| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Vladislav Zolotarov | 6111 | 50.31% | 2 | 4.88% |
| Shmulik Ravid | 3023 | 24.89% | 4 | 9.76% |
| Dmitry Kravkov | 2334 | 19.22% | 11 | 26.83% |
| Barak Witkowsky | 205 | 1.69% | 4 | 9.76% |
| Yuval Mintz | 186 | 1.53% | 11 | 26.83% |
| Merav Sicron | 173 | 1.42% | 2 | 4.88% |
| Ariel Elior | 93 | 0.77% | 1 | 2.44% |
| Kumar Amit Mehta | 8 | 0.07% | 1 | 2.44% |
| Joe Perches | 8 | 0.07% | 2 | 4.88% |
| John Fastabend | 2 | 0.02% | 1 | 2.44% |
| Masanari Iida | 2 | 0.02% | 1 | 2.44% |
| Anish Bhatt | 1 | 0.01% | 1 | 2.44% |
| Total | 12146 | 41 |
/* bnx2x_dcb.c: QLogic Everest network driver. * * Copyright 2009-2013 Broadcom Corporation * Copyright 2014 QLogic Corporation * All rights reserved * * Unless you and QLogic 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 QLogic software provided under a * license other than the GPL, without QLogic'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; u8 iscsi_pri_found = 0, fcoe_pri_found = 0; 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; /* Use 0 as the default application priority for all. */ for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++) ttp[index] = 0; for (index = 0 ; index < DCBX_MAX_APP_PROTOCOL; index++) { struct dcbx_app_priority_entry *entry = app->app_pri_tbl; enum traffic_type type = MAX_TRAFFIC_TYPE; if (GET_FLAGS(entry[index].appBitfield, DCBX_APP_SF_DEFAULT) && GET_FLAGS(entry[index].appBitfield, DCBX_APP_SF_ETH_TYPE)) { type = LLFC_TRAFFIC_TYPE_NW; } else if (GET_FLAGS(entry[index].appBitfield, DCBX_APP_SF_PORT) && TCP_PORT_ISCSI == entry[index].app_id) { type = LLFC_TRAFFIC_TYPE_ISCSI; iscsi_pri_found = 1; } else if (GET_FLAGS(entry[index].appBitfield, DCBX_APP_SF_ETH_TYPE) && ETH_TYPE_FCOE == entry[index].app_id) { type = LLFC_TRAFFIC_TYPE_FCOE; fcoe_pri_found = 1; } if (type == MAX_TRAFFIC_TYPE) continue; bnx2x_dcbx_get_ap_priority(bp, entry[index].pri_bitmap, type); } /* If we have received a non-zero default application * priority, then use that for applications which are * not configured with any priority. */ if (ttp[LLFC_TRAFFIC_TYPE_NW] != 0) { if (!iscsi_pri_found) { ttp[LLFC_TRAFFIC_TYPE_ISCSI] = ttp[LLFC_TRAFFIC_TYPE_NW]; DP(BNX2X_MSG_DCB, "ISCSI is using default priority.\n"); } if (!fcoe_pri_found) { ttp[LLFC_TRAFFIC_TYPE_FCOE] = ttp[LLFC_TRAFFIC_TYPE_NW]; DP(BNX2X_MSG_DCB, "FCoE is using default priority.\n"); } } } 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; pfc_fw_cfg->dcb_outer_pri[pri] = ttp[pri]; } /* we never want the FW to add a 0 vlan tag */ pfc_fw_cfg->dont_add_pri_0_en = 1; bnx2x_dcbx_print_cos_params(bp, pfc_fw_cfg); } void bnx2x_dcbx_pmf_update(struct bnx2x *bp) { /* if we need to synchronize DCBX result from prev PMF * read it from shmem and update bp and netdev accordingly */ if (SHMEM2_HAS(bp, drv_flags) && GET_FLAGS(SHMEM2_RD(bp, drv_flags), 1 << DRV_FLAGS_DCB_CONFIGURED)) { /* Read neg results if dcbx is in the FW */ if (bnx2x_dcbx_read_shmem_neg_results(bp)) return; bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat, bp->dcbx_error); bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat, bp->dcbx_error); #ifdef BCM_DCBNL /* * Add new app tlvs to dcbnl */ bnx2x_dcbnl_update_applist(bp, false); /* * Send a notification for the new negotiated parameters */ dcbnl_cee_notify(bp->dev, RTM_GETDCB, DCB_CMD_CEE_GET, 0, 0); #endif /* * reconfigure the netdevice with the results of the new * dcbx negotiation. */ bnx2x_dcbx_update_tc_mapping(bp); } } /* DCB netlink */ #ifdef BCM_DCBNL #define BNX2X_DCBX_CAPS (DCB_CAP_DCBX_LLD_MANAGED | \ DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_STATIC) static inline bool bnx2x_dcbnl_set_valid(struct bnx2x *bp) { /* validate dcbnl call that may change HW state: * DCB is on and DCBX mode was SUCCESSFULLY set by the user. */ return bp->dcb_state && bp->dcbx_mode_uset; } static u8 bnx2x_dcbnl_get_state(struct net_device *netdev) { struct bnx2x *bp = netdev_priv(netdev); DP(BNX2X_MSG_DCB, "state = %d\n", bp->dcb_state); return bp->dcb_state; } static u8 bnx2x_dcbnl_set_state(struct net_device *netdev, u8 state) { struct bnx2x *bp = netdev_priv(netdev); DP(BNX2X_MSG_DCB, "state = %s\n", state ? "on" : "off"); /* Fail to set state to "enabled" if dcbx is disabled in nvram */ if (state && ((bp->dcbx_enabled == BNX2X_DCBX_ENABLED_OFF) || (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_INVALID))) { DP(BNX2X_MSG_DCB, "Can not set dcbx to enabled while it is disabled in nvm\n"); return 1; } bnx2x_dcbx_set_state(bp, (state ? true : false), bp->dcbx_enabled); return 0; } static void bnx2x_dcbnl_get_perm_hw_addr(struct net_device *netdev, u8 *perm_addr) { struct bnx2x *bp = netdev_priv(netdev); DP(BNX2X_MSG_DCB, "GET-PERM-ADDR\n"); /* first the HW mac address */ memcpy(perm_addr, netdev->dev_addr, netdev->addr_len); if (CNIC_LOADED(bp)) /* second SAN address */ memcpy(perm_addr+netdev->addr_len, bp->fip_mac, netdev->addr_len); } static void bnx2x_dcbnl_set_pg_tccfg_tx(struct net_device *netdev, int prio, u8 prio_type, u8 pgid, u8 bw_pct, u8 up_map) { struct bnx2x *bp = netdev_priv(netdev); DP(BNX2X_MSG_DCB, "prio[%d] = %d\n", prio, pgid); if (!bnx2x_dcbnl_set_valid(bp) || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES) return; /** * bw_pct ignored - band-width percentage devision between user * priorities within the same group is not * standard and hence not supported * * prio_type ignored - priority levels within the same group are not * standard and hence are not supported. According * to the standard pgid 15 is dedicated to strict * priority traffic (on the port level). * * up_map ignored */ bp->dcbx_config_params.admin_configuration_ets_pg[prio] = pgid; bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1; } static void bnx2x_dcbnl_set_pg_bwgcfg_tx(struct net_device *netdev, int pgid, u8 bw_pct) { struct bnx2x *bp = netdev_priv(netdev); DP(BNX2X_MSG_DCB, "pgid[%d] = %d\n", pgid, bw_pct); if (!bnx2x_dcbnl_set_valid(bp) || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES) return; bp->dcbx_config_params.admin_configuration_bw_precentage[pgid] = bw_pct; bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1; } static void bnx2x_dcbnl_set_pg_tccfg_rx(struct net_device *netdev, int prio, u8 prio_type, u8 pgid, u8 bw_pct, u8 up_map) { struct bnx2x *bp = netdev_priv(netdev); DP(BNX2X_MSG_DCB, "Nothing to set; No RX support\n"); } static void bnx2x_dcbnl_set_pg_bwgcfg_rx(struct net_device *netdev, int pgid, u8 bw_pct) { struct bnx2x *bp = netdev_priv(netdev); DP(BNX2X_MSG_DCB, "Nothing to set; No RX support\n"); } static void bnx2x_dcbnl_get_pg_tccfg_tx(struct net_device *netdev, int prio, u8 *prio_type, u8 *pgid, u8 *bw_pct, u8 *up_map) { struct bnx2x *bp = netdev_priv(netdev); DP(BNX2X_MSG_DCB, "prio = %d\n", prio); /** * bw_pct ignored - band-width percentage devision between user * priorities within the same group is not * standard and hence not supported * * prio_type ignored - priority levels within the same group are not * standard and hence are not supported. According * to the standard pgid 15 is dedicated to strict * priority traffic (on the port level). * * up_map ignored */ *up_map = *bw_pct = *prio_type = *pgid = 0; if (!bp->dcb_state || prio >= DCBX_MAX_NUM_PRI_PG_ENTRIES) return; *pgid = DCBX_PRI_PG_GET(bp->dcbx_local_feat.ets.pri_pg_tbl, prio); } static void bnx2x_dcbnl_get_pg_bwgcfg_tx(struct net_device *netdev, int pgid, u8 *bw_pct) { struct bnx2x *bp = netdev_priv(netdev); DP(BNX2X_MSG_DCB, "pgid = %d\n", pgid); *bw_pct = 0; if (!bp->dcb_state || pgid >= DCBX_MAX_NUM_PG_BW_ENTRIES) return; *bw_pct = DCBX_PG_BW_GET(bp->dcbx_local_feat.ets.pg_bw_tbl, pgid); } static void bnx2x_dcbnl_get_pg_tccfg_rx(struct net_device *netdev, int prio, u8 *prio_type, u8 *pgid, u8 *bw_pct, u8 *up_map) { struct bnx2x *bp = netdev_priv(netdev); DP(BNX2X_MSG_DCB, "Nothing to get; No RX support\n"); *prio_type = *pgid = *bw_pct = *up_map = 0; } static void bnx2x_dcbnl_get_pg_bwgcfg_rx(struct net_device *netdev, int pgid, u8 *bw_pct) { struct bnx2x *bp = netdev_priv(netdev); DP(BNX2X_MSG_DCB, "Nothing to get; No RX support\n"); *bw_pct = 0; } static void bnx2x_dcbnl_set_pfc_cfg(struct net_device *netdev, int prio, u8 setting) { struct bnx2x *bp = netdev_priv(netdev); DP(BNX2X_MSG_DCB, "prio[%d] = %d\n", prio, setting); if (!bnx2x_dcbnl_set_valid(bp) || prio >= MAX_PFC_PRIORITIES) return; if (setting) { bp->dcbx_config_params.admin_pfc_bitmap |= (1 << prio); bp->dcbx_config_params.admin_pfc_tx_enable = 1; } else { bp->dcbx_config_params.admin_pfc_bitmap &= ~(1 << prio); } } static void bnx2x_dcbnl_get_pfc_cfg(struct net_device *netdev, int prio, u8 *setting) { struct bnx2x *bp = netdev_priv(netdev); DP(BNX2X_MSG_DCB, "prio = %d\n", prio); *setting = 0; if (!bp->dcb_state || prio >= MAX_PFC_PRIORITIES) return; *setting = (bp->dcbx_local_feat.pfc.pri_en_bitmap >> prio) & 0x1; } static u8 bnx2x_dcbnl_set_all(struct net_device *netdev) { struct bnx2x *bp = netdev_priv(netdev); DP(BNX2X_MSG_DCB, "SET-ALL\n"); if (!bnx2x_dcbnl_set_valid(bp)) return 1; if (bp->recovery_state != BNX2X_RECOVERY_DONE) { netdev_err(bp->dev, "Handling parity error recovery. Try again later\n"); return 1; } if (netif_running(bp->dev)) { bnx2x_update_drv_flags(bp, 1 << DRV_FLAGS_DCB_MFW_CONFIGURED, 1); bnx2x_dcbx_init(bp, true); } DP(BNX2X_MSG_DCB, "set_dcbx_params done\n"); return 0; } static u8 bnx2x_dcbnl_get_cap(struct net_device *netdev, int capid, u8 *cap) { struct bnx2x *bp = netdev_priv(netdev); u8 rval = 0; if (bp->dcb_state) { switch (capid) { case DCB_CAP_ATTR_PG: *cap = true; break; case DCB_CAP_ATTR_PFC: *cap = true; break; case DCB_CAP_ATTR_UP2TC: *cap = false; break; case DCB_CAP_ATTR_PG_TCS: *cap = 0x80; /* 8 priorities for PGs */ break; case DCB_CAP_ATTR_PFC_TCS: *cap = 0x80; /* 8 priorities for PFC */ break; case DCB_CAP_ATTR_GSP: *cap = true; break; case DCB_CAP_ATTR_BCN: *cap = false; break; case DCB_CAP_ATTR_DCBX: *cap = BNX2X_DCBX_CAPS; break; default: BNX2X_ERR("Non valid capability ID\n"); rval = 1; break; } } else { DP(BNX2X_MSG_DCB, "DCB disabled\n"); rval = 1; } DP(BNX2X_MSG_DCB, "capid %d:%x\n", capid, *cap); return rval; } static int bnx2x_dcbnl_get_numtcs(struct net_device *netdev, int tcid, u8 *num) { struct bnx2x *bp = netdev_priv(netdev); u8 rval = 0; DP(BNX2X_MSG_DCB, "tcid %d\n", tcid); if (bp->dcb_state) { switch (tcid) { case DCB_NUMTCS_ATTR_PG: *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 : DCBX_COS_MAX_NUM_E2; break; case DCB_NUMTCS_ATTR_PFC: *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 : DCBX_COS_MAX_NUM_E2; break; default: BNX2X_ERR("Non valid TC-ID\n"); rval = 1; break; } } else { DP(BNX2X_MSG_DCB, "DCB disabled\n"); rval = 1; } return rval; } static int bnx2x_dcbnl_set_numtcs(struct net_device *netdev, int tcid, u8 num) { struct bnx2x *bp = netdev_priv(netdev); DP(BNX2X_MSG_DCB, "num tcs = %d; Not supported\n", num); return -EINVAL; } static u8 bnx2x_dcbnl_get_pfc_state(struct net_device *netdev) { struct bnx2x *bp = netdev_priv(netdev); DP(BNX2X_MSG_DCB, "state = %d\n", bp->dcbx_local_feat.pfc.enabled); if (!bp->dcb_state) return 0; return bp->dcbx_local_feat.pfc.enabled; } static void bnx2x_dcbnl_set_pfc_state(struct net_device *netdev, u8 state) { struct bnx2x *bp = netdev_priv(netdev); DP(BNX2X_MSG_DCB, "state = %s\n", state ? "on" : "off"); if (!bnx2x_dcbnl_set_valid(bp)) return; bp->dcbx_config_params.admin_pfc_tx_enable = bp->dcbx_config_params.admin_pfc_enable = (state ? 1 : 0); } static void bnx2x_admin_app_set_ent( struct bnx2x_admin_priority_app_table *app_ent, u8 idtype, u16 idval, u8 up) { app_ent->valid = 1; switch (idtype) { case DCB_APP_IDTYPE_ETHTYPE: app_ent->traffic_type = TRAFFIC_TYPE_ETH; break; case DCB_APP_IDTYPE_PORTNUM: app_ent->traffic_type = TRAFFIC_TYPE_PORT; break; default: break; /* never gets here */ } app_ent->app_id = idval; app_ent->priority = up; } static bool bnx2x_admin_app_is_equal( struct bnx2x_admin_priority_app_table *app_ent, u8 idtype, u16 idval) { if (!app_ent->valid) return false; switch (idtype) { case DCB_APP_IDTYPE_ETHTYPE: if (app_ent->traffic_type != TRAFFIC_TYPE_ETH) return false; break; case DCB_APP_IDTYPE_PORTNUM: if (app_ent->traffic_type != TRAFFIC_TYPE_PORT) return false; break; default: return false; } if (app_ent->app_id != idval) return false; return true; } static int bnx2x_set_admin_app_up(struct bnx2x *bp, u8 idtype, u16 idval, u8 up) { int i, ff; /* iterate over the app entries looking for idtype and idval */ for (i = 0, ff = -1; i < DCBX_CONFIG_MAX_APP_PROTOCOL; i++) { struct bnx2x_admin_priority_app_table *app_ent = &bp->dcbx_config_params.admin_priority_app_table[i]; if (bnx2x_admin_app_is_equal(app_ent, idtype, idval)) break; if (ff < 0 && !app_ent->valid) ff = i; } if (i < DCBX_CONFIG_MAX_APP_PROTOCOL) /* if found overwrite up */ bp->dcbx_config_params. admin_priority_app_table[i].priority = up; else if (ff >= 0) /* not found use first-free */ bnx2x_admin_app_set_ent( &bp->dcbx_config_params.admin_priority_app_table[ff], idtype, idval, up); else { /* app table is full */ BNX2X_ERR("Application table is too large\n"); return -EBUSY; } /* up configured, if not 0 make sure feature is enabled */ if (up) bp->dcbx_config_params.admin_application_priority_tx_enable = 1; return 0; } static int bnx2x_dcbnl_set_app_up(struct net_device *netdev, u8 idtype, u16 idval, u8 up) { struct bnx2x *bp = netdev_priv(netdev); DP(BNX2X_MSG_DCB, "app_type %d, app_id %x, prio bitmap %d\n", idtype, idval, up); if (!bnx2x_dcbnl_set_valid(bp)) { DP(BNX2X_MSG_DCB, "dcbnl call not valid\n"); return -EINVAL; } /* verify idtype */ switch (idtype) { case DCB_APP_IDTYPE_ETHTYPE: case DCB_APP_IDTYPE_PORTNUM: break; default: DP(BNX2X_MSG_DCB, "Wrong ID type\n"); return -EINVAL; } return bnx2x_set_admin_app_up(bp, idtype, idval, up); } static u8 bnx2x_dcbnl_get_dcbx(struct net_device *netdev) { struct bnx2x *bp = netdev_priv(netdev); u8 state; state = DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_CEE; if (bp->dcbx_enabled == BNX2X_DCBX_ENABLED_ON_NEG_OFF) state |= DCB_CAP_DCBX_STATIC; return state; } static u8 bnx2x_dcbnl_set_dcbx(struct net_device *netdev, u8 state) { struct bnx2x *bp = netdev_priv(netdev); DP(BNX2X_MSG_DCB, "state = %02x\n", state); /* set dcbx mode */ if ((state & BNX2X_DCBX_CAPS) != state) { BNX2X_ERR("Requested DCBX mode %x is beyond advertised capabilities\n", state); return 1; } if (bp->dcb_state != BNX2X_DCB_STATE_ON) { BNX2X_ERR("DCB turned off, DCBX configuration is invalid\n"); return 1; } if (state & DCB_CAP_DCBX_STATIC) bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_OFF; else bp->dcbx_enabled = BNX2X_DCBX_ENABLED_ON_NEG_ON; bp->dcbx_mode_uset = true; return 0; } static u8 bnx2x_dcbnl_get_featcfg(struct net_device *netdev, int featid, u8 *flags) { struct bnx2x *bp = netdev_priv(netdev); u8 rval = 0; DP(BNX2X_MSG_DCB, "featid %d\n", featid); if (bp->dcb_state) { *flags = 0; switch (featid) { case DCB_FEATCFG_ATTR_PG: if (bp->dcbx_local_feat.ets.enabled) *flags |= DCB_FEATCFG_ENABLE; if (bp->dcbx_error & (DCBX_LOCAL_ETS_ERROR | DCBX_REMOTE_MIB_ERROR)) *flags |= DCB_FEATCFG_ERROR; break; case DCB_FEATCFG_ATTR_PFC: if (bp->dcbx_local_feat.pfc.enabled) *flags |= DCB_FEATCFG_ENABLE; if (bp->dcbx_error & (DCBX_LOCAL_PFC_ERROR | DCBX_LOCAL_PFC_MISMATCH | DCBX_REMOTE_MIB_ERROR)) *flags |= DCB_FEATCFG_ERROR; break; case DCB_FEATCFG_ATTR_APP: if (bp->dcbx_local_feat.app.enabled) *flags |= DCB_FEATCFG_ENABLE; if (bp->dcbx_error & (DCBX_LOCAL_APP_ERROR | DCBX_LOCAL_APP_MISMATCH | DCBX_REMOTE_MIB_ERROR)) *flags |= DCB_FEATCFG_ERROR; break; default: BNX2X_ERR("Non valid feature-ID\n"); rval = 1; break; } } else { DP(BNX2X_MSG_DCB, "DCB disabled\n"); rval = 1; } return rval; } static u8 bnx2x_dcbnl_set_featcfg(struct net_device *netdev, int featid, u8 flags) { struct bnx2x *bp = netdev_priv(netdev); u8 rval = 0; DP(BNX2X_MSG_DCB, "featid = %d flags = %02x\n", featid, flags); /* ignore the 'advertise' flag */ if (bnx2x_dcbnl_set_valid(bp)) { switch (featid) { case DCB_FEATCFG_ATTR_PG: bp->dcbx_config_params.admin_ets_enable = flags & DCB_FEATCFG_ENABLE ? 1 : 0; bp->dcbx_config_params.admin_ets_willing = flags & DCB_FEATCFG_WILLING ? 1 : 0; break; case DCB_FEATCFG_ATTR_PFC: bp->dcbx_config_params.admin_pfc_enable = flags & DCB_FEATCFG_ENABLE ? 1 : 0; bp->dcbx_config_params.admin_pfc_willing = flags & DCB_FEATCFG_WILLING ? 1 : 0; break; case DCB_FEATCFG_ATTR_APP: /* ignore enable, always enabled */ bp->dcbx_config_params.admin_app_priority_willing = flags & DCB_FEATCFG_WILLING ? 1 : 0; break; default: BNX2X_ERR("Non valid feature-ID\n"); rval = 1; break; } } else { DP(BNX2X_MSG_DCB, "dcbnl call not valid\n"); rval = 1; } return rval; } static int bnx2x_peer_appinfo(struct net_device *netdev, struct dcb_peer_app_info *info, u16* app_count) { int i; struct bnx2x *bp = netdev_priv(netdev); DP(BNX2X_MSG_DCB, "APP-INFO\n"); info->willing = (bp->dcbx_remote_flags & DCBX_APP_REM_WILLING) ?: 0; info->error = (bp->dcbx_remote_flags & DCBX_APP_RX_ERROR) ?: 0; *app_count = 0; for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) if (bp->dcbx_remote_feat.app.app_pri_tbl[i].appBitfield & DCBX_APP_ENTRY_VALID) (*app_count)++; return 0; } static int bnx2x_peer_apptable(struct net_device *netdev, struct dcb_app *table) { int i, j; struct bnx2x *bp = netdev_priv(netdev); DP(BNX2X_MSG_DCB, "APP-TABLE\n"); for (i = 0, j = 0; i < DCBX_MAX_APP_PROTOCOL; i++) { struct dcbx_app_priority_entry *ent = &bp->dcbx_remote_feat.app.app_pri_tbl[i]; if (ent->appBitfield & DCBX_APP_ENTRY_VALID) { table[j].selector = bnx2x_dcbx_dcbnl_app_idtype(ent); table[j].priority = bnx2x_dcbx_dcbnl_app_up(ent); table[j++].protocol = ent->app_id; } } return 0; } static int bnx2x_cee_peer_getpg(struct net_device *netdev, struct cee_pg *pg) { int i; struct bnx2x *bp = netdev_priv(netdev); pg->willing = (bp->dcbx_remote_flags & DCBX_ETS_REM_WILLING) ?: 0; for (i = 0; i < CEE_DCBX_MAX_PGS; i++) { pg->pg_bw[i] = DCBX_PG_BW_GET(bp->dcbx_remote_feat.ets.pg_bw_tbl, i); pg->prio_pg[i] = DCBX_PRI_PG_GET(bp->dcbx_remote_feat.ets.pri_pg_tbl, i); } return 0; } static int bnx2x_cee_peer_getpfc(struct net_device *netdev, struct cee_pfc *pfc) { struct bnx2x *bp = netdev_priv(netdev); pfc->tcs_supported = bp->dcbx_remote_feat.pfc.pfc_caps; pfc->pfc_en = bp->dcbx_remote_feat.pfc.pri_en_bitmap; return 0; } const struct dcbnl_rtnl_ops bnx2x_dcbnl_ops = { .getstate = bnx2x_dcbnl_get_state, .setstate = bnx2x_dcbnl_set_state, .getpermhwaddr = bnx2x_dcbnl_get_perm_hw_addr, .setpgtccfgtx = bnx2x_dcbnl_set_pg_tccfg_tx, .setpgbwgcfgtx = bnx2x_dcbnl_set_pg_bwgcfg_tx, .setpgtccfgrx = bnx2x_dcbnl_set_pg_tccfg_rx, .setpgbwgcfgrx = bnx2x_dcbnl_set_pg_bwgcfg_rx, .getpgtccfgtx = bnx2x_dcbnl_get_pg_tccfg_tx, .getpgbwgcfgtx = bnx2x_dcbnl_get_pg_bwgcfg_tx, .getpgtccfgrx = bnx2x_dcbnl_get_pg_tccfg_rx, .getpgbwgcfgrx = bnx2x_dcbnl_get_pg_bwgcfg_rx, .setpfccfg = bnx2x_dcbnl_set_pfc_cfg, .getpfccfg = bnx2x_dcbnl_get_pfc_cfg, .setall = bnx2x_dcbnl_set_all, .getcap = bnx2x_dcbnl_get_cap, .getnumtcs = bnx2x_dcbnl_get_numtcs, .setnumtcs = bnx2x_dcbnl_set_numtcs, .getpfcstate = bnx2x_dcbnl_get_pfc_state, .setpfcstate = bnx2x_dcbnl_set_pfc_state, .setapp = bnx2x_dcbnl_set_app_up, .getdcbx = bnx2x_dcbnl_get_dcbx, .setdcbx = bnx2x_dcbnl_set_dcbx, .getfeatcfg = bnx2x_dcbnl_get_featcfg, .setfeatcfg = bnx2x_dcbnl_set_featcfg, .peer_getappinfo = bnx2x_peer_appinfo, .peer_getapptable = bnx2x_peer_apptable, .cee_peer_getpg = bnx2x_cee_peer_getpg, .cee_peer_getpfc = bnx2x_cee_peer_getpfc, }; #endif /* BCM_DCBNL */
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