From d1976b2e6478a1b8ff2dc35979e7791e2d668285 Mon Sep 17 00:00:00 2001 From: Dmitry Kravkov Date: Tue, 14 Jun 2011 01:34:42 +0000 Subject: [PATCH] bnx2x: PFC support for 578xx Add supoprt for 3 COSes for 578xx devices. Fix HW configuration for PFC feature according to new HSI in link layer. Signed-off-by: Dmitry Kravkov Signed-off-by: Vladislav Zolotarov Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller --- drivers/net/bnx2x/bnx2x_dcb.c | 504 ++++++++++++++++++++++++++++++++---------- drivers/net/bnx2x/bnx2x_dcb.h | 23 +- 2 files changed, 406 insertions(+), 121 deletions(-) diff --git a/drivers/net/bnx2x/bnx2x_dcb.c b/drivers/net/bnx2x/bnx2x_dcb.c index 50a5c4f3d..b51a759 100644 --- a/drivers/net/bnx2x/bnx2x_dcb.c +++ b/drivers/net/bnx2x/bnx2x_dcb.c @@ -47,33 +47,39 @@ 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_dcbx_fw_struct(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; 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++) - if (bp->dcbx_port_params.ets.cos_params[i].pauseable) - pfc_params.rx_cos_priority_mask[i] = - bp->dcbx_port_params.ets. - cos_params[i].pri_bitmask; + /* + * 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 lossy and COS1 to lossless */ - for (pri = 0 ; pri < MAX_PFC_PRIORITIES ; pri++) { - pri_bit = 1 << pri; + for (i = 0 ; i < MAX_PFC_PRIORITIES ; i++) { + pri_bit = 1 << i; if (pri_bit & DCBX_PFC_PRI_PAUSE_MASK(bp)) - val |= 1 << (pri * 4); + val |= 1 << (i * 4); } pfc_params.pkt_priority_to_cos = val; @@ -252,12 +258,11 @@ static void bnx2x_dcbx_get_ets_feature(struct bnx2x *bp, /* Clean up old settings of ets on COS */ - for (i = 0; i < E2_NUM_OF_COS ; i++) { - + 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_COS_NOT_STRICT; + cos_params[i].strict = BNX2X_DCBX_STRICT_INVALID; cos_params[i].bw_tbl = DCBX_INVALID_COS_BW; - cos_params[i].pri_bitmask = DCBX_PFC_PRI_GET_NON_PAUSE(bp, 0); + cos_params[i].pri_bitmask = 0; } if (bp->dcbx_port_params.app.enabled && @@ -377,25 +382,19 @@ static int bnx2x_dcbx_read_mib(struct bnx2x *bp, static void bnx2x_pfc_set_pfc(struct bnx2x *bp) { - if (!CHIP_IS_E1x(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); + 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 + */ + bnx2x_pfc_set(bp); + else + bnx2x_pfc_clear(bp); } static void bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp) @@ -410,7 +409,7 @@ static void bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp) static void bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp) { - bnx2x_pfc_fw_struct_e2(bp); + bnx2x_dcbx_fw_struct(bp); DP(NETIF_MSG_LINK, "sending START TRAFFIC\n"); bnx2x_sp_post(bp, RAMROD_CMD_ID_COMMON_START_TRAFFIC, 0, /* connectionless */ @@ -419,18 +418,13 @@ static void bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp) NONE_CONNECTION_TYPE); } -static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp) +static void bnx2x_dcbx_2cos_limit_update_ets_config(struct bnx2x *bp) { struct bnx2x_dcbx_pg_params *ets = &(bp->dcbx_port_params.ets); - u8 status = 0; - - bnx2x_ets_disabled(&bp->link_params, &bp->link_vars); - - if (!ets->enabled) - return; + int rc = 0; - 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); + 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; } @@ -439,9 +433,9 @@ static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp) return; /* sanity */ - if (((BNX2X_DCBX_COS_NOT_STRICT == ets->cos_params[0].strict) && + if (((BNX2X_DCBX_STRICT_INVALID == 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) && + ((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" @@ -473,17 +467,70 @@ static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp) 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); + 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_COS_HIGH_STRICT) - status = bnx2x_ets_strict(&bp->link_params, 1); - - if (status) + == 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. + */ +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) +{ + bnx2x_ets_disabled(&bp->link_params, &bp->link_vars); + + if (!bp->dcbx_port_params.ets.enabled) + 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) { @@ -1113,7 +1160,7 @@ static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp, /* If we join a group and one is strict * than the bw rulls */ cos_data->data[entry].strict = - BNX2X_DCBX_COS_HIGH_STRICT; + BNX2X_DCBX_STRICT_COS_HIGHEST; } if ((0 == cos_data->data[0].pri_join_mask) && (0 == cos_data->data[1].pri_join_mask)) @@ -1125,7 +1172,7 @@ static void bnx2x_dcbx_separate_pauseable_from_non(struct bnx2x *bp, #define POWER_OF_2(x) ((0 != x) && (0 == (x & (x-1)))) #endif -static void bxn2x_dcbx_single_pg_to_cos_params(struct bnx2x *bp, +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, @@ -1205,14 +1252,16 @@ static void bxn2x_dcbx_single_pg_to_cos_params(struct bnx2x *bp, 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; + BNX2X_DCBX_STRICT_COS_HIGHEST; cos_data->data[1].strict = - BNX2X_DCBX_COS_LOW_STRICT; + BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI( + BNX2X_DCBX_STRICT_COS_HIGHEST); } else { cos_data->data[0].strict = - BNX2X_DCBX_COS_LOW_STRICT; + BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI( + BNX2X_DCBX_STRICT_COS_HIGHEST); cos_data->data[1].strict = - BNX2X_DCBX_COS_HIGH_STRICT; + BNX2X_DCBX_STRICT_COS_HIGHEST; } /* Pauseable */ cos_data->data[0].pausable = true; @@ -1248,13 +1297,16 @@ static void bxn2x_dcbx_single_pg_to_cos_params(struct bnx2x *bp, * 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; + 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_two_pg_to_cos_params( +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, @@ -1264,7 +1316,7 @@ static void bnx2x_dcbx_two_pg_to_cos_params( u8 num_of_dif_pri) { u8 i = 0; - u8 pg[E2_NUM_OF_COS] = {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 @@ -1320,16 +1372,68 @@ static void bnx2x_dcbx_two_pg_to_cos_params( } /* There can be only one strict pg */ - for (i = 0 ; i < E2_NUM_OF_COS; i++) { + 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_COS_HIGH_STRICT; + 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_three_pg_to_cos_params( +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, @@ -1401,102 +1505,272 @@ static void bnx2x_dcbx_three_pg_to_cos_params( /* If we join a group and one is strict * than the bw rulls */ cos_data->data[1].strict = - BNX2X_DCBX_COS_HIGH_STRICT; + BNX2X_DCBX_STRICT_COS_HIGHEST; } } } } -static void bnx2x_dcbx_fill_cos_params(struct bnx2x *bp, +static void bnx2x_dcbx_2cos_limit_cee_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, + u32 *pg_pri_orginal_spread, + u32 pri_join_mask, + u8 num_of_dif_pri) { - 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; - } + /* default E2 settings */ + cos_data->num_of_cos = DCBX_COS_MAX_NUM_E2; switch (help_data->num_of_pg) { case 1: - - bxn2x_dcbx_single_pg_to_cos_params( + bnx2x_dcbx_2cos_limit_cee_single_pg_to_cos_params( bp, help_data, - &cos_data, + cos_data, pri_join_mask, num_of_dif_pri); break; case 2: - bnx2x_dcbx_two_pg_to_cos_params( + bnx2x_dcbx_2cos_limit_cee_two_pg_to_cos_params( bp, help_data, ets, - &cos_data, + cos_data, pg_pri_orginal_spread, pri_join_mask, num_of_dif_pri); break; case 3: - bnx2x_dcbx_three_pg_to_cos_params( + bnx2x_dcbx_2cos_limit_cee_three_pg_to_cos_params( bp, help_data, ets, - &cos_data, + 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); + 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) + 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 *params = + struct bnx2x_dcbx_cos_params *p = &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); + 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(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); + else 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 ; @@ -1516,7 +1790,7 @@ static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp, } } -static void bnx2x_pfc_fw_struct_e2(struct bnx2x *bp) +static void bnx2x_dcbx_fw_struct(struct bnx2x *bp) { struct flow_control_configuration *pfc_fw_cfg = NULL; u16 pri_bit = 0; @@ -1838,10 +2112,12 @@ static u8 bnx2x_dcbnl_get_numtcs(struct net_device *netdev, int tcid, u8 *num) if (bp->dcb_state) { switch (tcid) { case DCB_NUMTCS_ATTR_PG: - *num = E2_NUM_OF_COS; + *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 : + DCBX_COS_MAX_NUM_E2; break; case DCB_NUMTCS_ATTR_PFC: - *num = E2_NUM_OF_COS; + *num = CHIP_IS_E3B0(bp) ? DCBX_COS_MAX_NUM_E3B0 : + DCBX_COS_MAX_NUM_E2; break; default: rval = -EINVAL; diff --git a/drivers/net/bnx2x/bnx2x_dcb.h b/drivers/net/bnx2x/bnx2x_dcb.h index b3a655f..2c6a3bc 100644 --- a/drivers/net/bnx2x/bnx2x_dcb.h +++ b/drivers/net/bnx2x/bnx2x_dcb.h @@ -27,22 +27,30 @@ struct bnx2x_dcbx_app_params { 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 +#define DCBX_COS_MAX_NUM_E2 DCBX_E2E3_MAX_NUM_COS +/* bnx2x currently limits numbers of supported COSes to 3 to be extended to 6 */ +#define BNX2X_MAX_COS_SUPPORT 3 +#define DCBX_COS_MAX_NUM_E3B0 BNX2X_MAX_COS_SUPPORT +#define DCBX_COS_MAX_NUM BNX2X_MAX_COS_SUPPORT struct bnx2x_dcbx_cos_params { u32 bw_tbl; u32 pri_bitmask; + /* + * strict priority: valid values are 0..5; 0 is highest priority. + * There can't be two COSes with the same priority. + */ u8 strict; +#define BNX2X_DCBX_STRICT_INVALID DCBX_COS_MAX_NUM +#define BNX2X_DCBX_STRICT_COS_HIGHEST 0 +#define BNX2X_DCBX_STRICT_COS_NEXT_LOWER_PRI(sp) ((sp) + 1) 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_cos_params cos_params[DCBX_COS_MAX_NUM]; }; struct bnx2x_dcbx_pfc_params { @@ -134,7 +142,7 @@ struct cos_entry_help_data { }; struct cos_help_data { - struct cos_entry_help_data data[E2_NUM_OF_COS]; + struct cos_entry_help_data data[DCBX_COS_MAX_NUM]; u8 num_of_cos; }; @@ -150,6 +158,8 @@ struct cos_help_data { ((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 DCBX_IS_PFC_PRI_SOME_PAUSE(bp, pg_pri) \ + (0 != DCBX_PFC_PRI_GET_PAUSE(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)\ @@ -172,7 +182,6 @@ struct pg_help_data { /* 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); void bnx2x_dcbx_set_state(struct bnx2x *bp, bool dcb_on, u32 dcbx_enabled); -- 2.7.4