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linux/drivers/net/bnx2x/bnx2x_dcb.c
Dmitry Kravkov fab0dc89f0 bnx2x, cnic: Disable iSCSI if DCBX negotiation is successful 
With current bnx2x firmware 6.2.9, iSCSI is not supported in DCB
network, so we need to disable it.  Add cnic command to disconnect
iSCSI connections and prevent future connections when DCBX negotiation
succeeds.

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-31 17:04:22 -07:00

2168 lines
63 KiB
C
Raw Blame History

/* bnx2x_dcb.c: Broadcom Everest network driver.
*
* Copyright 2009-2010 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
*
*/
#include <linux/netdevice.h>
#include <linux/types.h>
#include <linux/errno.h>
#ifdef BCM_DCBNL
#include <linux/dcbnl.h>
#endif
#include "bnx2x.h"
#include "bnx2x_cmn.h"
#include "bnx2x_dcb.h"
/* forward declarations of dcbx related functions */
static void 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 void 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_pfc_fw_struct_e2(struct bnx2x *bp);
static void bnx2x_pfc_set(struct bnx2x *bp)
{
struct bnx2x_nig_brb_pfc_port_params pfc_params = {0};
u32 pri_bit, val = 0;
u8 pri;
/* Tx COS configuration */
if (bp->dcbx_port_params.ets.cos_params[0].pauseable)
pfc_params.rx_cos0_priority_mask =
bp->dcbx_port_params.ets.cos_params[0].pri_bitmask;
if (bp->dcbx_port_params.ets.cos_params[1].pauseable)
pfc_params.rx_cos1_priority_mask =
bp->dcbx_port_params.ets.cos_params[1].pri_bitmask;
/**
* Rx COS configuration
* Changing PFC RX configuration .
* In RX COS0 will always be configured to lossy and COS1 to lossless
*/
for (pri = 0 ; pri < MAX_PFC_PRIORITIES ; pri++) {
pri_bit = 1 << pri;
if (pri_bit & DCBX_PFC_PRI_PAUSE_MASK(bp))
val |= 1 << (pri * 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 (app->enabled && !GET_FLAGS(error, DCBX_LOCAL_APP_ERROR)) {
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 < E2_NUM_OF_COS ; i++) {
cos_params[i].pauseable = false;
cos_params[i].strict = BNX2X_DCBX_COS_NOT_STRICT;
cos_params[i].bw_tbl = DCBX_INVALID_COS_BW;
cos_params[i].pri_bitmask = DCBX_PFC_PRI_GET_NON_PAUSE(bp, 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) &&
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;
}
}
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);
}
#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, i;
u32 *buff, 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 {
buff = base_mib_addr;
for (i = 0; i < mib_size; i += 4, buff++)
*buff = REG_RD(bp, offset + i);
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 (CHIP_IS_E2(bp)) {
if (BP_PORT(bp)) {
BNX2X_ERR("4 port mode is not supported");
return;
}
if (bp->dcbx_port_params.pfc.enabled)
/* 1. Fills up common PFC structures if required.*/
/* 2. Configure NIG, MAC and BRB via the elink:
* elink must first check if BMAC is not in reset
* and only then configures the BMAC
* Or, configure EMAC.
*/
bnx2x_pfc_set(bp);
else
bnx2x_pfc_clear(bp);
}
}
static void bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp)
{
DP(NETIF_MSG_LINK, "sending STOP TRAFFIC\n");
bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_STOP_TRAFFIC,
0 /* connectionless */,
0 /* dataHi is zero */,
0 /* dataLo is zero */,
1 /* common */);
}
static void bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp)
{
bnx2x_pfc_fw_struct_e2(bp);
DP(NETIF_MSG_LINK, "sending START TRAFFIC\n");
bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_START_TRAFFIC,
0, /* connectionless */
U64_HI(bnx2x_sp_mapping(bp, pfc_config)),
U64_LO(bnx2x_sp_mapping(bp, pfc_config)),
1 /* commmon */);
}
static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp)
{
struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets);
u8 status = 0;
bnx2x_ets_disabled(&bp->link_params);
if (!ets->enabled)
return;
if ((ets->num_of_cos == 0) || (ets->num_of_cos > E2_NUM_OF_COS)) {
BNX2X_ERR("illegal num of cos= %x", ets->num_of_cos);
return;
}
/* valid COS entries */
if (ets->num_of_cos == 1) /* no ETS */
return;
/* sanity */
if (((BNX2X_DCBX_COS_NOT_STRICT == ets->cos_params[0].strict) &&
(DCBX_INVALID_COS_BW == ets->cos_params[0].bw_tbl)) ||
((BNX2X_DCBX_COS_NOT_STRICT == 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_COS_HIGH_STRICT)
status = bnx2x_ets_strict(&bp->link_params, 0);
else if (ets->cos_params[1].strict
== BNX2X_DCBX_COS_HIGH_STRICT)
status = bnx2x_ets_strict(&bp->link_params, 1);
if (status)
BNX2X_ERR("update_ets_params failed\n");
}
}
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;
}
static inline
void bnx2x_dcbx_invalidate_local_apps(struct bnx2x *bp)
{
int i;
for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++)
bp->dcbx_local_feat.app.app_pri_tbl[i].appBitfield &=
~DCBX_APP_ENTRY_VALID;
}
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
void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state)
{
switch (state) {
case BNX2X_DCBX_STATE_NEG_RECEIVED:
#ifdef BCM_CNIC
if (bp->state != BNX2X_STATE_OPENING_WAIT4_LOAD) {
struct cnic_ops *c_ops;
struct cnic_eth_dev *cp = &bp->cnic_eth_dev;
bp->flags |= NO_ISCSI_OOO_FLAG | NO_ISCSI_FLAG;
cp->drv_state |= CNIC_DRV_STATE_NO_ISCSI_OOO;
cp->drv_state |= CNIC_DRV_STATE_NO_ISCSI;
rcu_read_lock();
c_ops = rcu_dereference(bp->cnic_ops);
if (c_ops) {
bnx2x_cnic_notify(bp, CNIC_CTL_STOP_ISCSI_CMD);
rcu_read_unlock();
return;
}
rcu_read_unlock();
}
/* fall through if no CNIC initialized */
case BNX2X_DCBX_STATE_ISCSI_STOPPED:
#endif
{
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);
#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);
if (bp->state != BNX2X_STATE_OPENING_WAIT4_LOAD) {
#ifdef BCM_DCBNL
/**
* Add new app tlvs to dcbnl
*/
bnx2x_dcbnl_update_applist(bp, false);
#endif
bnx2x_dcbx_stop_hw_tx(bp);
return;
}
/* fall through */
#ifdef BCM_DCBNL
/**
* Invalidate the local app tlvs if they are not added
* to the dcbnl app list to avoid deleting them from
* the list later on
*/
bnx2x_dcbx_invalidate_local_apps(bp);
#endif
}
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);
if (bp->state != BNX2X_STATE_OPENING_WAIT4_LOAD) {
bnx2x_dcbx_resume_hw_tx(bp);
return;
}
/* fall through */
case BNX2X_DCBX_STATE_TX_RELEASED:
DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_TX_RELEASED\n");
if (bp->state != BNX2X_STATE_OPENING_WAIT4_LOAD)
bnx2x_fw_command(bp, DRV_MSG_CODE_DCBX_PMF_DRV_OK, 0);
return;
default:
BNX2X_ERR("Unknown DCBX_STATE\n");
}
}
#define LLDP_STATS_OFFSET(bp) (BP_PORT(bp)*\
sizeof(struct lldp_dcbx_stat))
/* calculate struct offset in array according to chip information */
#define LLDP_PARAMS_OFFSET(bp) (BP_PORT(bp)*sizeof(struct lldp_params))
#define LLDP_ADMIN_MIB_OFFSET(bp) (PORT_MAX*sizeof(struct lldp_params) + \
BP_PORT(bp)*sizeof(struct lldp_admin_mib))
static void bnx2x_dcbx_lldp_updated_params(struct bnx2x *bp,
u32 dcbx_lldp_params_offset)
{
struct lldp_params lldp_params = {0};
u32 i = 0, *buff = NULL;
u32 offset = dcbx_lldp_params_offset + LLDP_PARAMS_OFFSET(bp);
DP(NETIF_MSG_LINK, "lldp_offset 0x%x\n", offset);
if ((bp->lldp_config_params.overwrite_settings ==
BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE)) {
/* Read the data first */
buff = (u32 *)&lldp_params;
for (i = 0; i < sizeof(struct lldp_params); i += 4, buff++)
*buff = REG_RD(bp, (offset + i));
lldp_params.msg_tx_hold =
(u8)bp->lldp_config_params.msg_tx_hold;
lldp_params.msg_fast_tx_interval =
(u8)bp->lldp_config_params.msg_fast_tx;
lldp_params.tx_crd_max =
(u8)bp->lldp_config_params.tx_credit_max;
lldp_params.msg_tx_interval =
(u8)bp->lldp_config_params.msg_tx_interval;
lldp_params.tx_fast =
(u8)bp->lldp_config_params.tx_fast;
/* Write the data.*/
buff = (u32 *)&lldp_params;
for (i = 0; i < sizeof(struct lldp_params); i += 4, buff++)
REG_WR(bp, (offset + i) , *buff);
} else if (BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE ==
bp->lldp_config_params.overwrite_settings)
bp->lldp_config_params.overwrite_settings =
BNX2X_DCBX_OVERWRITE_SETTINGS_INVALID;
}
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 *buff;
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));
buff = (u32 *)&admin_mib;
/* Read the data first */
for (i = 0; i < sizeof(struct lldp_admin_mib); i += 4, buff++)
*buff = REG_RD(bp, (offset + i));
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 ((BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE ==
dp->overwrite_settings)) {
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;
} else if (BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE ==
dp->overwrite_settings)
dp->overwrite_settings = BNX2X_DCBX_OVERWRITE_SETTINGS_INVALID;
/* Write the data. */
buff = (u32 *)&admin_mib;
for (i = 0; i < sizeof(struct lldp_admin_mib); i += 4, buff++)
REG_WR(bp, (offset + i), *buff);
}
void bnx2x_dcbx_set_state(struct bnx2x *bp, bool dcb_on, u32 dcbx_enabled)
{
if (CHIP_IS_E2(bp) && !CHIP_MODE_IS_4_PORT(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);
if (SHMEM_LLDP_DCBX_PARAMS_NONE != dcbx_lldp_params_offset) {
bnx2x_dcbx_lldp_updated_params(bp,
dcbx_lldp_params_offset);
bnx2x_dcbx_admin_mib_updated_params(bp,
dcbx_lldp_params_offset);
/* set default configuration BC has */
bnx2x_dcbx_set_params(bp,
BNX2X_DCBX_STATE_NEG_RECEIVED);
bnx2x_fw_command(bp,
DRV_MSG_CODE_DCBX_ADMIN_PMF_MSG, 0);
}
}
}
void bnx2x_dcb_init_intmem_pfc(struct bnx2x *bp)
{
struct priority_cos pricos[MAX_PFC_TRAFFIC_TYPES];
u32 i = 0, addr;
memset(pricos, 0, sizeof(pricos));
/* Default initialization */
for (i = 0; i < MAX_PFC_TRAFFIC_TYPES; i++)
pricos[i].priority = LLFC_TRAFFIC_TYPE_TO_PRIORITY_UNMAPPED;
/* Store per port struct to internal memory */
addr = BAR_XSTRORM_INTMEM +
XSTORM_CMNG_PER_PORT_VARS_OFFSET(BP_PORT(bp)) +
offsetof(struct cmng_struct_per_port,
traffic_type_to_priority_cos);
__storm_memset_struct(bp, addr, sizeof(pricos), (u32 *)pricos);
/* LLFC disabled.*/
REG_WR8(bp , BAR_XSTRORM_INTMEM +
XSTORM_CMNG_PER_PORT_VARS_OFFSET(BP_PORT(bp)) +
offsetof(struct cmng_struct_per_port, llfc_mode),
LLFC_MODE_NONE);
/* DCBX disabled.*/
REG_WR8(bp , BAR_XSTRORM_INTMEM +
XSTORM_CMNG_PER_PORT_VARS_OFFSET(BP_PORT(bp)) +
offsetof(struct cmng_struct_per_port, dcb_enabled),
DCB_DISABLED);
}
static void
bnx2x_dcbx_print_cos_params(struct bnx2x *bp,
struct flow_control_configuration *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);
}
}
/*******************************************************************************
* Description: single priority group
*
* Return:
******************************************************************************/
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;
}
/*******************************************************************************
* Description: updating the cos bw
*
* Return:
******************************************************************************/
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;
}
/*******************************************************************************
* Description: single priority group
*
* Return:
******************************************************************************/
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_COS_HIGH_STRICT;
}
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 bxn2x_dcbx_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_COS_HIGH_STRICT;
cos_data->data[1].strict =
BNX2X_DCBX_COS_LOW_STRICT;
} else {
cos_data->data[0].strict =
BNX2X_DCBX_COS_LOW_STRICT;
cos_data->data[1].strict =
BNX2X_DCBX_COS_HIGH_STRICT;
}
/* 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_COS_LOW_STRICT;
cos_data->data[1].strict = BNX2X_DCBX_COS_HIGH_STRICT;
}
}
}
static void bnx2x_dcbx_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[E2_NUM_OF_COS] = {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 < E2_NUM_OF_COS; 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_COS_HIGH_STRICT;
}
}
/*******************************************************************************
* Description: Still
*
* Return:
******************************************************************************/
static void bnx2x_dcbx_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_COS_HIGH_STRICT;
}
}
}
}
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;
}
/* default settings */
cos_data.num_of_cos = 2;
for (i = 0; i < E2_NUM_OF_COS ; i++) {
cos_data.data[i].pri_join_mask = pri_join_mask;
cos_data.data[i].pausable = false;
cos_data.data[i].strict = BNX2X_DCBX_COS_NOT_STRICT;
cos_data.data[i].cos_bw = DCBX_INVALID_COS_BW;
}
switch (help_data->num_of_pg) {
case 1:
bxn2x_dcbx_single_pg_to_cos_params(
bp,
help_data,
&cos_data,
pri_join_mask,
num_of_dif_pri);
break;
case 2:
bnx2x_dcbx_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_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);
}
for (i = 0; i < cos_data.num_of_cos ; i++) {
struct bnx2x_dcbx_cos_params *params =
&bp->dcbx_port_params.ets.cos_params[i];
params->pauseable = cos_data.data[i].pausable;
params->strict = cos_data.data[i].strict;
params->bw_tbl = cos_data.data[i].cos_bw;
if (params->pauseable) {
params->pri_bitmask =
DCBX_PFC_PRI_GET_PAUSE(bp,
cos_data.data[i].pri_join_mask);
DP(NETIF_MSG_LINK, "COS %d PAUSABLE prijoinmask 0x%x\n",
i, cos_data.data[i].pri_join_mask);
} else {
params->pri_bitmask =
DCBX_PFC_PRI_GET_NON_PAUSE(bp,
cos_data.data[i].pri_join_mask);
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]);
}
}
/*******************************************************************************
* Description: Fill pfc_config struct that will be sent in DCBX start ramrod
*
* Return:
******************************************************************************/
static void bnx2x_pfc_fw_struct_e2(struct bnx2x *bp)
{
struct flow_control_configuration *pfc_fw_cfg = NULL;
u16 pri_bit = 0;
u8 cos = 0, pri = 0;
struct priority_cos *tt2cos;
u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority;
pfc_fw_cfg = (struct flow_control_configuration *)
bnx2x_sp(bp, pfc_config);
memset(pfc_fw_cfg, 0, sizeof(struct flow_control_configuration));
/*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 = DCB_ENABLED;
/* Default initialization */
for (pri = 0; pri < MAX_PFC_TRAFFIC_TYPES ; pri++) {
tt2cos[pri].priority = LLFC_TRAFFIC_TYPE_TO_PRIORITY_UNMAPPED;
tt2cos[pri].cos = 0;
}
/* 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 generally 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;
}
bnx2x_dcbx_print_cos_params(bp, pfc_fw_cfg);
}
/* 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;
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 = E2_NUM_OF_COS;
break;
case DCB_NUMTCS_ATTR_PFC:
*num = E2_NUM_OF_COS;
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;
}
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,
};
#endif /* BCM_DCBNL */
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