--- /dev/null
+/* 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>
+
+#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;
+}
+
+void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state)
+{
+ switch (state) {
+ case BNX2X_DCBX_STATE_NEG_RECEIVED:
+ {
+ DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_NEG_RECEIVED\n");
+
+ /* 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) {
+ bnx2x_dcbx_stop_hw_tx(bp);
+ return;
+ }
+ /* fall through */
+ }
+ 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 (BNX2X_DCBX_CONFIG_INV_VALUE != dp->admin_dcbx_enable) {
+ if (dp->admin_dcbx_enable)
+ 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);
+}
+
+/* default */
+void bnx2x_dcbx_init_params(struct bnx2x *bp)
+{
+ bp->dcbx_config_params.admin_dcbx_version = 0x0; /* 0 - CEE; 1 - IEEE */
+ bp->dcbx_config_params.dcb_enable = 1;
+ bp->dcbx_config_params.admin_dcbx_enable = 1;
+ 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;
+ /* validate:
+ * chip of good for dcbx version,
+ * dcb is wanted
+ * the function is pmf
+ * shmem2 contains DCBX support fields
+ */
+ DP(NETIF_MSG_LINK, "dcb_enable %d bp->port.pmf %d\n",
+ bp->dcbx_config_params.dcb_enable, bp->port.pmf);
+
+ if (CHIP_IS_E2(bp) && !CHIP_MODE_IS_4_PORT(bp) &&
+ bp->dcbx_config_params.dcb_enable &&
+ 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 = 0;
+ 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);
+}
projects / linux-platform-drivers-x86.git / commitdiff