diff options
| -rw-r--r-- | drivers/net/bnx2x/Makefile | 2 | ||||
| -rw-r--r-- | drivers/net/bnx2x/bnx2x.h | 15 | ||||
| -rw-r--r-- | drivers/net/bnx2x/bnx2x_cmn.c | 2 | ||||
| -rw-r--r-- | drivers/net/bnx2x/bnx2x_cmn.h | 7 | ||||
| -rw-r--r-- | drivers/net/bnx2x/bnx2x_dcb.c | 1491 | ||||
| -rw-r--r-- | drivers/net/bnx2x/bnx2x_dcb.h | 193 | ||||
| -rw-r--r-- | drivers/net/bnx2x/bnx2x_hsi.h | 281 | ||||
| -rw-r--r-- | drivers/net/bnx2x/bnx2x_link.h | 40 | ||||
| -rw-r--r-- | drivers/net/bnx2x/bnx2x_main.c | 24 |
9 files changed, 2050 insertions, 5 deletions
diff --git a/drivers/net/bnx2x/Makefile b/drivers/net/bnx2x/Makefile index 084afce89ae9..bb83a2961273 100644 --- a/drivers/net/bnx2x/Makefile +++ b/drivers/net/bnx2x/Makefile @@ -4,4 +4,4 @@ obj-$(CONFIG_BNX2X) += bnx2x.o -bnx2x-objs := bnx2x_main.o bnx2x_link.o bnx2x_cmn.o bnx2x_ethtool.o bnx2x_stats.o +bnx2x-objs := bnx2x_main.o bnx2x_link.o bnx2x_cmn.o bnx2x_ethtool.o bnx2x_stats.o bnx2x_dcb.o diff --git a/drivers/net/bnx2x/bnx2x.h b/drivers/net/bnx2x/bnx2x.h index 475725c566d7..66b3b6055cef 100644 --- a/drivers/net/bnx2x/bnx2x.h +++ b/drivers/net/bnx2x/bnx2x.h @@ -50,6 +50,7 @@ #include "bnx2x_fw_defs.h" #include "bnx2x_hsi.h" #include "bnx2x_link.h" +#include "bnx2x_dcb.h" #include "bnx2x_stats.h" /* error/debug prints */ @@ -820,6 +821,8 @@ struct bnx2x_slowpath { u32 wb_comp; u32 wb_data[4]; + /* pfc configuration for DCBX ramrod */ + struct flow_control_configuration pfc_config; }; #define bnx2x_sp(bp, var) (&bp->slowpath->var) @@ -1180,6 +1183,18 @@ struct bnx2x { char fw_ver[32]; const struct firmware *firmware; + /* LLDP params */ + struct bnx2x_config_lldp_params lldp_config_params; + + /* DCBX params */ + struct bnx2x_config_dcbx_params dcbx_config_params; + + struct bnx2x_dcbx_port_params dcbx_port_params; + int dcb_version; + + /* DCBX Negotation results */ + struct dcbx_features dcbx_local_feat; + u32 dcbx_error; }; /** diff --git a/drivers/net/bnx2x/bnx2x_cmn.c b/drivers/net/bnx2x/bnx2x_cmn.c index 10eef5434386..710ce5d04c53 100644 --- a/drivers/net/bnx2x/bnx2x_cmn.c +++ b/drivers/net/bnx2x/bnx2x_cmn.c @@ -1371,6 +1371,8 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode) } } + bnx2x_dcbx_init(bp); + bp->state = BNX2X_STATE_OPENING_WAIT4_PORT; rc = bnx2x_func_start(bp); diff --git a/drivers/net/bnx2x/bnx2x_cmn.h b/drivers/net/bnx2x/bnx2x_cmn.h index 258f0c04716b..03eb4d68e6bb 100644 --- a/drivers/net/bnx2x/bnx2x_cmn.h +++ b/drivers/net/bnx2x/bnx2x_cmn.h @@ -324,6 +324,13 @@ int bnx2x_func_start(struct bnx2x *bp); void bnx2x_ilt_set_info(struct bnx2x *bp); /** + * Inintialize dcbx protocol + * + * @param bp + */ +void bnx2x_dcbx_init(struct bnx2x *bp); + +/** * Set power state to the requested value. Currently only D0 and * D3hot are supported. * diff --git a/drivers/net/bnx2x/bnx2x_dcb.c b/drivers/net/bnx2x/bnx2x_dcb.c new file mode 100644 index 000000000000..0b86480379ff --- /dev/null +++ b/drivers/net/bnx2x/bnx2x_dcb.c @@ -0,0 +1,1491 @@ +/* bnx2x_dcb.c: Broadcom Everest network driver. + * + * Copyright 2009-2010 Broadcom Corporation + * + * Unless you and Broadcom execute a separate written software license + * agreement governing use of this software, this software is licensed to you + * under the terms of the GNU General Public License version 2, available + * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL"). + * + * Notwithstanding the above, under no circumstances may you combine this + * software in any way with any other Broadcom software provided under a + * license other than the GPL, without Broadcom's express prior written + * consent. + * + * Maintained by: Eilon Greenstein <eilong@broadcom.com> + * Written by: Dmitry Kravkov + * + */ +#include <linux/netdevice.h> +#include <linux/types.h> +#include <linux/errno.h> + +#include "bnx2x.h" +#include "bnx2x_cmn.h" +#include "bnx2x_dcb.h" + + +/* forward declarations of dcbx related functions */ +static void bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp); +static void bnx2x_pfc_set_pfc(struct bnx2x *bp); +static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp); +static void bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp); +static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp, + u32 *set_configuration_ets_pg, + u32 *pri_pg_tbl); +static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp, + u32 *pg_pri_orginal_spread, + struct pg_help_data *help_data); +static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp, + struct pg_help_data *help_data, + struct dcbx_ets_feature *ets, + u32 *pg_pri_orginal_spread); +static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp, + struct cos_help_data *cos_data, + u32 *pg_pri_orginal_spread, + struct dcbx_ets_feature *ets); +static void bnx2x_pfc_fw_struct_e2(struct bnx2x *bp); + + +static void bnx2x_pfc_set(struct bnx2x *bp) +{ + struct bnx2x_nig_brb_pfc_port_params pfc_params = {0}; + u32 pri_bit, val = 0; + u8 pri; + + /* Tx COS configuration */ + if (bp->dcbx_port_params.ets.cos_params[0].pauseable) + pfc_params.rx_cos0_priority_mask = + bp->dcbx_port_params.ets.cos_params[0].pri_bitmask; + if (bp->dcbx_port_params.ets.cos_params[1].pauseable) + pfc_params.rx_cos1_priority_mask = + bp->dcbx_port_params.ets.cos_params[1].pri_bitmask; + + + /** + * Rx COS configuration + * Changing PFC RX configuration . + * In RX COS0 will always be configured to lossy and COS1 to lossless + */ + for (pri = 0 ; pri < MAX_PFC_PRIORITIES ; pri++) { + pri_bit = 1 << pri; + + if (pri_bit & DCBX_PFC_PRI_PAUSE_MASK(bp)) + val |= 1 << (pri * 4); + } + + pfc_params.pkt_priority_to_cos = val; + + /* RX COS0 */ + pfc_params.llfc_low_priority_classes = 0; + /* RX COS1 */ + pfc_params.llfc_high_priority_classes = DCBX_PFC_PRI_PAUSE_MASK(bp); + + /* BRB configuration */ + pfc_params.cos0_pauseable = false; + pfc_params.cos1_pauseable = true; + + bnx2x_acquire_phy_lock(bp); + bp->link_params.feature_config_flags |= FEATURE_CONFIG_PFC_ENABLED; + bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &pfc_params); + bnx2x_release_phy_lock(bp); +} + +static void bnx2x_pfc_clear(struct bnx2x *bp) +{ + struct bnx2x_nig_brb_pfc_port_params nig_params = {0}; + nig_params.pause_enable = 1; +#ifdef BNX2X_SAFC + if (bp->flags & SAFC_TX_FLAG) { + u32 high = 0, low = 0; + int i; + + for (i = 0; i < BNX2X_MAX_PRIORITY; i++) { + if (bp->pri_map[i] == 1) + high |= (1 << i); + if (bp->pri_map[i] == 0) + low |= (1 << i); + } + + nig_params.llfc_low_priority_classes = high; + nig_params.llfc_low_priority_classes = low; + + nig_params.pause_enable = 0; + nig_params.llfc_enable = 1; + nig_params.llfc_out_en = 1; + } +#endif /* BNX2X_SAFC */ + bnx2x_acquire_phy_lock(bp); + bp->link_params.feature_config_flags &= ~FEATURE_CONFIG_PFC_ENABLED; + bnx2x_update_pfc(&bp->link_params, &bp->link_vars, &nig_params); + bnx2x_release_phy_lock(bp); +} + +static void bnx2x_dump_dcbx_drv_param(struct bnx2x *bp, + struct dcbx_features *features, + u32 error) +{ + u8 i = 0; + DP(NETIF_MSG_LINK, "local_mib.error %x\n", error); + + /* PG */ + DP(NETIF_MSG_LINK, + "local_mib.features.ets.enabled %x\n", features->ets.enabled); + for (i = 0; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++) + DP(NETIF_MSG_LINK, + "local_mib.features.ets.pg_bw_tbl[%d] %d\n", i, + DCBX_PG_BW_GET(features->ets.pg_bw_tbl, i)); + for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) + DP(NETIF_MSG_LINK, + "local_mib.features.ets.pri_pg_tbl[%d] %d\n", i, + DCBX_PRI_PG_GET(features->ets.pri_pg_tbl, i)); + + /* pfc */ + DP(NETIF_MSG_LINK, "dcbx_features.pfc.pri_en_bitmap %x\n", + features->pfc.pri_en_bitmap); + DP(NETIF_MSG_LINK, "dcbx_features.pfc.pfc_caps %x\n", + features->pfc.pfc_caps); + DP(NETIF_MSG_LINK, "dcbx_features.pfc.enabled %x\n", + features->pfc.enabled); + + DP(NETIF_MSG_LINK, "dcbx_features.app.default_pri %x\n", + features->app.default_pri); + DP(NETIF_MSG_LINK, "dcbx_features.app.tc_supported %x\n", + features->app.tc_supported); + DP(NETIF_MSG_LINK, "dcbx_features.app.enabled %x\n", + features->app.enabled); + for (i = 0; i < DCBX_MAX_APP_PROTOCOL; i++) { + DP(NETIF_MSG_LINK, + "dcbx_features.app.app_pri_tbl[%x].app_id %x\n", + i, features->app.app_pri_tbl[i].app_id); + DP(NETIF_MSG_LINK, + "dcbx_features.app.app_pri_tbl[%x].pri_bitmap %x\n", + i, features->app.app_pri_tbl[i].pri_bitmap); + DP(NETIF_MSG_LINK, + "dcbx_features.app.app_pri_tbl[%x].appBitfield %x\n", + i, features->app.app_pri_tbl[i].appBitfield); + } +} + +static void bnx2x_dcbx_get_ap_priority(struct bnx2x *bp, + u8 pri_bitmap, + u8 llfc_traf_type) +{ + u32 pri = MAX_PFC_PRIORITIES; + u32 index = MAX_PFC_PRIORITIES - 1; + u32 pri_mask; + u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority; + + /* Choose the highest priority */ + while ((MAX_PFC_PRIORITIES == pri) && (0 != index)) { + pri_mask = 1 << index; + if (GET_FLAGS(pri_bitmap, pri_mask)) + pri = index ; + index--; + } + + if (pri < MAX_PFC_PRIORITIES) + ttp[llfc_traf_type] = max_t(u32, ttp[llfc_traf_type], pri); +} + +static void bnx2x_dcbx_get_ap_feature(struct bnx2x *bp, + struct dcbx_app_priority_feature *app, + u32 error) { + u8 index; + u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority; + + if (GET_FLAGS(error, DCBX_LOCAL_APP_ERROR)) + DP(NETIF_MSG_LINK, "DCBX_LOCAL_APP_ERROR\n"); + + if (app->enabled && !GET_FLAGS(error, DCBX_LOCAL_APP_ERROR)) { + + bp->dcbx_port_params.app.enabled = true; + + for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++) + ttp[index] = 0; + + if (app->default_pri < MAX_PFC_PRIORITIES) + ttp[LLFC_TRAFFIC_TYPE_NW] = app->default_pri; + + for (index = 0 ; index < DCBX_MAX_APP_PROTOCOL; index++) { + struct dcbx_app_priority_entry *entry = + app->app_pri_tbl; + + if (GET_FLAGS(entry[index].appBitfield, + DCBX_APP_SF_ETH_TYPE) && + ETH_TYPE_FCOE == entry[index].app_id) + bnx2x_dcbx_get_ap_priority(bp, + entry[index].pri_bitmap, + LLFC_TRAFFIC_TYPE_FCOE); + + if (GET_FLAGS(entry[index].appBitfield, + DCBX_APP_SF_PORT) && + TCP_PORT_ISCSI == entry[index].app_id) + bnx2x_dcbx_get_ap_priority(bp, + entry[index].pri_bitmap, + LLFC_TRAFFIC_TYPE_ISCSI); + } + } else { + DP(NETIF_MSG_LINK, "DCBX_LOCAL_APP_DISABLED\n"); + bp->dcbx_port_params.app.enabled = false; + for (index = 0 ; index < LLFC_DRIVER_TRAFFIC_TYPE_MAX; index++) + ttp[index] = INVALID_TRAFFIC_TYPE_PRIORITY; + } +} + +static void bnx2x_dcbx_get_ets_feature(struct bnx2x *bp, + struct dcbx_ets_feature *ets, + u32 error) { + int i = 0; + u32 pg_pri_orginal_spread[DCBX_MAX_NUM_PG_BW_ENTRIES] = {0}; + struct pg_help_data pg_help_data; + struct bnx2x_dcbx_cos_params *cos_params = + bp->dcbx_port_params.ets.cos_params; + + memset(&pg_help_data, 0, sizeof(struct pg_help_data)); + + + if (GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR)) + DP(NETIF_MSG_LINK, "DCBX_LOCAL_ETS_ERROR\n"); + + + /* Clean up old settings of ets on COS */ + for (i = 0; i < E2_NUM_OF_COS ; i++) { + + cos_params[i].pauseable = false; + cos_params[i].strict = BNX2X_DCBX_COS_NOT_STRICT; + cos_params[i].bw_tbl = DCBX_INVALID_COS_BW; + cos_params[i].pri_bitmask = DCBX_PFC_PRI_GET_NON_PAUSE(bp, 0); + } + + if (bp->dcbx_port_params.app.enabled && + !GET_FLAGS(error, DCBX_LOCAL_ETS_ERROR) && + ets->enabled) { + DP(NETIF_MSG_LINK, "DCBX_LOCAL_ETS_ENABLE\n"); + bp->dcbx_port_params.ets.enabled = true; + + bnx2x_dcbx_get_ets_pri_pg_tbl(bp, + pg_pri_orginal_spread, + ets->pri_pg_tbl); + + bnx2x_dcbx_get_num_pg_traf_type(bp, + pg_pri_orginal_spread, + &pg_help_data); + + bnx2x_dcbx_fill_cos_params(bp, &pg_help_data, + ets, pg_pri_orginal_spread); + + } else { + DP(NETIF_MSG_LINK, "DCBX_LOCAL_ETS_DISABLED\n"); + bp->dcbx_port_params.ets.enabled = false; + ets->pri_pg_tbl[0] = 0; + + for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES ; i++) + DCBX_PG_BW_SET(ets->pg_bw_tbl, i, 1); + } +} + +static void bnx2x_dcbx_get_pfc_feature(struct bnx2x *bp, + struct dcbx_pfc_feature *pfc, u32 error) +{ + + if (GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR)) + DP(NETIF_MSG_LINK, "DCBX_LOCAL_PFC_ERROR\n"); + + if (bp->dcbx_port_params.app.enabled && + !GET_FLAGS(error, DCBX_LOCAL_PFC_ERROR) && + pfc->enabled) { + bp->dcbx_port_params.pfc.enabled = true; + bp->dcbx_port_params.pfc.priority_non_pauseable_mask = + ~(pfc->pri_en_bitmap); + } else { + DP(NETIF_MSG_LINK, "DCBX_LOCAL_PFC_DISABLED\n"); + bp->dcbx_port_params.pfc.enabled = false; + bp->dcbx_port_params.pfc.priority_non_pauseable_mask = 0; + } +} + +static void bnx2x_get_dcbx_drv_param(struct bnx2x *bp, + struct dcbx_features *features, + u32 error) +{ + bnx2x_dcbx_get_ap_feature(bp, &features->app, error); + + bnx2x_dcbx_get_pfc_feature(bp, &features->pfc, error); + + bnx2x_dcbx_get_ets_feature(bp, &features->ets, error); +} + +#define DCBX_LOCAL_MIB_MAX_TRY_READ (100) +static int bnx2x_dcbx_read_mib(struct bnx2x *bp, + u32 *base_mib_addr, + u32 offset, + int read_mib_type) +{ + int max_try_read = 0, i; + u32 *buff, mib_size, prefix_seq_num, suffix_seq_num; + struct lldp_remote_mib *remote_mib ; + struct lldp_local_mib *local_mib; + + + switch (read_mib_type) { + case DCBX_READ_LOCAL_MIB: + mib_size = sizeof(struct lldp_local_mib); + break; + case DCBX_READ_REMOTE_MIB: + mib_size = sizeof(struct lldp_remote_mib); + break; + default: + return 1; /*error*/ + } + + offset += BP_PORT(bp) * mib_size; + + do { + buff = base_mib_addr; + for (i = 0; i < mib_size; i += 4, buff++) + *buff = REG_RD(bp, offset + i); + + max_try_read++; + + switch (read_mib_type) { + case DCBX_READ_LOCAL_MIB: + local_mib = (struct lldp_local_mib *) base_mib_addr; + prefix_seq_num = local_mib->prefix_seq_num; + suffix_seq_num = local_mib->suffix_seq_num; + break; + case DCBX_READ_REMOTE_MIB: + remote_mib = (struct lldp_remote_mib *) base_mib_addr; + prefix_seq_num = remote_mib->prefix_seq_num; + suffix_seq_num = remote_mib->suffix_seq_num; + break; + default: + return 1; /*error*/ + } + } while ((prefix_seq_num != suffix_seq_num) && + (max_try_read < DCBX_LOCAL_MIB_MAX_TRY_READ)); + + if (max_try_read >= DCBX_LOCAL_MIB_MAX_TRY_READ) { + BNX2X_ERR("MIB could not be read\n"); + return 1; + } + + return 0; +} + +static void bnx2x_pfc_set_pfc(struct bnx2x *bp) +{ + if (CHIP_IS_E2(bp)) { + if (BP_PORT(bp)) { + BNX2X_ERR("4 port mode is not supported"); + return; + } + + if (bp->dcbx_port_params.pfc.enabled) + + /* 1. Fills up common PFC structures if required.*/ + /* 2. Configure NIG, MAC and BRB via the elink: + * elink must first check if BMAC is not in reset + * and only then configures the BMAC + * Or, configure EMAC. + */ + bnx2x_pfc_set(bp); + + else + bnx2x_pfc_clear(bp); + } +} + +static void bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp) +{ + DP(NETIF_MSG_LINK, "sending STOP TRAFFIC\n"); + bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_STOP_TRAFFIC, + 0 /* connectionless */, + 0 /* dataHi is zero */, + 0 /* dataLo is zero */, + 1 /* common */); +} + +static void bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp) +{ + bnx2x_pfc_fw_struct_e2(bp); + DP(NETIF_MSG_LINK, "sending START TRAFFIC\n"); + bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_START_TRAFFIC, + 0, /* connectionless */ + U64_HI(bnx2x_sp_mapping(bp, pfc_config)), + U64_LO(bnx2x_sp_mapping(bp, pfc_config)), + 1 /* commmon */); +} + +static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp) +{ + struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets); + u8 status = 0; + + bnx2x_ets_disabled(&bp->link_params); + + if (!ets->enabled) + return; + + if ((ets->num_of_cos == 0) || (ets->num_of_cos > E2_NUM_OF_COS)) { + BNX2X_ERR("illegal num of cos= %x", ets->num_of_cos); + return; + } + + /* valid COS entries */ + if (ets->num_of_cos == 1) /* no ETS */ + return; + + /* sanity */ + if (((BNX2X_DCBX_COS_NOT_STRICT == ets->cos_params[0].strict) && + (DCBX_INVALID_COS_BW == ets->cos_params[0].bw_tbl)) || + ((BNX2X_DCBX_COS_NOT_STRICT == ets->cos_params[1].strict) && + (DCBX_INVALID_COS_BW == ets->cos_params[1].bw_tbl))) { + BNX2X_ERR("all COS should have at least bw_limit or strict" + "ets->cos_params[0].strict= %x" + "ets->cos_params[0].bw_tbl= %x" + "ets->cos_params[1].strict= %x" + "ets->cos_params[1].bw_tbl= %x", + ets->cos_params[0].strict, + ets->cos_params[0].bw_tbl, + ets->cos_params[1].strict, + ets->cos_params[1].bw_tbl); + return; + } + /* If we join a group and there is bw_tbl and strict then bw rules */ + if ((DCBX_INVALID_COS_BW != ets->cos_params[0].bw_tbl) && + (DCBX_INVALID_COS_BW != ets->cos_params[1].bw_tbl)) { + u32 bw_tbl_0 = ets->cos_params[0].bw_tbl; + u32 bw_tbl_1 = ets->cos_params[1].bw_tbl; + /* Do not allow 0-100 configuration + * since PBF does not support it + * force 1-99 instead + */ + if (bw_tbl_0 == 0) { + bw_tbl_0 = 1; + bw_tbl_1 = 99; + } else if (bw_tbl_1 == 0) { + bw_tbl_1 = 1; + bw_tbl_0 = 99; + } + + bnx2x_ets_bw_limit(&bp->link_params, bw_tbl_0, bw_tbl_1); + } else { + if (ets->cos_params[0].strict == BNX2X_DCBX_COS_HIGH_STRICT) + status = bnx2x_ets_strict(&bp->link_params, 0); + else if (ets->cos_params[1].strict + == BNX2X_DCBX_COS_HIGH_STRICT) + status = bnx2x_ets_strict(&bp->link_params, 1); + + if (status) + BNX2X_ERR("update_ets_params failed\n"); + } +} + +static int bnx2x_dcbx_read_shmem_neg_results(struct bnx2x *bp) +{ + struct lldp_local_mib local_mib = {0}; + u32 dcbx_neg_res_offset = SHMEM2_RD(bp, dcbx_neg_res_offset); + int rc; + + DP(NETIF_MSG_LINK, "dcbx_neg_res_offset 0x%x\n", dcbx_neg_res_offset); + + if (SHMEM_DCBX_NEG_RES_NONE == dcbx_neg_res_offset) { + BNX2X_ERR("FW doesn't support dcbx_neg_res_offset\n"); + return -EINVAL; + } + rc = bnx2x_dcbx_read_mib(bp, (u32 *)&local_mib, dcbx_neg_res_offset, + DCBX_READ_LOCAL_MIB); + + if (rc) { + BNX2X_ERR("Faild to read local mib from FW\n"); + return rc; + } + + /* save features and error */ + bp->dcbx_local_feat = local_mib.features; + bp->dcbx_error = local_mib.error; + return 0; +} + +void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state) +{ + switch (state) { + case BNX2X_DCBX_STATE_NEG_RECEIVED: + { + DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_NEG_RECEIVED\n"); + + /* Read neg results if dcbx is in the FW */ + if (bnx2x_dcbx_read_shmem_neg_results(bp)) + return; + + bnx2x_dump_dcbx_drv_param(bp, &bp->dcbx_local_feat, + bp->dcbx_error); + + bnx2x_get_dcbx_drv_param(bp, &bp->dcbx_local_feat, + bp->dcbx_error); + + if (bp->state != BNX2X_STATE_OPENING_WAIT4_LOAD) { + bnx2x_dcbx_stop_hw_tx(bp); + return; + } + /* fall through */ + } + case BNX2X_DCBX_STATE_TX_PAUSED: + DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_TX_PAUSED\n"); + bnx2x_pfc_set_pfc(bp); + + bnx2x_dcbx_update_ets_params(bp); + if (bp->state != BNX2X_STATE_OPENING_WAIT4_LOAD) { + bnx2x_dcbx_resume_hw_tx(bp); + return; + } + /* fall through */ + case BNX2X_DCBX_STATE_TX_RELEASED: + DP(NETIF_MSG_LINK, "BNX2X_DCBX_STATE_TX_RELEASED\n"); + if (bp->state != BNX2X_STATE_OPENING_WAIT4_LOAD) + bnx2x_fw_command(bp, DRV_MSG_CODE_DCBX_PMF_DRV_OK, 0); + + return; + default: + BNX2X_ERR("Unknown DCBX_STATE\n"); + } +} + + +#define LLDP_STATS_OFFSET(bp) (BP_PORT(bp)*\ + sizeof(struct lldp_dcbx_stat)) + +/* calculate struct offset in array according to chip information */ +#define LLDP_PARAMS_OFFSET(bp) (BP_PORT(bp)*sizeof(struct lldp_params)) + +#define LLDP_ADMIN_MIB_OFFSET(bp) (PORT_MAX*sizeof(struct lldp_params) + \ + BP_PORT(bp)*sizeof(struct lldp_admin_mib)) + +static void bnx2x_dcbx_lldp_updated_params(struct bnx2x *bp, + u32 dcbx_lldp_params_offset) +{ + struct lldp_params lldp_params = {0}; + u32 i = 0, *buff = NULL; + u32 offset = dcbx_lldp_params_offset + LLDP_PARAMS_OFFSET(bp); + + DP(NETIF_MSG_LINK, "lldp_offset 0x%x\n", offset); + + if ((bp->lldp_config_params.overwrite_settings == + BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE)) { + /* Read the data first */ + buff = (u32 *)&lldp_params; + for (i = 0; i < sizeof(struct lldp_params); i += 4, buff++) + *buff = REG_RD(bp, (offset + i)); + + lldp_params.msg_tx_hold = + (u8)bp->lldp_config_params.msg_tx_hold; + lldp_params.msg_fast_tx_interval = + (u8)bp->lldp_config_params.msg_fast_tx; + lldp_params.tx_crd_max = + (u8)bp->lldp_config_params.tx_credit_max; + lldp_params.msg_tx_interval = + (u8)bp->lldp_config_params.msg_tx_interval; + lldp_params.tx_fast = + (u8)bp->lldp_config_params.tx_fast; + + /* Write the data.*/ + buff = (u32 *)&lldp_params; + for (i = 0; i < sizeof(struct lldp_params); i += 4, buff++) + REG_WR(bp, (offset + i) , *buff); + + + } else if (BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE == + bp->lldp_config_params.overwrite_settings) + bp->lldp_config_params.overwrite_settings = + BNX2X_DCBX_OVERWRITE_SETTINGS_INVALID; +} + +static void bnx2x_dcbx_admin_mib_updated_params(struct bnx2x *bp, + u32 dcbx_lldp_params_offset) +{ + struct lldp_admin_mib admin_mib; + u32 i, other_traf_type = PREDEFINED_APP_IDX_MAX, traf_type = 0; + u32 *buff; + u32 offset = dcbx_lldp_params_offset + LLDP_ADMIN_MIB_OFFSET(bp); + + /*shortcuts*/ + struct dcbx_features *af = &admin_mib.features; + struct bnx2x_config_dcbx_params *dp = &bp->dcbx_config_params; + + memset(&admin_mib, 0, sizeof(struct lldp_admin_mib)); + buff = (u32 *)&admin_mib; + /* Read the data first */ + for (i = 0; i < sizeof(struct lldp_admin_mib); i += 4, buff++) + *buff = REG_RD(bp, (offset + i)); + + + if (BNX2X_DCBX_CONFIG_INV_VALUE != dp->admin_dcbx_enable) { + if (dp->admin_dcbx_enable) + SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED); + else + RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_DCBX_ENABLED); + } + + if ((BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE == + dp->overwrite_settings)) { + RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_CEE_VERSION_MASK); + admin_mib.ver_cfg_flags |= + (dp->admin_dcbx_version << DCBX_CEE_VERSION_SHIFT) & + DCBX_CEE_VERSION_MASK; + + af->ets.enabled = (u8)dp->admin_ets_enable; + + af->pfc.enabled = (u8)dp->admin_pfc_enable; + + /* FOR IEEE dp->admin_tc_supported_tx_enable */ + if (dp->admin_ets_configuration_tx_enable) + SET_FLAGS(admin_mib.ver_cfg_flags, + DCBX_ETS_CONFIG_TX_ENABLED); + else + RESET_FLAGS(admin_mib.ver_cfg_flags, + DCBX_ETS_CONFIG_TX_ENABLED); + /* For IEEE admin_ets_recommendation_tx_enable */ + if (dp->admin_pfc_tx_enable) + SET_FLAGS(admin_mib.ver_cfg_flags, + DCBX_PFC_CONFIG_TX_ENABLED); + else + RESET_FLAGS(admin_mib.ver_cfg_flags, + DCBX_PFC_CONFIG_TX_ENABLED); + + if (dp->admin_application_priority_tx_enable) + SET_FLAGS(admin_mib.ver_cfg_flags, + DCBX_APP_CONFIG_TX_ENABLED); + else + RESET_FLAGS(admin_mib.ver_cfg_flags, + DCBX_APP_CONFIG_TX_ENABLED); + + if (dp->admin_ets_willing) + SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING); + else + RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_ETS_WILLING); + /* For IEEE admin_ets_reco_valid */ + if (dp->admin_pfc_willing) + SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING); + else + RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_PFC_WILLING); + + if (dp->admin_app_priority_willing) + SET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING); + else + RESET_FLAGS(admin_mib.ver_cfg_flags, DCBX_APP_WILLING); + + for (i = 0 ; i < DCBX_MAX_NUM_PG_BW_ENTRIES; i++) { + DCBX_PG_BW_SET(af->ets.pg_bw_tbl, i, + (u8)dp->admin_configuration_bw_precentage[i]); + + DP(NETIF_MSG_LINK, "pg_bw_tbl[%d] = %02x\n", + i, DCBX_PG_BW_GET(af->ets.pg_bw_tbl, i)); + } + + for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) { + DCBX_PRI_PG_SET(af->ets.pri_pg_tbl, i, + (u8)dp->admin_configuration_ets_pg[i]); + + DP(NETIF_MSG_LINK, "pri_pg_tbl[%d] = %02x\n", + i, DCBX_PRI_PG_GET(af->ets.pri_pg_tbl, i)); + } + + /*For IEEE admin_recommendation_bw_precentage + *For IEEE admin_recommendation_ets_pg */ + af->pfc.pri_en_bitmap = (u8)dp->admin_pfc_bitmap; + for (i = 0; i < 4; i++) { + if (dp->admin_priority_app_table[i].valid) { + struct bnx2x_admin_priority_app_table *table = + dp->admin_priority_app_table; + if ((ETH_TYPE_FCOE == table[i].app_id) && + (TRAFFIC_TYPE_ETH == table[i].traffic_type)) + traf_type = FCOE_APP_IDX; + else if ((TCP_PORT_ISCSI == table[i].app_id) && + (TRAFFIC_TYPE_PORT == table[i].traffic_type)) + traf_type = ISCSI_APP_IDX; + else + traf_type = other_traf_type++; + + af->app.app_pri_tbl[traf_type].app_id = + table[i].app_id; + + af->app.app_pri_tbl[traf_type].pri_bitmap = + (u8)(1 << table[i].priority); + + af->app.app_pri_tbl[traf_type].appBitfield = + (DCBX_APP_ENTRY_VALID); + + af->app.app_pri_tbl[traf_type].appBitfield |= + (TRAFFIC_TYPE_ETH == table[i].traffic_type) ? + DCBX_APP_SF_ETH_TYPE : DCBX_APP_SF_PORT; + } + } + + af->app.default_pri = (u8)dp->admin_default_priority; + + } else if (BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE == + dp->overwrite_settings) + dp->overwrite_settings = BNX2X_DCBX_OVERWRITE_SETTINGS_INVALID; + + /* Write the data. */ + buff = (u32 *)&admin_mib; + for (i = 0; i < sizeof(struct lldp_admin_mib); i += 4, buff++) + REG_WR(bp, (offset + i), *buff); +} + +/* default */ +void bnx2x_dcbx_init_params(struct bnx2x *bp) +{ + bp->dcbx_config_params.admin_dcbx_version = 0x0; /* 0 - CEE; 1 - IEEE */ + bp->dcbx_config_params.dcb_enable = 1; + bp->dcbx_config_params.admin_dcbx_enable = 1; + bp->dcbx_config_params.admin_ets_willing = 1; + bp->dcbx_config_params.admin_pfc_willing = 1; + bp->dcbx_config_params.overwrite_settings = 1; + bp->dcbx_config_params.admin_ets_enable = 1; + bp->dcbx_config_params.admin_pfc_enable = 1; + bp->dcbx_config_params.admin_tc_supported_tx_enable = 1; + bp->dcbx_config_params.admin_ets_configuration_tx_enable = 1; + bp->dcbx_config_params.admin_pfc_tx_enable = 1; + bp->dcbx_config_params.admin_application_priority_tx_enable = 1; + bp->dcbx_config_params.admin_ets_reco_valid = 1; + bp->dcbx_config_params.admin_app_priority_willing = 1; + bp->dcbx_config_params.admin_configuration_bw_precentage[0] = 00; + bp->dcbx_config_params.admin_configuration_bw_precentage[1] = 50; + bp->dcbx_config_params.admin_configuration_bw_precentage[2] = 50; + bp->dcbx_config_params.admin_configuration_bw_precentage[3] = 0; + bp->dcbx_config_params.admin_configuration_bw_precentage[4] = 0; + bp->dcbx_config_params.admin_configuration_bw_precentage[5] = 0; + bp->dcbx_config_params.admin_configuration_bw_precentage[6] = 0; + bp->dcbx_config_params.admin_configuration_bw_precentage[7] = 0; + bp->dcbx_config_params.admin_configuration_ets_pg[0] = 1; + bp->dcbx_config_params.admin_configuration_ets_pg[1] = 0; + bp->dcbx_config_params.admin_configuration_ets_pg[2] = 0; + bp->dcbx_config_params.admin_configuration_ets_pg[3] = 2; + bp->dcbx_config_params.admin_configuration_ets_pg[4] = 0; + bp->dcbx_config_params.admin_configuration_ets_pg[5] = 0; + bp->dcbx_config_params.admin_configuration_ets_pg[6] = 0; + bp->dcbx_config_params.admin_configuration_ets_pg[7] = 0; + bp->dcbx_config_params.admin_recommendation_bw_precentage[0] = 0; + bp->dcbx_config_params.admin_recommendation_bw_precentage[1] = 1; + bp->dcbx_config_params.admin_recommendation_bw_precentage[2] = 2; + bp->dcbx_config_params.admin_recommendation_bw_precentage[3] = 0; + bp->dcbx_config_params.admin_recommendation_bw_precentage[4] = 7; + bp->dcbx_config_params.admin_recommendation_bw_precentage[5] = 5; + bp->dcbx_config_params.admin_recommendation_bw_precentage[6] = 6; + bp->dcbx_config_params.admin_recommendation_bw_precentage[7] = 7; + bp->dcbx_config_params.admin_recommendation_ets_pg[0] = 0; + bp->dcbx_config_params.admin_recommendation_ets_pg[1] = 1; + bp->dcbx_config_params.admin_recommendation_ets_pg[2] = 2; + bp->dcbx_config_params.admin_recommendation_ets_pg[3] = 3; + bp->dcbx_config_params.admin_recommendation_ets_pg[4] = 4; + bp->dcbx_config_params.admin_recommendation_ets_pg[5] = 5; + bp->dcbx_config_params.admin_recommendation_ets_pg[6] = 6; + bp->dcbx_config_params.admin_recommendation_ets_pg[7] = 7; + bp->dcbx_config_params.admin_pfc_bitmap = 0x8; /* FCoE(3) enable */ + bp->dcbx_config_params.admin_priority_app_table[0].valid = 1; + bp->dcbx_config_params.admin_priority_app_table[1].valid = 1; + bp->dcbx_config_params.admin_priority_app_table[2].valid = 0; + bp->dcbx_config_params.admin_priority_app_table[3].valid = 0; + bp->dcbx_config_params.admin_priority_app_table[0].priority = 3; + bp->dcbx_config_params.admin_priority_app_table[1].priority = 0; + bp->dcbx_config_params.admin_priority_app_table[2].priority = 0; + bp->dcbx_config_params.admin_priority_app_table[3].priority = 0; + bp->dcbx_config_params.admin_priority_app_table[0].traffic_type = 0; + bp->dcbx_config_params.admin_priority_app_table[1].traffic_type = 1; + bp->dcbx_config_params.admin_priority_app_table[2].traffic_type = 0; + bp->dcbx_config_params.admin_priority_app_table[3].traffic_type = 0; + bp->dcbx_config_params.admin_priority_app_table[0].app_id = 0x8906; + bp->dcbx_config_params.admin_priority_app_table[1].app_id = 3260; + bp->dcbx_config_params.admin_priority_app_table[2].app_id = 0; + bp->dcbx_config_params.admin_priority_app_table[3].app_id = 0; + bp->dcbx_config_params.admin_default_priority = + bp->dcbx_config_params.admin_priority_app_table[1].priority; +} + +void bnx2x_dcbx_init(struct bnx2x *bp) +{ + u32 dcbx_lldp_params_offset = SHMEM_LLDP_DCBX_PARAMS_NONE; + /* validate: + * chip of good for dcbx version, + * dcb is wanted + * the function is pmf + * shmem2 contains DCBX support fields + */ + DP(NETIF_MSG_LINK, "dcb_enable %d bp->port.pmf %d\n", + bp->dcbx_config_params.dcb_enable, bp->port.pmf); + + if (CHIP_IS_E2(bp) && !CHIP_MODE_IS_4_PORT(bp) && + bp->dcbx_config_params.dcb_enable && + bp->port.pmf && + SHMEM2_HAS(bp, dcbx_lldp_params_offset)) { + dcbx_lldp_params_offset = SHMEM2_RD(bp, + dcbx_lldp_params_offset); + DP(NETIF_MSG_LINK, "dcbx_lldp_params_offset 0x%x\n", + dcbx_lldp_params_offset); + if (SHMEM_LLDP_DCBX_PARAMS_NONE != dcbx_lldp_params_offset) { + bnx2x_dcbx_lldp_updated_params(bp, + dcbx_lldp_params_offset); + + bnx2x_dcbx_admin_mib_updated_params(bp, + dcbx_lldp_params_offset); + + /* set default configuration BC has */ + bnx2x_dcbx_set_params(bp, + BNX2X_DCBX_STATE_NEG_RECEIVED); + + bnx2x_fw_command(bp, + DRV_MSG_CODE_DCBX_ADMIN_PMF_MSG, 0); + } + } +} + +void bnx2x_dcb_init_intmem_pfc(struct bnx2x *bp) +{ + struct priority_cos pricos[MAX_PFC_TRAFFIC_TYPES]; + u32 i = 0, addr; + memset(pricos, 0, sizeof(pricos)); + /* Default initialization */ + for (i = 0; i < MAX_PFC_TRAFFIC_TYPES; i++) + pricos[i].priority = LLFC_TRAFFIC_TYPE_TO_PRIORITY_UNMAPPED; + + /* Store per port struct to internal memory */ + addr = BAR_XSTRORM_INTMEM + + XSTORM_CMNG_PER_PORT_VARS_OFFSET(BP_PORT(bp)) + + offsetof(struct cmng_struct_per_port, + traffic_type_to_priority_cos); + __storm_memset_struct(bp, addr, sizeof(pricos), (u32 *)pricos); + + + /* LLFC disabled.*/ + REG_WR8(bp , BAR_XSTRORM_INTMEM + + XSTORM_CMNG_PER_PORT_VARS_OFFSET(BP_PORT(bp)) + + offsetof(struct cmng_struct_per_port, llfc_mode), + LLFC_MODE_NONE); + + /* DCBX disabled.*/ + REG_WR8(bp , BAR_XSTRORM_INTMEM + + XSTORM_CMNG_PER_PORT_VARS_OFFSET(BP_PORT(bp)) + + offsetof(struct cmng_struct_per_port, dcb_enabled), + DCB_DISABLED); +} + +static void +bnx2x_dcbx_print_cos_params(struct bnx2x *bp, + struct flow_control_configuration *pfc_fw_cfg) +{ + u8 pri = 0; + u8 cos = 0; + + DP(NETIF_MSG_LINK, + "pfc_fw_cfg->dcb_version %x\n", pfc_fw_cfg->dcb_version); + DP(NETIF_MSG_LINK, + "pdev->params.dcbx_port_params.pfc." + "priority_non_pauseable_mask %x\n", + bp->dcbx_port_params.pfc.priority_non_pauseable_mask); + + for (cos = 0 ; cos < bp->dcbx_port_params.ets.num_of_cos ; cos++) { + DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets." + "cos_params[%d].pri_bitmask %x\n", cos, + bp->dcbx_port_params.ets.cos_params[cos].pri_bitmask); + + DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets." + "cos_params[%d].bw_tbl %x\n", cos, + bp->dcbx_port_params.ets.cos_params[cos].bw_tbl); + + DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets." + "cos_params[%d].strict %x\n", cos, + bp->dcbx_port_params.ets.cos_params[cos].strict); + + DP(NETIF_MSG_LINK, "pdev->params.dcbx_port_params.ets." + "cos_params[%d].pauseable %x\n", cos, + bp->dcbx_port_params.ets.cos_params[cos].pauseable); + } + + for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) { + DP(NETIF_MSG_LINK, + "pfc_fw_cfg->traffic_type_to_priority_cos[%d]." + "priority %x\n", pri, + pfc_fw_cfg->traffic_type_to_priority_cos[pri].priority); + + DP(NETIF_MSG_LINK, + "pfc_fw_cfg->traffic_type_to_priority_cos[%d].cos %x\n", + pri, pfc_fw_cfg->traffic_type_to_priority_cos[pri].cos); + } +} + +/* fills help_data according to pg_info */ +static void bnx2x_dcbx_get_num_pg_traf_type(struct bnx2x *bp, + u32 *pg_pri_orginal_spread, + struct pg_help_data *help_data) +{ + bool pg_found = false; + u32 i, traf_type, add_traf_type, add_pg; + u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority; + struct pg_entry_help_data *data = help_data->data; /*shotcut*/ + + /* Set to invalid */ + for (i = 0; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++) + data[i].pg = DCBX_ILLEGAL_PG; + + for (add_traf_type = 0; + add_traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX; add_traf_type++) { + pg_found = false; + if (ttp[add_traf_type] < MAX_PFC_PRIORITIES) { + add_pg = (u8)pg_pri_orginal_spread[ttp[add_traf_type]]; + for (traf_type = 0; + traf_type < LLFC_DRIVER_TRAFFIC_TYPE_MAX; + traf_type++) { + if (data[traf_type].pg == add_pg) { + if (!(data[traf_type].pg_priority & + (1 << ttp[add_traf_type]))) + data[traf_type]. + num_of_dif_pri++; + data[traf_type].pg_priority |= + (1 << ttp[add_traf_type]); + pg_found = true; + break; + } + } + if (false == pg_found) { + data[help_data->num_of_pg].pg = add_pg; + data[help_data->num_of_pg].pg_priority = + (1 << ttp[add_traf_type]); + data[help_data->num_of_pg].num_of_dif_pri = 1; + help_data->num_of_pg++; + } + } + DP(NETIF_MSG_LINK, + "add_traf_type %d pg_found %s num_of_pg %d\n", + add_traf_type, (false == pg_found) ? "NO" : "YES", + help_data->num_of_pg); + } +} + + +/******************************************************************************* + * Description: single priority group + * + * Return: + ******************************************************************************/ +static void bnx2x_dcbx_ets_disabled_entry_data(struct bnx2x *bp, + struct cos_help_data *cos_data, + u32 pri_join_mask) +{ + /* Only one priority than only one COS */ + cos_data->data[0].pausable = + IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask); + cos_data->data[0].pri_join_mask = pri_join_mask; + cos_data->data[0].cos_bw = 100; + cos_data->num_of_cos = 1; +} + +/******************************************************************************* + * Description: updating the cos bw + * + * Return: + ******************************************************************************/ +static inline void bnx2x_dcbx_add_to_cos_bw(struct bnx2x *bp, + struct cos_entry_help_data *data, + u8 pg_bw) +{ + if (data->cos_bw == DCBX_INVALID_COS_BW) + data->cos_bw = pg_bw; + else + data->cos_bw += pg_bw; +} + +/******************************************************************************* + * Description: single priority group + * + * Return: + ******************************************************************************/ +static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp, + struct cos_help_data *cos_data, + u32 *pg_pri_orginal_spread, + struct dcbx_ets_feature *ets) +{ + u32 pri_tested = 0; + u8 i = 0; + u8 entry = 0; + u8 pg_entry = 0; + u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX; + + cos_data->data[0].pausable = true; + cos_data->data[1].pausable = false; + cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0; + + for (i = 0 ; i < num_of_pri ; i++) { + pri_tested = 1 << bp->dcbx_port_params. + app.traffic_type_priority[i]; + + if (pri_tested & DCBX_PFC_PRI_NON_PAUSE_MASK(bp)) { + cos_data->data[1].pri_join_mask |= pri_tested; + entry = 1; + } else { + cos_data->data[0].pri_join_mask |= pri_tested; + entry = 0; + } + pg_entry = (u8)pg_pri_orginal_spread[bp->dcbx_port_params. + app.traffic_type_priority[i]]; + /* There can be only one strict pg */ + if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES) + bnx2x_dcbx_add_to_cos_bw(bp, &cos_data->data[entry], + DCBX_PG_BW_GET(ets->pg_bw_tbl, pg_entry)); + else + /* If we join a group and one is strict + * than the bw rulls */ + cos_data->data[entry].strict = + BNX2X_DCBX_COS_HIGH_STRICT; + } + if ((0 == cos_data->data[0].pri_join_mask) && + (0 == cos_data->data[1].pri_join_mask)) + BNX2X_ERR("dcbx error: Both groups must have priorities\n"); +} + + +#ifndef POWER_OF_2 +#define POWER_OF_2(x) ((0 != x) && (0 == (x & (x-1)))) +#endif + +static void bxn2x_dcbx_single_pg_to_cos_params(struct bnx2x *bp, + struct pg_help_data *pg_help_data, + struct cos_help_data *cos_data, + u32 pri_join_mask, + u8 num_of_dif_pri) +{ + u8 i = 0; + u32 pri_tested = 0; + u32 pri_mask_without_pri = 0; + u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority; + /*debug*/ + if (num_of_dif_pri == 1) { + bnx2x_dcbx_ets_disabled_entry_data(bp, cos_data, pri_join_mask); + return; + } + /* single priority group */ + if (pg_help_data->data[0].pg < DCBX_MAX_NUM_PG_BW_ENTRIES) { + /* If there are both pauseable and non-pauseable priorities, + * the pauseable priorities go to the first queue and + * the non-pauseable priorities go to the second queue. + */ + if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) { + /* Pauseable */ + cos_data->data[0].pausable = true; + /* Non pauseable.*/ + cos_data->data[1].pausable = false; + + if (2 == num_of_dif_pri) { + cos_data->data[0].cos_bw = 50; + cos_data->data[1].cos_bw = 50; + } + + if (3 == num_of_dif_pri) { + if (POWER_OF_2(DCBX_PFC_PRI_GET_PAUSE(bp, + pri_join_mask))) { + cos_data->data[0].cos_bw = 33; + cos_data->data[1].cos_bw = 67; + } else { + cos_data->data[0].cos_bw = 67; + cos_data->data[1].cos_bw = 33; + } + } + + } else if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask)) { + /* If there are only pauseable priorities, + * then one/two priorities go to the first queue + * and one priority goes to the second queue. + */ + if (2 == num_of_dif_pri) { + cos_data->data[0].cos_bw = 50; + cos_data->data[1].cos_bw = 50; + } else { + cos_data->data[0].cos_bw = 67; + cos_data->data[1].cos_bw = 33; + } + cos_data->data[1].pausable = true; + cos_data->data[0].pausable = true; + /* All priorities except FCOE */ + cos_data->data[0].pri_join_mask = (pri_join_mask & + ((u8)~(1 << ttp[LLFC_TRAFFIC_TYPE_FCOE]))); + /* Only FCOE priority.*/ + cos_data->data[1].pri_join_mask = + (1 << ttp[LLFC_TRAFFIC_TYPE_FCOE]); + } else + /* If there are only non-pauseable priorities, + * they will all go to the same queue. + */ + bnx2x_dcbx_ets_disabled_entry_data(bp, + cos_data, pri_join_mask); + } else { + /* priority group which is not BW limited (PG#15):*/ + if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) { + /* If there are both pauseable and non-pauseable + * priorities, the pauseable priorities go to the first + * queue and the non-pauseable priorities + * go to the second queue. + */ + if (DCBX_PFC_PRI_GET_PAUSE(bp, pri_join_mask) > + DCBX_PFC_PRI_GET_NON_PAUSE(bp, pri_join_mask)) { + cos_data->data[0].strict = + BNX2X_DCBX_COS_HIGH_STRICT; + cos_data->data[1].strict = + BNX2X_DCBX_COS_LOW_STRICT; + } else { + cos_data->data[0].strict = + BNX2X_DCBX_COS_LOW_STRICT; + cos_data->data[1].strict = + BNX2X_DCBX_COS_HIGH_STRICT; + } + /* Pauseable */ + cos_data->data[0].pausable = true; + /* Non pause-able.*/ + cos_data->data[1].pausable = false; + } else { + /* If there are only pauseable priorities or + * only non-pauseable,* the lower priorities go + * to the first queue and the higherpriorities go + * to the second queue. + */ + cos_data->data[0].pausable = + cos_data->data[1].pausable = + IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask); + + for (i = 0 ; i < LLFC_DRIVER_TRAFFIC_TYPE_MAX; i++) { + pri_tested = 1 << bp->dcbx_port_params. + app.traffic_type_priority[i]; + /* Remove priority tested */ + pri_mask_without_pri = + (pri_join_mask & ((u8)(~pri_tested))); + if (pri_mask_without_pri < pri_tested) + break; + } + + if (i == LLFC_DRIVER_TRAFFIC_TYPE_MAX) + BNX2X_ERR("Invalid value for pri_join_mask -" + " could not find a priority\n"); + + cos_data->data[0].pri_join_mask = pri_mask_without_pri; + cos_data->data[1].pri_join_mask = pri_tested; + /* Both queues are strict priority, + * and that with the highest priority + * gets the highest strict priority in the arbiter. + */ + cos_data->data[0].strict = BNX2X_DCBX_COS_LOW_STRICT; + cos_data->data[1].strict = BNX2X_DCBX_COS_HIGH_STRICT; + } + } +} + +static void bnx2x_dcbx_two_pg_to_cos_params( + struct bnx2x *bp, + struct pg_help_data *pg_help_data, + struct dcbx_ets_feature *ets, + struct cos_help_data *cos_data, + u32 *pg_pri_orginal_spread, + u32 pri_join_mask, + u8 num_of_dif_pri) +{ + u8 i = 0; + u8 pg[E2_NUM_OF_COS] = {0}; + + /* If there are both pauseable and non-pauseable priorities, + * the pauseable priorities go to the first queue and + * the non-pauseable priorities go to the second queue. + */ + if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) { + if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, + pg_help_data->data[0].pg_priority) || + IS_DCBX_PFC_PRI_MIX_PAUSE(bp, + pg_help_data->data[1].pg_priority)) { + /* If one PG contains both pauseable and + * non-pauseable priorities then ETS is disabled. + */ + bnx2x_dcbx_separate_pauseable_from_non(bp, cos_data, + pg_pri_orginal_spread, ets); + bp->dcbx_port_params.ets.enabled = false; + return; + } + + /* Pauseable */ + cos_data->data[0].pausable = true; + /* Non pauseable. */ + cos_data->data[1].pausable = false; + if (IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, + pg_help_data->data[0].pg_priority)) { + /* 0 is pauseable */ + cos_data->data[0].pri_join_mask = + pg_help_data->data[0].pg_priority; + pg[0] = pg_help_data->data[0].pg; + cos_data->data[1].pri_join_mask = + pg_help_data->data[1].pg_priority; + pg[1] = pg_help_data->data[1].pg; + } else {/* 1 is pauseable */ + cos_data->data[0].pri_join_mask = + pg_help_data->data[1].pg_priority; + pg[0] = pg_help_data->data[1].pg; + cos_data->data[1].pri_join_mask = + pg_help_data->data[0].pg_priority; + pg[1] = pg_help_data->data[0].pg; + } + } else { + /* If there are only pauseable priorities or + * only non-pauseable, each PG goes to a queue. + */ + cos_data->data[0].pausable = cos_data->data[1].pausable = + IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask); + cos_data->data[0].pri_join_mask = + pg_help_data->data[0].pg_priority; + pg[0] = pg_help_data->data[0].pg; + cos_data->data[1].pri_join_mask = + pg_help_data->data[1].pg_priority; + pg[1] = pg_help_data->data[1].pg; + } + + /* There can be only one strict pg */ + for (i = 0 ; i < E2_NUM_OF_COS; i++) { + if (pg[i] < DCBX_MAX_NUM_PG_BW_ENTRIES) + cos_data->data[i].cos_bw = + DCBX_PG_BW_GET(ets->pg_bw_tbl, pg[i]); + else + cos_data->data[i].strict = BNX2X_DCBX_COS_HIGH_STRICT; + } +} + +/******************************************************************************* + * Description: Still + * + * Return: + ******************************************************************************/ +static void bnx2x_dcbx_three_pg_to_cos_params( + struct bnx2x *bp, + struct pg_help_data *pg_help_data, + struct dcbx_ets_feature *ets, + struct cos_help_data *cos_data, + u32 *pg_pri_orginal_spread, + u32 pri_join_mask, + u8 num_of_dif_pri) +{ + u8 i = 0; + u32 pri_tested = 0; + u8 entry = 0; + u8 pg_entry = 0; + bool b_found_strict = false; + u8 num_of_pri = LLFC_DRIVER_TRAFFIC_TYPE_MAX; + + cos_data->data[0].pri_join_mask = cos_data->data[1].pri_join_mask = 0; + /* If there are both pauseable and non-pauseable priorities, + * the pauseable priorities go to the first queue and the + * non-pauseable priorities go to the second queue. + */ + if (IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pri_join_mask)) + bnx2x_dcbx_separate_pauseable_from_non(bp, + cos_data, pg_pri_orginal_spread, ets); + else { + /* If two BW-limited PG-s were combined to one queue, + * the BW is their sum. + * + * If there are only pauseable priorities or only non-pauseable, + * and there are both BW-limited and non-BW-limited PG-s, + * the BW-limited PG/s go to one queue and the non-BW-limited + * PG/s go to the second queue. + * + * If there are only pauseable priorities or only non-pauseable + * and all are BW limited, then two priorities go to the first + * queue and one priority goes to the second queue. + * + * We will join this two cases: + * if one is BW limited it will go to the secoend queue + * otherwise the last priority will get it + */ + + cos_data->data[0].pausable = cos_data->data[1].pausable = + IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pri_join_mask); + + for (i = 0 ; i < num_of_pri; i++) { + pri_tested = 1 << bp->dcbx_port_params. + app.traffic_type_priority[i]; + pg_entry = (u8)pg_pri_orginal_spread[bp-> + dcbx_port_params.app.traffic_type_priority[i]]; + + if (pg_entry < DCBX_MAX_NUM_PG_BW_ENTRIES) { + entry = 0; + + if (i == (num_of_pri-1) && + false == b_found_strict) + /* last entry will be handled separately + * If no priority is strict than last + * enty goes to last queue.*/ + entry = 1; + cos_data->data[entry].pri_join_mask |= + pri_tested; + bnx2x_dcbx_add_to_cos_bw(bp, + &cos_data->data[entry], + DCBX_PG_BW_GET(ets->pg_bw_tbl, + pg_entry)); + } else { + b_found_strict = true; + cos_data->data[1].pri_join_mask |= pri_tested; + /* If we join a group and one is strict + * than the bw rulls */ + cos_data->data[1].strict = + BNX2X_DCBX_COS_HIGH_STRICT; + } + } + } +} + + +static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp, + struct pg_help_data *help_data, + struct dcbx_ets_feature *ets, + u32 *pg_pri_orginal_spread) +{ + struct cos_help_data cos_data ; + u8 i = 0; + u32 pri_join_mask = 0; + u8 num_of_dif_pri = 0; + + memset(&cos_data, 0, sizeof(cos_data)); + /* Validate the pg value */ + for (i = 0; i < help_data->num_of_pg ; i++) { + if (DCBX_STRICT_PRIORITY != help_data->data[i].pg && + DCBX_MAX_NUM_PG_BW_ENTRIES <= help_data->data[i].pg) + BNX2X_ERR("Invalid pg[%d] data %x\n", i, + help_data->data[i].pg); + pri_join_mask |= help_data->data[i].pg_priority; + num_of_dif_pri += help_data->data[i].num_of_dif_pri; + } + + /* default settings */ + cos_data.num_of_cos = 2; + for (i = 0; i < E2_NUM_OF_COS ; i++) { + cos_data.data[i].pri_join_mask = pri_join_mask; + cos_data.data[i].pausable = false; + cos_data.data[i].strict = BNX2X_DCBX_COS_NOT_STRICT; + cos_data.data[i].cos_bw = DCBX_INVALID_COS_BW; + } + + switch (help_data->num_of_pg) { + case 1: + + bxn2x_dcbx_single_pg_to_cos_params( + bp, + help_data, + &cos_data, + pri_join_mask, + num_of_dif_pri); + break; + case 2: + bnx2x_dcbx_two_pg_to_cos_params( + bp, + help_data, + ets, + &cos_data, + pg_pri_orginal_spread, + pri_join_mask, + num_of_dif_pri); + break; + + case 3: + bnx2x_dcbx_three_pg_to_cos_params( + bp, + help_data, + ets, + &cos_data, + pg_pri_orginal_spread, + pri_join_mask, + num_of_dif_pri); + + break; + default: + BNX2X_ERR("Wrong pg_help_data.num_of_pg\n"); + bnx2x_dcbx_ets_disabled_entry_data(bp, + &cos_data, pri_join_mask); + } + + for (i = 0; i < cos_data.num_of_cos ; i++) { + struct bnx2x_dcbx_cos_params *params = + &bp->dcbx_port_params.ets.cos_params[i]; + + params->pauseable = cos_data.data[i].pausable; + params->strict = cos_data.data[i].strict; + params->bw_tbl = cos_data.data[i].cos_bw; + if (params->pauseable) { + params->pri_bitmask = + DCBX_PFC_PRI_GET_PAUSE(bp, + cos_data.data[i].pri_join_mask); + DP(NETIF_MSG_LINK, "COS %d PAUSABLE prijoinmask 0x%x\n", + i, cos_data.data[i].pri_join_mask); + } else { + params->pri_bitmask = + DCBX_PFC_PRI_GET_NON_PAUSE(bp, + cos_data.data[i].pri_join_mask); + DP(NETIF_MSG_LINK, "COS %d NONPAUSABLE prijoinmask " + "0x%x\n", + i, cos_data.data[i].pri_join_mask); + } + } + + bp->dcbx_port_params.ets.num_of_cos = cos_data.num_of_cos ; +} + +static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp, + u32 *set_configuration_ets_pg, + u32 *pri_pg_tbl) +{ + int i; + + for (i = 0; i < DCBX_MAX_NUM_PRI_PG_ENTRIES; i++) { + set_configuration_ets_pg[i] = DCBX_PRI_PG_GET(pri_pg_tbl, i); + + DP(NETIF_MSG_LINK, "set_configuration_ets_pg[%d] = 0x%x\n", + i, set_configuration_ets_pg[i]); + } +} + +/******************************************************************************* + * Description: Fill pfc_config struct that will be sent in DCBX start ramrod + * + * Return: + ******************************************************************************/ +static void bnx2x_pfc_fw_struct_e2(struct bnx2x *bp) +{ + struct flow_control_configuration *pfc_fw_cfg = 0; + u16 pri_bit = 0; + u8 cos = 0, pri = 0; + struct priority_cos *tt2cos; + u32 *ttp = bp->dcbx_port_params.app.traffic_type_priority; + + pfc_fw_cfg = (struct flow_control_configuration *) + bnx2x_sp(bp, pfc_config); + memset(pfc_fw_cfg, 0, sizeof(struct flow_control_configuration)); + + /*shortcut*/ + tt2cos = pfc_fw_cfg->traffic_type_to_priority_cos; + + /* Fw version should be incremented each update */ + pfc_fw_cfg->dcb_version = ++bp->dcb_version; + pfc_fw_cfg->dcb_enabled = DCB_ENABLED; + + /* Default initialization */ + for (pri = 0; pri < MAX_PFC_TRAFFIC_TYPES ; pri++) { + tt2cos[pri].priority = LLFC_TRAFFIC_TYPE_TO_PRIORITY_UNMAPPED; + tt2cos[pri].cos = 0; + } + + /* Fill priority parameters */ + for (pri = 0; pri < LLFC_DRIVER_TRAFFIC_TYPE_MAX; pri++) { + tt2cos[pri].priority = ttp[pri]; + pri_bit = 1 << tt2cos[pri].priority; + + /* Fill COS parameters based on COS calculated to + * make it more generally for future use */ + for (cos = 0; cos < bp->dcbx_port_params.ets.num_of_cos; cos++) + if (bp->dcbx_port_params.ets.cos_params[cos]. + pri_bitmask & pri_bit) + tt2cos[pri].cos = cos; + } + bnx2x_dcbx_print_cos_params(bp, pfc_fw_cfg); +} diff --git a/drivers/net/bnx2x/bnx2x_dcb.h b/drivers/net/bnx2x/bnx2x_dcb.h new file mode 100644 index 000000000000..8dea56b511f5 --- /dev/null +++ b/drivers/net/bnx2x/bnx2x_dcb.h @@ -0,0 +1,193 @@ +/* bnx2x_dcb.h: Broadcom Everest network driver. + * + * Copyright 2009-2010 Broadcom Corporation + * + * Unless you and Broadcom execute a separate written software license + * agreement governing use of this software, this software is licensed to you + * under the terms of the GNU General Public License version 2, available + * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL"). + * + * Notwithstanding the above, under no circumstances may you combine this + * software in any way with any other Broadcom software provided under a + * license other than the GPL, without Broadcom's express prior written + * consent. + * + * Maintained by: Eilon Greenstein <eilong@broadcom.com> + * Written by: Dmitry Kravkov + * + */ +#ifndef BNX2X_DCB_H +#define BNX2X_DCB_H + +#include "bnx2x_hsi.h" + +#define LLFC_DRIVER_TRAFFIC_TYPE_MAX 3 /* NW, iSCSI, FCoE */ +struct bnx2x_dcbx_app_params { + u32 enabled; + u32 traffic_type_priority[LLFC_DRIVER_TRAFFIC_TYPE_MAX]; +}; + +#define E2_NUM_OF_COS 2 +#define BNX2X_DCBX_COS_NOT_STRICT 0 +#define BNX2X_DCBX_COS_LOW_STRICT 1 +#define BNX2X_DCBX_COS_HIGH_STRICT 2 + +struct bnx2x_dcbx_cos_params { + u32 bw_tbl; + u32 pri_bitmask; + u8 strict; + u8 pauseable; +}; + +struct bnx2x_dcbx_pg_params { + u32 enabled; + u8 num_of_cos; /* valid COS entries */ + struct bnx2x_dcbx_cos_params cos_params[E2_NUM_OF_COS]; +}; + +struct bnx2x_dcbx_pfc_params { + u32 enabled; + u32 priority_non_pauseable_mask; +}; + +struct bnx2x_dcbx_port_params { + u32 dcbx_enabled; + struct bnx2x_dcbx_pfc_params pfc; + struct bnx2x_dcbx_pg_params ets; + struct bnx2x_dcbx_app_params app; +}; + +#define BNX2X_DCBX_CONFIG_INV_VALUE (0xFFFFFFFF) +#define BNX2X_DCBX_OVERWRITE_SETTINGS_DISABLE 0 +#define BNX2X_DCBX_OVERWRITE_SETTINGS_ENABLE 1 +#define BNX2X_DCBX_OVERWRITE_SETTINGS_INVALID (BNX2X_DCBX_CONFIG_INV_VALUE) + +/******************************************************************************* + * LLDP protocol configuration parameters. + ******************************************************************************/ +struct bnx2x_config_lldp_params { + u32 overwrite_settings; + u32 msg_tx_hold; + u32 msg_fast_tx; + u32 tx_credit_max; + u32 msg_tx_interval; + u32 tx_fast; +}; + +struct bnx2x_admin_priority_app_table { + u32 valid; + u32 priority; +#define INVALID_TRAFFIC_TYPE_PRIORITY (0xFFFFFFFF) + u32 traffic_type; +#define TRAFFIC_TYPE_ETH 0 +#define TRAFFIC_TYPE_PORT 1 + u32 app_id; +}; + +/******************************************************************************* + * DCBX protocol configuration parameters. + ******************************************************************************/ +struct bnx2x_config_dcbx_params { + u32 dcb_enable; + u32 admin_dcbx_enable; + u32 overwrite_settings; + u32 admin_dcbx_version; + u32 admin_ets_enable; + u32 admin_pfc_enable; + u32 admin_tc_supported_tx_enable; + u32 admin_ets_configuration_tx_enable; + u32 admin_ets_recommendation_tx_enable; + u32 admin_pfc_tx_enable; + u32 admin_application_priority_tx_enable; + u32 admin_ets_willing; + u32 admin_ets_reco_valid; + u32 admin_pfc_willing; + u32 admin_app_priority_willing; + u32 admin_configuration_bw_precentage[8]; + u32 admin_configuration_ets_pg[8]; + u32 admin_recommendation_bw_precentage[8]; + u32 admin_recommendation_ets_pg[8]; + u32 admin_pfc_bitmap; + struct bnx2x_admin_priority_app_table admin_priority_app_table[4]; + u32 admin_default_priority; +}; + +#define GET_FLAGS(flags, bits) ((flags) & (bits)) +#define SET_FLAGS(flags, bits) ((flags) |= (bits)) +#define RESET_FLAGS(flags, bits) ((flags) &= ~(bits)) + +enum { + DCBX_READ_LOCAL_MIB, + DCBX_READ_REMOTE_MIB +}; + +#define ETH_TYPE_FCOE (0x8906) +#define TCP_PORT_ISCSI (0xCBC) + +#define PFC_VALUE_FRAME_SIZE (512) +#define PFC_QUANTA_IN_NANOSEC_FROM_SPEED_MEGA(mega_speed) \ + ((1000 * PFC_VALUE_FRAME_SIZE)/(mega_speed)) + +#define PFC_BRB1_REG_HIGH_LLFC_LOW_THRESHOLD 130 +#define PFC_BRB1_REG_HIGH_LLFC_HIGH_THRESHOLD 170 + + + +struct cos_entry_help_data { + u32 pri_join_mask; + u32 cos_bw; + u8 strict; + bool pausable; +}; + +struct cos_help_data { + struct cos_entry_help_data data[E2_NUM_OF_COS]; + u8 num_of_cos; +}; + +#define DCBX_ILLEGAL_PG (0xFF) +#define DCBX_PFC_PRI_MASK (0xFF) +#define DCBX_STRICT_PRIORITY (15) +#define DCBX_INVALID_COS_BW (0xFFFFFFFF) +#define DCBX_PFC_PRI_NON_PAUSE_MASK(bp) \ + ((bp)->dcbx_port_params.pfc.priority_non_pauseable_mask) +#define DCBX_PFC_PRI_PAUSE_MASK(bp) \ + ((u8)~DCBX_PFC_PRI_NON_PAUSE_MASK(bp)) +#define DCBX_PFC_PRI_GET_PAUSE(bp, pg_pri) \ + ((pg_pri) & (DCBX_PFC_PRI_PAUSE_MASK(bp))) +#define DCBX_PFC_PRI_GET_NON_PAUSE(bp, pg_pri) \ + (DCBX_PFC_PRI_NON_PAUSE_MASK(bp) & (pg_pri)) +#define IS_DCBX_PFC_PRI_ONLY_PAUSE(bp, pg_pri) \ + (pg_pri == DCBX_PFC_PRI_GET_PAUSE((bp), (pg_pri))) +#define IS_DCBX_PFC_PRI_ONLY_NON_PAUSE(bp, pg_pri)\ + ((pg_pri) == DCBX_PFC_PRI_GET_NON_PAUSE((bp), (pg_pri))) +#define IS_DCBX_PFC_PRI_MIX_PAUSE(bp, pg_pri) \ + (!(IS_DCBX_PFC_PRI_ONLY_NON_PAUSE((bp), (pg_pri)) || \ + IS_DCBX_PFC_PRI_ONLY_PAUSE((bp), (pg_pri)))) + + +struct pg_entry_help_data { + u8 num_of_dif_pri; + u8 pg; + u32 pg_priority; +}; + +struct pg_help_data { + struct pg_entry_help_data data[LLFC_DRIVER_TRAFFIC_TYPE_MAX]; + u8 num_of_pg; +}; + +/* forward DCB/PFC related declarations */ +struct bnx2x; +void bnx2x_dcb_init_intmem_pfc(struct bnx2x *bp); +void bnx2x_dcbx_update(struct work_struct *work); +void bnx2x_dcbx_init_params(struct bnx2x *bp); + +enum { + BNX2X_DCBX_STATE_NEG_RECEIVED = 0x1, + BNX2X_DCBX_STATE_TX_PAUSED = 0x2, + BNX2X_DCBX_STATE_TX_RELEASED = 0x4 +}; +void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state); + +#endif /* BNX2X_DCB_H */ diff --git a/drivers/net/bnx2x/bnx2x_hsi.h b/drivers/net/bnx2x/bnx2x_hsi.h index 6555c477f893..ed90ec831fe0 100644 --- a/drivers/net/bnx2x/bnx2x_hsi.h +++ b/drivers/net/bnx2x/bnx2x_hsi.h @@ -684,7 +684,7 @@ struct shm_dev_info { /* size */ #define E1VN_MAX 1 #define E1HVN_MAX 4 - +#define E2_VF_MAX 64 /* This value (in milliseconds) determines the frequency of the driver * issuing the PULSE message code. The firmware monitors this periodic * pulse to determine when to switch to an OS-absent mode. */ @@ -820,6 +820,8 @@ struct drv_func_mb { #define DRV_MSG_CODE_VRFY_SPECIFIC_PHY_OPT_MDL 0xa1000000 #define REQ_BC_VER_4_VRFY_SPECIFIC_PHY_OPT_MDL 0x00050234 +#define DRV_MSG_CODE_DCBX_ADMIN_PMF_MSG 0xb0000000 +#define DRV_MSG_CODE_DCBX_PMF_DRV_OK 0xb2000000 #define DRV_MSG_CODE_SET_MF_BW 0xe0000000 #define REQ_BC_VER_4_SET_MF_BW 0x00060202 #define DRV_MSG_CODE_SET_MF_BW_ACK 0xe1000000 @@ -905,6 +907,8 @@ struct drv_func_mb { #define DRV_STATUS_DCC_RESERVED1 0x00000800 #define DRV_STATUS_DCC_SET_PROTOCOL 0x00001000 #define DRV_STATUS_DCC_SET_PRIORITY 0x00002000 +#define DRV_STATUS_DCBX_EVENT_MASK 0x000f0000 +#define DRV_STATUS_DCBX_NEGOTIATION_RESULTS 0x00010000 u32 virt_mac_upper; #define VIRT_MAC_SIGN_MASK 0xffff0000 @@ -1089,6 +1093,251 @@ struct fw_flr_mb { struct fw_flr_ack ack; }; +/**** SUPPORT FOR SHMEM ARRRAYS *** + * The SHMEM HSI is aligned on 32 bit boundaries which makes it difficult to + * define arrays with storage types smaller then unsigned dwords. + * The macros below add generic support for SHMEM arrays with numeric elements + * that can span 2,4,8 or 16 bits. The array underlying type is a 32 bit dword + * array with individual bit-filed elements accessed using shifts and masks. + * + */ + +/* eb is the bitwidth of a single element */ +#define SHMEM_ARRAY_MASK(eb) ((1<<(eb))-1) +#define SHMEM_ARRAY_ENTRY(i, eb) ((i)/(32/(eb))) + +/* the bit-position macro allows the used to flip the order of the arrays + * elements on a per byte or word boundary. + * + * example: an array with 8 entries each 4 bit wide. This array will fit into + * a single dword. The diagrmas below show the array order of the nibbles. + * + * SHMEM_ARRAY_BITPOS(i, 4, 4) defines the stadard ordering: + * + * | | | | + * 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | + * | | | | + * + * SHMEM_ARRAY_BITPOS(i, 4, 8) defines a flip ordering per byte: + * + * | | | | + * 1 | 0 | 3 | 2 | 5 | 4 | 7 | 6 | + * | | | | + * + * SHMEM_ARRAY_BITPOS(i, 4, 16) defines a flip ordering per word: + * + * | | | | + * 3 | 2 | 1 | 0 | 7 | 6 | 5 | 4 | + * | | | | + */ +#define SHMEM_ARRAY_BITPOS(i, eb, fb) \ + ((((32/(fb)) - 1 - ((i)/((fb)/(eb))) % (32/(fb))) * (fb)) + \ + (((i)%((fb)/(eb))) * (eb))) + +#define SHMEM_ARRAY_GET(a, i, eb, fb) \ + ((a[SHMEM_ARRAY_ENTRY(i, eb)] >> SHMEM_ARRAY_BITPOS(i, eb, fb)) & \ + SHMEM_ARRAY_MASK(eb)) + +#define SHMEM_ARRAY_SET(a, i, eb, fb, val) \ +do { \ + a[SHMEM_ARRAY_ENTRY(i, eb)] &= ~(SHMEM_ARRAY_MASK(eb) << \ + SHMEM_ARRAY_BITPOS(i, eb, fb)); \ + a[SHMEM_ARRAY_ENTRY(i, eb)] |= (((val) & SHMEM_ARRAY_MASK(eb)) << \ + SHMEM_ARRAY_BITPOS(i, eb, fb)); \ +} while (0) + + +/****START OF DCBX STRUCTURES DECLARATIONS****/ +#define DCBX_MAX_NUM_PRI_PG_ENTRIES 8 +#define DCBX_PRI_PG_BITWIDTH 4 +#define DCBX_PRI_PG_FBITS 8 +#define DCBX_PRI_PG_GET(a, i) \ + SHMEM_ARRAY_GET(a, i, DCBX_PRI_PG_BITWIDTH, DCBX_PRI_PG_FBITS) +#define DCBX_PRI_PG_SET(a, i, val) \ + SHMEM_ARRAY_SET(a, i, DCBX_PRI_PG_BITWIDTH, DCBX_PRI_PG_FBITS, val) +#define DCBX_MAX_NUM_PG_BW_ENTRIES 8 +#define DCBX_BW_PG_BITWIDTH 8 +#define DCBX_PG_BW_GET(a, i) \ + SHMEM_ARRAY_GET(a, i, DCBX_BW_PG_BITWIDTH, DCBX_BW_PG_BITWIDTH) +#define DCBX_PG_BW_SET(a, i, val) \ + SHMEM_ARRAY_SET(a, i, DCBX_BW_PG_BITWIDTH, DCBX_BW_PG_BITWIDTH, val) +#define DCBX_STRICT_PRI_PG 15 +#define DCBX_MAX_APP_PROTOCOL 16 +#define FCOE_APP_IDX 0 +#define ISCSI_APP_IDX 1 +#define PREDEFINED_APP_IDX_MAX 2 + +struct dcbx_ets_feature { + u32 enabled; + u32 pg_bw_tbl[2]; + u32 pri_pg_tbl[1]; +}; + +struct dcbx_pfc_feature { +#ifdef __BIG_ENDIAN + u8 pri_en_bitmap; +#define DCBX_PFC_PRI_0 0x01 +#define DCBX_PFC_PRI_1 0x02 +#define DCBX_PFC_PRI_2 0x04 +#define DCBX_PFC_PRI_3 0x08 +#define DCBX_PFC_PRI_4 0x10 +#define DCBX_PFC_PRI_5 0x20 +#define DCBX_PFC_PRI_6 0x40 +#define DCBX_PFC_PRI_7 0x80 + u8 pfc_caps; + u8 reserved; + u8 enabled; +#elif defined(__LITTLE_ENDIAN) + u8 enabled; + u8 reserved; + u8 pfc_caps; + u8 pri_en_bitmap; +#define DCBX_PFC_PRI_0 0x01 +#define DCBX_PFC_PRI_1 0x02 +#define DCBX_PFC_PRI_2 0x04 +#define DCBX_PFC_PRI_3 0x08 +#define DCBX_PFC_PRI_4 0x10 +#define DCBX_PFC_PRI_5 0x20 +#define DCBX_PFC_PRI_6 0x40 +#define DCBX_PFC_PRI_7 0x80 +#endif +}; + +struct dcbx_app_priority_entry { +#ifdef __BIG_ENDIAN + u16 app_id; + u8 pri_bitmap; + u8 appBitfield; +#define DCBX_APP_ENTRY_VALID 0x01 +#define DCBX_APP_ENTRY_SF_MASK 0x30 +#define DCBX_APP_ENTRY_SF_SHIFT 4 +#define DCBX_APP_SF_ETH_TYPE 0x10 +#define DCBX_APP_SF_PORT 0x20 +#elif defined(__LITTLE_ENDIAN) + u8 appBitfield; +#define DCBX_APP_ENTRY_VALID 0x01 +#define DCBX_APP_ENTRY_SF_MASK 0x30 +#define DCBX_APP_ENTRY_SF_SHIFT 4 +#define DCBX_APP_SF_ETH_TYPE 0x10 +#define DCBX_APP_SF_PORT 0x20 + u8 pri_bitmap; + u16 app_id; +#endif +}; + +struct dcbx_app_priority_feature { +#ifdef __BIG_ENDIAN + u8 reserved; + u8 default_pri; + u8 tc_supported; + u8 enabled; +#elif defined(__LITTLE_ENDIAN) + u8 enabled; + u8 tc_supported; + u8 default_pri; + u8 reserved; +#endif + struct dcbx_app_priority_entry app_pri_tbl[DCBX_MAX_APP_PROTOCOL]; +}; + +struct dcbx_features { + struct dcbx_ets_feature ets; + struct dcbx_pfc_feature pfc; + struct dcbx_app_priority_feature app; +}; + +struct lldp_params { +#ifdef __BIG_ENDIAN + u8 msg_fast_tx_interval; + u8 msg_tx_hold; + u8 msg_tx_interval; + u8 admin_status; +#define LLDP_TX_ONLY 0x01 +#define LLDP_RX_ONLY 0x02 +#define LLDP_TX_RX 0x03 +#define LLDP_DISABLED 0x04 + u8 reserved1; + u8 tx_fast; + u8 tx_crd_max; + u8 tx_crd; +#elif defined(__LITTLE_ENDIAN) + u8 admin_status; +#define LLDP_TX_ONLY 0x01 +#define LLDP_RX_ONLY 0x02 +#define LLDP_TX_RX 0x03 +#define LLDP_DISABLED 0x04 + u8 msg_tx_interval; + u8 msg_tx_hold; + u8 msg_fast_tx_interval; + u8 tx_crd; + u8 tx_crd_max; + u8 tx_fast; + u8 reserved1; +#endif +#define REM_CHASSIS_ID_STAT_LEN 4 +#define REM_PORT_ID_STAT_LEN 4 + u32 peer_chassis_id[REM_CHASSIS_ID_STAT_LEN]; + u32 peer_port_id[REM_PORT_ID_STAT_LEN]; +}; + +struct lldp_dcbx_stat { +#define LOCAL_CHASSIS_ID_STAT_LEN 2 +#define LOCAL_PORT_ID_STAT_LEN 2 + u32 local_chassis_id[LOCAL_CHASSIS_ID_STAT_LEN]; + u32 local_port_id[LOCAL_PORT_ID_STAT_LEN]; + u32 num_tx_dcbx_pkts; + u32 num_rx_dcbx_pkts; +}; + +struct lldp_admin_mib { + u32 ver_cfg_flags; +#define DCBX_ETS_CONFIG_TX_ENABLED 0x00000001 +#define DCBX_PFC_CONFIG_TX_ENABLED 0x00000002 +#define DCBX_APP_CONFIG_TX_ENABLED 0x00000004 +#define DCBX_ETS_RECO_TX_ENABLED 0x00000008 +#define DCBX_ETS_RECO_VALID 0x00000010 +#define DCBX_ETS_WILLING 0x00000020 +#define DCBX_PFC_WILLING 0x00000040 +#define DCBX_APP_WILLING 0x00000080 +#define DCBX_VERSION_CEE 0x00000100 +#define DCBX_VERSION_IEEE 0x00000200 +#define DCBX_DCBX_ENABLED 0x00000400 +#define DCBX_CEE_VERSION_MASK 0x0000f000 +#define DCBX_CEE_VERSION_SHIFT 12 +#define DCBX_CEE_MAX_VERSION_MASK 0x000f0000 +#define DCBX_CEE_MAX_VERSION_SHIFT 16 + struct dcbx_features features; +}; + +struct lldp_remote_mib { + u32 prefix_seq_num; + u32 flags; +#define DCBX_ETS_TLV_RX 0x00000001 +#define DCBX_PFC_TLV_RX 0x00000002 +#define DCBX_APP_TLV_RX 0x00000004 +#define DCBX_ETS_RX_ERROR 0x00000010 +#define DCBX_PFC_RX_ERROR 0x00000020 +#define DCBX_APP_RX_ERROR 0x00000040 +#define DCBX_ETS_REM_WILLING 0x00000100 +#define DCBX_PFC_REM_WILLING 0x00000200 +#define DCBX_APP_REM_WILLING 0x00000400 +#define DCBX_REMOTE_ETS_RECO_VALID 0x00001000 + struct dcbx_features features; + u32 suffix_seq_num; +}; + +struct lldp_local_mib { + u32 prefix_seq_num; + u32 error; +#define DCBX_LOCAL_ETS_ERROR 0x00000001 +#define DCBX_LOCAL_PFC_ERROR 0x00000002 +#define DCBX_LOCAL_APP_ERROR 0x00000004 +#define DCBX_LOCAL_PFC_MISMATCH 0x00000010 +#define DCBX_LOCAL_APP_MISMATCH 0x00000020 + struct dcbx_features features; + u32 suffix_seq_num; +}; +/***END OF DCBX STRUCTURES DECLARATIONS***/ struct shmem2_region { @@ -1112,7 +1361,12 @@ struct shmem2_region { #define SHMEM_MF_CFG_ADDR_NONE 0x00000000 struct fw_flr_mb flr_mb; - u32 reserved[3]; + u32 dcbx_lldp_params_offset; +#define SHMEM_LLDP_DCBX_PARAMS_NONE 0x00000000 + u32 dcbx_neg_res_offset; +#define SHMEM_DCBX_NEG_RES_NONE 0x00000000 + u32 dcbx_remote_mib_offset; +#define SHMEM_DCBX_REMOTE_MIB_NONE 0x00000000 /* * The other shmemX_base_addr holds the other path's shmem address * required for example in case of common phy init, or for path1 to know @@ -1121,6 +1375,10 @@ struct shmem2_region { */ u32 other_shmem_base_addr; u32 other_shmem2_base_addr; + u32 reserved1[E2_VF_MAX / 32]; + u32 reserved2[E2_FUNC_MAX][E2_VF_MAX / 32]; + u32 dcbx_lldp_dcbx_stat_offset; +#define SHMEM_LLDP_DCBX_STAT_NONE 0x00000000 }; @@ -3023,6 +3281,25 @@ struct fairness_vars_per_vn { /* + * The data for flow control configuration + */ +struct flow_control_configuration { + struct priority_cos + traffic_type_to_priority_cos[MAX_PFC_TRAFFIC_TYPES]; +#if defined(__BIG_ENDIAN) + u16 reserved1; + u8 dcb_version; + u8 dcb_enabled; +#elif defined(__LITTLE_ENDIAN) + u8 dcb_enabled; + u8 dcb_version; + u16 reserved1; +#endif + u32 reserved2; +}; + + +/* * FW version stored in the Xstorm RAM */ struct fw_version { diff --git a/drivers/net/bnx2x/bnx2x_link.h b/drivers/net/bnx2x/bnx2x_link.h index 171abf8097ee..149f84258d8b 100644 --- a/drivers/net/bnx2x/bnx2x_link.h +++ b/drivers/net/bnx2x/bnx2x_link.h @@ -216,6 +216,7 @@ struct link_params { u32 feature_config_flags; #define FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED (1<<0) +#define FEATURE_CONFIG_PFC_ENABLED (1<<1) #define FEATURE_CONFIG_BC_SUPPORTS_OPT_MDL_VRFY (1<<2) #define FEATURE_CONFIG_BC_SUPPORTS_DUAL_PHY_OPT_MDL_VRFY (1<<3) /* Will be populated during common init */ @@ -332,4 +333,43 @@ u8 bnx2x_phy_probe(struct link_params *params); u8 bnx2x_fan_failure_det_req(struct bnx2x *bp, u32 shmem_base, u32 shmem2_base, u8 port); +/* PFC port configuration params */ +struct bnx2x_nig_brb_pfc_port_params { + /* NIG */ + u32 pause_enable; + u32 llfc_out_en; + u32 llfc_enable; + u32 pkt_priority_to_cos; + u32 rx_cos0_priority_mask; + u32 rx_cos1_priority_mask; + u32 llfc_high_priority_classes; + u32 llfc_low_priority_classes; + /* BRB */ + u32 cos0_pauseable; + u32 cos1_pauseable; +}; + +/** + * Used to update the PFC attributes in EMAC, BMAC, NIG and BRB + * when link is already up + */ +void bnx2x_update_pfc(struct link_params *params, + struct link_vars *vars, + struct bnx2x_nig_brb_pfc_port_params *pfc_params); + + +/* Used to configure the ETS to disable */ +void bnx2x_ets_disabled(struct link_params *params); + +/* Used to configure the ETS to BW limited */ +void bnx2x_ets_bw_limit(const struct link_params *params, const u32 cos0_bw, + const u32 cos1_bw); + +/* Used to configure the ETS to strict */ +u8 bnx2x_ets_strict(const struct link_params *params, const u8 strict_cos); + +/* Read pfc statistic*/ +void bnx2x_pfc_statistic(struct link_params *params, struct link_vars *vars, + u32 pfc_frames_sent[2], + u32 pfc_frames_received[2]); #endif /* BNX2X_LINK_H */ diff --git a/drivers/net/bnx2x/bnx2x_main.c b/drivers/net/bnx2x/bnx2x_main.c index 563b2cb8e544..bdc3fc26b31a 100644 --- a/drivers/net/bnx2x/bnx2x_main.c +++ b/drivers/net/bnx2x/bnx2x_main.c @@ -55,6 +55,7 @@ #include "bnx2x_init.h" #include "bnx2x_init_ops.h" #include "bnx2x_cmn.h" +#include "bnx2x_dcb.h" #include <linux/firmware.h> #include "bnx2x_fw_file_hdr.h" @@ -3105,6 +3106,11 @@ static inline void bnx2x_attn_int_deasserted3(struct bnx2x *bp, u32 attn) if ((bp->port.pmf == 0) && (val & DRV_STATUS_PMF)) bnx2x_pmf_update(bp); + if (bp->port.pmf && + (val & DRV_STATUS_DCBX_NEGOTIATION_RESULTS)) + /* start dcbx state machine */ + bnx2x_dcbx_set_params(bp, + BNX2X_DCBX_STATE_NEG_RECEIVED); } else if (attn & BNX2X_MC_ASSERT_BITS) { BNX2X_ERR("MC assert!\n"); @@ -3724,6 +3730,15 @@ static void bnx2x_eq_int(struct bnx2x *bp) BNX2X_FP_STATE_CLOSED; goto next_spqe; + + case EVENT_RING_OPCODE_STOP_TRAFFIC: + DP(NETIF_MSG_IFUP, "got STOP TRAFFIC\n"); + bnx2x_dcbx_set_params(bp, BNX2X_DCBX_STATE_TX_PAUSED); + goto next_spqe; + case EVENT_RING_OPCODE_START_TRAFFIC: + DP(NETIF_MSG_IFUP, "got START TRAFFIC\n"); + bnx2x_dcbx_set_params(bp, BNX2X_DCBX_STATE_TX_RELEASED); + goto next_spqe; } switch (opcode | bp->state) { @@ -4363,6 +4378,7 @@ static void bnx2x_init_internal_common(struct bnx2x *bp) static void bnx2x_init_internal_port(struct bnx2x *bp) { /* port */ + bnx2x_dcb_init_intmem_pfc(bp); } static void bnx2x_init_internal(struct bnx2x *bp, u32 load_code) @@ -5488,8 +5504,10 @@ static int bnx2x_init_hw_port(struct bnx2x *bp) * - SF mode: bits 3-7 are masked. only bits 0-2 are in use * - MF mode: bit 3 is masked. bits 0-2 are in use as in SF * bits 4-7 are used for "per vn group attention" */ - REG_WR(bp, MISC_REG_AEU_MASK_ATTN_FUNC_0 + port*4, - (IS_MF(bp) ? 0xF7 : 0x7)); + val = IS_MF(bp) ? 0xF7 : 0x7; + /* Enable DCBX attention for all but E1 */ + val |= CHIP_IS_E1(bp) ? 0 : 0x10; + REG_WR(bp, MISC_REG_AEU_MASK_ATTN_FUNC_0 + port*4, val); bnx2x_init_block(bp, PXPCS_BLOCK, init_stage); bnx2x_init_block(bp, EMAC0_BLOCK, init_stage); @@ -8775,6 +8793,8 @@ static int __devinit bnx2x_init_bp(struct bnx2x *bp) bp->timer.data = (unsigned long) bp; bp->timer.function = bnx2x_timer; + bnx2x_dcbx_init_params(bp); + return rc; } |