featid = %d flags = %02x\n", featid, flags);
/* ignore the 'advertise' flag */
if (bnx2x_dcbnl_set_valid(bp)) {
switch (featid) {
case DCB_FEATCFG_ATTR_PG:
bp->dcbx_config_params.admin_ets_enable =
flags & DCB_FEATCFG_ENABLE ? 1 : 0;
bp->dcbx_config_params.admin_ets_willing =
flags & DCB_FEATCFG_WILLING ? 1 : 0;
break;
case DCB_FEATCFG_ATTR_PFC:
bp->dcbx_config_params.admin_pfc_enable =
flags & DCB_FEATCFG_ENABLE ? 1 : 0;
bp->dcbx_config_params.admin_pfc_willing =
flags & DCB_FEATCFG_WILLING ? 1 : 0;
break;
case DCB_FEATCFG_ATTR_APP:
/* ignore enable, always enabled */
bp->dcbx_config_params.admin_app_priority_willing =
flags & DCB_FEATCFG_WILLING ? 1 : 0;
break;
default:
rval = -EINVAL;
break;
}
} else
rval = -EINVAL;
return rval;
}
static int bnx2x_peer_appinfo(struct net_device *netdev,
struct dcb_peer_app_info *info, u16* app_count)
{
int i;
struct bnx2x *bp = netdev_priv(netdev);
DP(NETIF_MSG_LINK, "APP-INFO\n");
info->willing = (bp->dcbx_remote_flags & DCBX_APP_REM_WILLING) ?: 0;
info->error = (bp->dcbx_remote_flags & DCBX_APP_RX_ERROR) ?: 0;
*app_count = 0;
for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++)
if (bp->dcbx_remote_feat.app.app_pri_tbl[i].appBitfield &
DCBX_APP_ENTRY_VALID)
(*app_count)++;
return 0;
}
static int bnx2x_peer_apptable(struct net_device *netdev,
struct dcb_app *table)
{
int i, j;
struct bnx2x *bp = netdev_priv(netdev);
DP(NETIF_MSG_LINK, "APP-TABLE\n");
for (i = 0, j = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
struct dcbx_app_priority_entry *ent =
&bp->dcbx_remote_feat.app.app_pri_tbl[i];
if (ent->appBitfield & DCBX_APP_ENTRY_VALID) {
table[j].selector = bnx2x_dcbx_dcbnl_app_idtype(ent);
table[j].priority = bnx2x_dcbx_dcbnl_app_up(ent);
table[j++].protocol = ent->app_id;
}
}
return 0;
}
static int bnx2x_cee_peer_getpg(struct net_device *netdev, struct cee_pg *pg)
{
int i;
struct bnx2x *bp = netdev_priv(netdev);
pg->willing = (bp->dcbx_remote_flags & DCBX_ETS_REM_WILLING) ?: 0;
for (i = 0; i < CEE_DCBX_MAX_PGS; i++) {
pg->pg_bw[i] =
DCBX_PG_BW_GET(bp->dcbx_remote_feat.ets.pg_bw_tbl, i);
pg->prio_pg[i] =
DCBX_PRI_PG_GET(bp->dcbx_remote_feat.ets.pri_pg_tbl, i);
}
return 0;
}
static int bnx2x_cee_peer_getpfc(struct net_device *netdev,
struct cee_pfc *pfc)
{
struct bnx2x *bp = netdev_priv(netdev);
pfc->tcs_supported = bp->dcbx_remote_feat.pfc.pfc_caps;
pfc->pfc_en = bp->dcbx_remote_feat.pfc.pri_en_bitmap;
return 0;
}
const struct dcbnl_rtnl_ops bnx2x_dcbnl_ops = {
.getstate = bnx2x_dcbnl_get_state,
.setstate = bnx2x_dcbnl_set_state,
.getpermhwaddr = bnx2x_dcbnl_get_perm_hw_addr,
.setpgtccfgtx = bnx2x_dcbnl_set_pg_tccfg_tx,
.setpgbwgcfgtx = bnx2x_dcbnl_set_pg_bwgcfg_tx,
.setpgtccfgrx = bnx2x_dcbnl_set_pg_tccfg_rx,
.setpgbwgcfgrx = bnx2x_dcbnl_set_pg_bwgcfg_rx,
.getpgtccfgtx = bnx2x_dcbnl_get_pg_tccfg_tx,
.getpgbwgcfgtx = bnx2x_dcbnl_get_pg_bwgcfg_tx,
.getpgtccfgrx = bnx2x_dcbnl_get_pg_tccfg_rx,
.getpgbwgcfgrx = bnx2x_dcbnl_get_pg_bwgcfg_rx,
.setpfccfg = bnx2x_dcbnl_set_pfc_cfg,
.getpfccfg = bnx2x_dcbnl_get_pfc_cfg,
.setall = bnx2x_dcbnl_set_all,
.getcap = bnx2x_dcbnl_get_cap,
.getnumtcs = bnx2x_dcbnl_get_numtcs,
.setnumtcs = bnx2x_dcbnl_set_numtcs,
.getpfcstate = bnx2x_dcbnl_get_pfc_state,
.setpfcstate = bnx2x_dcbnl_set_pfc_state,
.setapp = bnx2x_dcbnl_set_app_up,
.getdcbx = bnx2x_dcbnl_get_dcbx,
.setdcbx = bnx2x_dcbnl_set_dcbx,
.getfeatcfg = bnx2x_dcbnl_get_featcfg,
.setfeatcfg = bnx2x_dcbnl_set_featcfg,
.peer_getappinfo = bnx2x_peer_appinfo,
.peer_getapptable = bnx2x_peer_apptable,
.cee_peer_getpg = bnx2x_cee_peer_getpg,
.cee_peer_getpfc = bnx2x_cee_peer_getpfc,
};
#endif /* BCM_DCBNL */