| /* 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); |
| int rc = 0; |
| |
| 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 (%d)\n", rc); |
| if (rc) |
| return 1; |
| |
| return 0; |
| } |
| |
| static u8 bnx2x_dcbnl_get_cap(struct net_device *netdev, int capid, u8 *cap) |
| { |
| struct bnx2x *bp = netdev_priv(netdev); |
| u8 rval = 0; |
| |
| if (bp->dcb_state) { |
| switch (capid) { |
| case DCB_CAP_ATTR_PG: |
| *cap = true; |
| break; |
| case DCB_CAP_ATTR_PFC: |
| *cap = true; |
| break; |
| case DCB_CAP_ATTR_UP2TC: |
| *cap = false; |
| break; |
| case DCB_CAP_ATTR_PG_TCS: |
| *cap = 0x80; /* 8 priorities for PGs */ |
| break; |
| case DCB_CAP_ATTR_PFC_TCS: |
| *cap = 0x80; /* 8 priorities for PFC */ |
| break; |
| case DCB_CAP_ATTR_GSP: |
| *cap = true; |
| break; |
| case DCB_CAP_ATTR_BCN: |
| *cap = false; |
| break; |
| case DCB_CAP_ATTR_DCBX: |
| *cap = BNX2X_DCBX_CAPS; |
| break; |
| default: |
| 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 */ |