--- /dev/null
+/* bnx2x_dcb.c: Broadcom Everest network driver.
+ *
+ * Copyright 2009-2013 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: Ariel Elior <ariel.elior@qlogic.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 void bnx2x_pfc_set_pfc(struct bnx2x *bp);
+static void bnx2x_dcbx_update_ets_params(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 lossless and COS1 to lossy
+ */
+ 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 = DCBX_PFC_PRI_PAUSE_MASK(bp);
+ /* RX COS1 */
+ pfc_params.llfc_high_priority_classes = 0;
+
+ 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;
+ 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(BNX2X_MSG_DCB, "dcbx_features.pfc.pri_en_bitmap %x\n",
+ features->pfc.pri_en_bitmap);
+ DP(BNX2X_MSG_DCB, "dcbx_features.pfc.pfc_caps %x\n",
+ features->pfc.pfc_caps);
+ DP(BNX2X_MSG_DCB, "dcbx_features.pfc.enabled %x\n",
+ features->pfc.enabled);
+
+ DP(BNX2X_MSG_DCB, "dcbx_features.app.default_pri %x\n",
+ features->app.default_pri);
+ DP(BNX2X_MSG_DCB, "dcbx_features.app.tc_supported %x\n",
+ features->app.tc_supported);
+ DP(BNX2X_MSG_DCB, "dcbx_features.app.enabled %x\n",
+ features->app.enabled);
+ for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) {
+ DP(BNX2X_MSG_DCB,
+ "dcbx_features.app.app_pri_tbl[%x].app_id %x\n",
+ i, features->app.app_pri_tbl[i].app_id);
+ DP(BNX2X_MSG_DCB,
+ "dcbx_features.app.app_pri_tbl[%x].pri_bitmap %x\n",
+ i, features->app.app_pri_tbl[i].pri_bitmap);
+ DP(BNX2X_MSG_DCB,
+ "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(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_ERROR\n");
+
+ if (GET_FLAGS(error, DCBX_LOCAL_APP_MISMATCH))
+ DP(BNX2X_MSG_DCB, "DCBX_LOCAL_APP_MISMATCH\n");
+
+ if (GET_FLAGS(error, DCBX_REMOTE_APP_TLV_NOT_FOUND))
+ DP(BNX2X_MSG_DCB, "DCBX_REMOTE_APP_TLV_NOT_FOUND\n");
+ if (app->enabled &&
+ !GET_FLAGS(error, DCBX_LOCAL_APP_ERROR | DCBX_LOCAL_APP_MISMATCH |
+ DCBX_REMOTE_APP_TLV_NOT_FOUND)) {
+
+ 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(BNX2X_MSG_DCB, "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(BNX2X_MSG_DCB, "DCBX_LOCAL_ETS_ERROR\n");
+
+ if (GET_FLAGS(error, DCBX_REMOTE_ETS_TLV_NOT_FOUND))
+ DP(BNX2X_MSG_DCB, "DCBX_REMOTE_ETS_TLV_NOT_FOUND\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 && ets->enabled &&
+ !GET_FLAGS(error,
+ DCBX_LOCAL_ETS_ERROR | DCBX_REMOTE_ETS_TLV_NOT_FOUND)) {
+ DP(BNX2X_MSG_DCB, "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(BNX2X_MSG_DCB, "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(BNX2X_MSG_DCB, "DCBX_LOCAL_PFC_ERROR\n");
+
+ if (GET_FLAGS(error, DCBX_REMOTE_PFC_TLV_NOT_FOUND))
+ DP(BNX2X_MSG_DCB, "DCBX_REMOTE_PFC_TLV_NOT_FOUND\n");
+ if (bp->dcbx_port_params.app.enabled && pfc->enabled &&
+ !GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR | DCBX_LOCAL_PFC_MISMATCH |
+ DCBX_REMOTE_PFC_TLV_NOT_FOUND)) {
+ bp->dcbx_port_params.pfc.enabled = true;
+ bp->dcbx_port_params.pfc.priority_non_pauseable_mask =
+ ~(pfc->pri_en_bitmap);
+ } else {
+ DP(BNX2X_MSG_DCB, "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(BNX2X_MSG_DCB,
+ "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)
+{
+ int mfw_configured = SHMEM2_HAS(bp, drv_flags) &&
+ GET_FLAGS(SHMEM2_RD(bp, drv_flags),
+ 1 << DRV_FLAGS_DCB_MFW_CONFIGURED);
+
+ if (bp->dcbx_port_params.pfc.enabled &&
+ (!(bp->dcbx_error & DCBX_REMOTE_MIB_ERROR) || mfw_configured))
+ /*
+ * 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);
+}
+
+int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp)
+{
+ struct bnx2x_func_state_params func_params = {NULL};
+ int rc;
+
+ func_params.f_obj = &bp->func_obj;
+ func_params.cmd = BNX2X_F_CMD_TX_STOP;
+
+ __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags);
+ __set_bit(RAMROD_RETRY, &func_params.ramrod_flags);
+
+ DP(BNX2X_MSG_DCB, "STOP TRAFFIC\n");
+
+ rc = bnx2x_func_state_change(bp, &func_params);
+ if (rc) {
+ BNX2X_ERR("Unable to hold traffic for HW configuration\n");
+ bnx2x_panic();
+ }
+
+ return rc;
+}
+
+int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp)
+{
+ struct bnx2x_func_state_params func_params = {NULL};
+ struct bnx2x_func_tx_start_params *tx_params =
+ &func_params.params.tx_start;
+ int rc;
+
+ func_params.f_obj = &bp->func_obj;
+ func_params.cmd = BNX2X_F_CMD_TX_START;
+
+ __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags);
+ __set_bit(RAMROD_RETRY, &func_params.ramrod_flags);
+
+ bnx2x_dcbx_fw_struct(bp, tx_params);
+
+ DP(BNX2X_MSG_DCB, "START TRAFFIC\n");
+
+ rc = bnx2x_func_state_change(bp, &func_params);
+ if (rc) {
+ BNX2X_ERR("Unable to resume traffic after HW configuration\n");
+ bnx2x_panic();
+ }
+
+ return rc;
+}
+
+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.
+ */
+static 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)
+{
+ int mfw_configured = SHMEM2_HAS(bp, drv_flags) &&
+ GET_FLAGS(SHMEM2_RD(bp, drv_flags),
+ 1 << DRV_FLAGS_DCB_MFW_CONFIGURED);
+
+ bnx2x_ets_disabled(&bp->link_params, &bp->link_vars);
+
+ if (!bp->dcbx_port_params.ets.enabled ||
+ ((bp->dcbx_error & DCBX_REMOTE_MIB_ERROR) && !mfw_configured))
+ 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(BNX2X_MSG_DCB, "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("Failed 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(BNX2X_MSG_DCB, "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("Failed 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_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(BNX2X_MSG_DCB,
+ "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 attention on a work queue which must be
+ * flushed at some rtnl-locked contexts (e.g. if down)
+ */
+ bnx2x_schedule_sp_rtnl(bp, BNX2X_SP_RTNL_SETUP_TC, 0);
+}
+
+void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state)
+{
+ switch (state) {
+ case BNX2X_DCBX_STATE_NEG_RECEIVED:
+ {
+ DP(BNX2X_MSG_DCB, "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 remote 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,
+ 1 << DRV_FLAGS_DCB_CONFIGURED,
+ 1);
+#ifdef BCM_DCBNL
+ /*
+ * Add new app tlvs to dcbnl
+ */
+ bnx2x_dcbnl_update_applist(bp, false);
+#endif
+ /*
+ * reconfigure the netdevice with the results of the new
+ * dcbx negotiation.
+ */
+ bnx2x_dcbx_update_tc_mapping(bp);
+
+ /*
+ * allow other functions to update their netdevices
+ * accordingly
+ */
+ if (IS_MF(bp))
+ bnx2x_link_sync_notify(bp);
+
+ bnx2x_schedule_sp_rtnl(bp, BNX2X_SP_RTNL_TX_STOP, 0);
+ return;
+ }
+ case BNX2X_DCBX_STATE_TX_PAUSED:
+ DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_TX_PAUSED\n");
+ bnx2x_pfc_set_pfc(bp);
+
+ bnx2x_dcbx_update_ets_params(bp);
+
+ /* ets may affect cmng configuration: reinit it in hw */
+ bnx2x_set_local_cmng(bp);
+ return;
+ case BNX2X_DCBX_STATE_TX_RELEASED:
+ DP(BNX2X_MSG_DCB, "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(BNX2X_MSG_DCB, "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(BNX2X_MSG_DCB, "pri_pg_tbl[%d] = %02x\n",
+ i, DCBX_PRI_PG_GET(af->ets.pri_pg_tbl, i));
+ }
+
+ /*For IEEE admin_recommendation_bw_percentage
+ *For IEEE admin_recommendation_ets_pg */
+ af->pfc.pri_en_bitmap = (u8)dp->admin_pfc_bitmap;
+ for (i = 0; i < DCBX_CONFIG_MAX_APP_PROTOCOL; 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)) {
+ bp->dcb_state = dcb_on;
+ bp->dcbx_enabled = dcbx_enabled;
+ } else {
+ bp->dcb_state = false;
+ bp->dcbx_enabled = BNX2X_DCBX_ENABLED_INVALID;
+ }
+ DP(BNX2X_MSG_DCB, "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] = 100;
+ bp->dcbx_config_params.admin_configuration_bw_precentage[1] = 0;
+ bp->dcbx_config_params.admin_configuration_bw_precentage[2] = 0;
+ 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] = 0;
+ 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] = 0;
+ 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] = 100;
+ bp->dcbx_config_params.admin_recommendation_bw_precentage[1] = 0;
+ bp->dcbx_config_params.admin_recommendation_bw_precentage[2] = 0;
+ bp->dcbx_config_params.admin_recommendation_bw_precentage[3] = 0;
+ bp->dcbx_config_params.admin_recommendation_bw_precentage[4] = 0;
+ bp->dcbx_config_params.admin_recommendation_bw_precentage[5] = 0;
+ bp->dcbx_config_params.admin_recommendation_bw_precentage[6] = 0;
+ bp->dcbx_config_params.admin_recommendation_bw_precentage[7] = 0;
+ 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 = 0x0;
+ bp->dcbx_config_params.admin_priority_app_table[0].valid = 0;
+ bp->dcbx_config_params.admin_priority_app_table[1].valid = 0;
+ 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_default_priority = 0;
+}
+
+void bnx2x_dcbx_init(struct bnx2x *bp, bool update_shmem)
+{
+ u32 dcbx_lldp_params_offset = SHMEM_LLDP_DCBX_PARAMS_NONE;
+
+ /* only PMF can send ADMIN msg to MFW in old MFW versions */
+ if ((!bp->port.pmf) && (!(bp->flags & BC_SUPPORTS_DCBX_MSG_NON_PMF)))
+ return;
+
+ if (bp->dcbx_enabled <= 0)
+ return;
+
+ /* validate:
+ * chip of good for dcbx version,
+ * dcb is wanted
+ * shmem2 contains DCBX support fields
+ */
+ DP(BNX2X_MSG_DCB, "dcb_state %d bp->port.pmf %d\n",
+ bp->dcb_state, bp->port.pmf);
+
+ if (bp->dcb_state == BNX2X_DCB_STATE_ON &&
+ SHMEM2_HAS(bp, dcbx_lldp_params_offset)) {
+ dcbx_lldp_params_offset =
+ SHMEM2_RD(bp, dcbx_lldp_params_offset);
+
+ DP(BNX2X_MSG_DCB, "dcbx_lldp_params_offset 0x%x\n",
+ dcbx_lldp_params_offset);
+
+ bnx2x_update_drv_flags(bp, 1 << DRV_FLAGS_DCB_CONFIGURED, 0);
+
+ if (SHMEM_LLDP_DCBX_PARAMS_NONE != dcbx_lldp_params_offset) {
+ /* need HW lock to avoid scenario of two drivers
+ * writing in parallel to shmem
+ */
+ bnx2x_acquire_hw_lock(bp,
+ HW_LOCK_RESOURCE_DCBX_ADMIN_MIB);
+ if (update_shmem)
+ 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);
+ /* release HW lock only after MFW acks that it finished
+ * reading values from shmem
+ */
+ bnx2x_release_hw_lock(bp,
+ HW_LOCK_RESOURCE_DCBX_ADMIN_MIB);
+ }
+ }
+}
+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(BNX2X_MSG_DCB,
+ "pfc_fw_cfg->dcb_version %x\n", pfc_fw_cfg->dcb_version);
+ DP(BNX2X_MSG_DCB,
+ "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(BNX2X_MSG_DCB,
+ "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(BNX2X_MSG_DCB,
+ "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(BNX2X_MSG_DCB,
+ "pdev->params.dcbx_port_params.ets.cos_params[%d].strict %x\n",
+ cos, bp->dcbx_port_params.ets.cos_params[cos].strict);
+
+ DP(BNX2X_MSG_DCB,
+ "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(BNX2X_MSG_DCB,
+ "pfc_fw_cfg->traffic_type_to_priority_cos[%d].priority %x\n",
+ pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].priority);
+
+ DP(BNX2X_MSG_DCB,
+ "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; /*shortcut*/
+
+ /* 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(BNX2X_MSG_DCB,
+ "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 rules
+ */
+ 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 higher priorities 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 second 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
+ * entry 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 rules
+ */
+ 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) {
+ BNX2X_ERR("Didn't succeed to spread strict priorities\n");
+ 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(BNX2X_MSG_DCB, "COS %d PAUSABLE prijoinmask 0x%x\n",
+ i, cos_data.data[i].pri_join_mask);
+ else
+ DP(BNX2X_MSG_DCB,
+ "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(BNX2X_MSG_DCB, "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;
+ int mfw_configured = SHMEM2_HAS(bp, drv_flags) &&
+ GET_FLAGS(SHMEM2_RD(bp, drv_flags),
+ 1 << DRV_FLAGS_DCB_MFW_CONFIGURED);
+
+ 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) && !mfw_configured)
+ 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 synchronize DCBX result from prev PMF
+ * read it from shmem and update bp and netdev accordingly
+ */
+ if (SHMEM2_HAS(bp, drv_flags) &&
+ GET_FLAGS(SHMEM2_RD(bp, drv_flags), 1 << 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);
+#ifdef BCM_DCBNL
+ /*
+ * Add new app tlvs to dcbnl
+ */
+ bnx2x_dcbnl_update_applist(bp, false);
+ /*
+ * Send a notification for the new negotiated parameters
+ */
+ dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0);
+#endif
+ /*
+ * reconfigure the netdevice with the results of the new
+ * dcbx negotiation.
+ */
+ bnx2x_dcbx_update_tc_mapping(bp);
+ }
+}
+
+/* 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(BNX2X_MSG_DCB, "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(BNX2X_MSG_DCB, "state = %s\n", state ? "on" : "off");
+
+ /* Fail to set state to "enabled" if dcbx is disabled in nvram */
+ if (state && ((bp->dcbx_enabled == BNX2X_DCBX_ENABLED_OFF) ||
+ (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_INVALID))) {
+ DP(BNX2X_MSG_DCB, "Can not set dcbx to enabled while it is disabled in nvm\n");
+ return 1;
+ }
+
+ 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(BNX2X_MSG_DCB, "GET-PERM-ADDR\n");
+
+ /* first the HW mac address */
+ memcpy(perm_addr, netdev->dev_addr, netdev->addr_len);
+
+ if (CNIC_LOADED(bp))
+ /* second SAN address */
+ memcpy(perm_addr+netdev->addr_len, bp->fip_mac,
+ netdev->addr_len);
+}
+
+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(BNX2X_MSG_DCB, "prio[%d] = %d\n", prio, pgid);
+ if (!bnx2x_dcbnl_set_valid(bp) || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES)
+ return;
+
+ /**
+ * bw_pct ignored - band-width percentage devision between user
+ * priorities within the same group is not
+ * standard and hence not supported
+ *
+ * prio_type ignored - priority levels within the same group are not
+ * standard and hence are not supported. According
+ * to the standard pgid 15 is dedicated to strict
+ * priority 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(BNX2X_MSG_DCB, "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(BNX2X_MSG_DCB, "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(BNX2X_MSG_DCB, "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(BNX2X_MSG_DCB, "prio = %d\n", prio);
+
+ /**
+ * bw_pct ignored - band-width percentage devision between user
+ * priorities within the same group is not
+ * standard and hence not supported
+ *
+ * prio_type ignored - priority levels within the same group are not
+ * standard and hence are not supported. According
+ * to the standard pgid 15 is dedicated to strict
+ * priority 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(BNX2X_MSG_DCB, "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(BNX2X_MSG_DCB, "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(BNX2X_MSG_DCB, "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(BNX2X_MSG_DCB, "prio[%d] = %d\n", prio, setting);
+
+ if (!bnx2x_dcbnl_set_valid(bp) || prio >= MAX_PFC_PRIORITIES)
+ return;
+
+ if (setting) {
+ bp->dcbx_config_params.admin_pfc_bitmap |= (1 << prio);
+ bp->dcbx_config_params.admin_pfc_tx_enable = 1;
+ } else {
+ bp->dcbx_config_params.admin_pfc_bitmap &= ~(1 << prio);
+ }
+}
+
+static void bnx2x_dcbnl_get_pfc_cfg(struct net_device *netdev, int prio,
+ u8 *setting)
+{
+ struct bnx2x *bp = netdev_priv(netdev);
+ DP(BNX2X_MSG_DCB, "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);
+
+ DP(BNX2X_MSG_DCB, "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_update_drv_flags(bp,
+ 1 << DRV_FLAGS_DCB_MFW_CONFIGURED,
+ 1);
+ bnx2x_dcbx_init(bp, true);
+ }
+ DP(BNX2X_MSG_DCB, "set_dcbx_params done\n");
+
+ 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:
+ BNX2X_ERR("Non valid capability ID\n");
+ rval = 1;
+ break;
+ }
+ } else {
+ DP(BNX2X_MSG_DCB, "DCB disabled\n");
+ rval = 1;
+ }
+
+ DP(BNX2X_MSG_DCB, "capid %d:%x\n", capid, *cap);
+ return rval;
+}
+
+static int bnx2x_dcbnl_get_numtcs(struct net_device *netdev, int tcid, u8 *num)
+{
+ struct bnx2x *bp = netdev_priv(netdev);
+ u8 rval = 0;
+
+ DP(BNX2X_MSG_DCB, "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:
+ BNX2X_ERR("Non valid TC-ID\n");
+ rval = 1;
+ break;
+ }
+ } else {
+ DP(BNX2X_MSG_DCB, "DCB disabled\n");
+ rval = 1;
+ }
+
+ return rval;
+}
+
+static int bnx2x_dcbnl_set_numtcs(struct net_device *netdev, int tcid, u8 num)
+{
+ struct bnx2x *bp = netdev_priv(netdev);
+ DP(BNX2X_MSG_DCB, "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(BNX2X_MSG_DCB, "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(BNX2X_MSG_DCB, "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 < DCBX_CONFIG_MAX_APP_PROTOCOL; 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 < DCBX_CONFIG_MAX_APP_PROTOCOL)
+ /* 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 */
+ BNX2X_ERR("Application table is too large\n");
+ 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 int bnx2x_dcbnl_set_app_up(struct net_device *netdev, u8 idtype,
+ u16 idval, u8 up)
+{
+ struct bnx2x *bp = netdev_priv(netdev);
+
+ DP(BNX2X_MSG_DCB, "app_type %d, app_id %x, prio bitmap %d\n",
+ idtype, idval, up);
+
+ if (!bnx2x_dcbnl_set_valid(bp)) {
+ DP(BNX2X_MSG_DCB, "dcbnl call not valid\n");
+ return -EINVAL;
+ }
+
+ /* verify idtype */
+ switch (idtype) {
+ case DCB_APP_IDTYPE_ETHTYPE:
+ case DCB_APP_IDTYPE_PORTNUM:
+ break;
+ default:
+ DP(BNX2X_MSG_DCB, "Wrong ID type\n");
+ 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(BNX2X_MSG_DCB, "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(BNX2X_MSG_DCB, "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 |
+ DCBX_REMOTE_MIB_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 |
+ DCBX_REMOTE_MIB_ERROR))
+ *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 |
+ DCBX_REMOTE_MIB_ERROR))
+ *flags |= DCB_FEATCFG_ERROR;
+ break;
+ default:
+ BNX2X_ERR("Non valid feature-ID\n");
+ rval = 1;
+ break;
+ }
+ } else {
+ DP(BNX2X_MSG_DCB, "DCB disabled\n");
+ rval = 1;
+ }
+
+ 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(BNX2X_MSG_DCB, "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:
+ BNX2X_ERR("Non valid feature-ID\n");
+ rval = 1;
+ break;
+ }
+ } else {
+ DP(BNX2X_MSG_DCB, "dcbnl call not valid\n");
+ rval = 1;
+ }
+
+ 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(BNX2X_MSG_DCB, "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(BNX2X_MSG_DCB, "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 */
Code Review / kvmfornfv.git / blobdiff