From: Michael Chan Date: Thu, 19 Jun 2008 23:43:17 +0000 (-0700) Subject: bnx2: Turn on multi rx rings. X-Git-Tag: v2.6.27-rc1~969^2~275 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5e9ad9e108883503fedfac3279ac101dce00bb56;p=linux-2.6 bnx2: Turn on multi rx rings. Enable multiple rx rings if MSI-X vectors are available. We enable up to 7 rx rings. Signed-off-by: Michael Chan Signed-off-by: Benjamin Li Signed-off-by: David S. Miller --- diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c index 0a297f77a2..3b907196ca 100644 --- a/drivers/net/bnx2.c +++ b/drivers/net/bnx2.c @@ -4542,15 +4542,25 @@ bnx2_init_chip(struct bnx2 *bp) BNX2_HC_CONFIG_COLLECT_STATS; } - if (bp->flags & BNX2_FLAG_USING_MSIX) { - u32 base = ((BNX2_TX_VEC - 1) * BNX2_HC_SB_CONFIG_SIZE) + - BNX2_HC_SB_CONFIG_1; - + if (bp->irq_nvecs > 1) { REG_WR(bp, BNX2_HC_MSIX_BIT_VECTOR, BNX2_HC_MSIX_BIT_VECTOR_VAL); + val |= BNX2_HC_CONFIG_SB_ADDR_INC_128B; + } + + if (bp->flags & BNX2_FLAG_ONE_SHOT_MSI) + val |= BNX2_HC_CONFIG_ONE_SHOT; + + REG_WR(bp, BNX2_HC_CONFIG, val); + + for (i = 1; i < bp->irq_nvecs; i++) { + u32 base = ((i - 1) * BNX2_HC_SB_CONFIG_SIZE) + + BNX2_HC_SB_CONFIG_1; + REG_WR(bp, base, BNX2_HC_SB_CONFIG_1_TX_TMR_MODE | + BNX2_HC_SB_CONFIG_1_RX_TMR_MODE | BNX2_HC_SB_CONFIG_1_ONE_SHOT); REG_WR(bp, base + BNX2_HC_TX_QUICK_CONS_TRIP_OFF, @@ -4560,13 +4570,13 @@ bnx2_init_chip(struct bnx2 *bp) REG_WR(bp, base + BNX2_HC_TX_TICKS_OFF, (bp->tx_ticks_int << 16) | bp->tx_ticks); - val |= BNX2_HC_CONFIG_SB_ADDR_INC_128B; - } - - if (bp->flags & BNX2_FLAG_ONE_SHOT_MSI) - val |= BNX2_HC_CONFIG_ONE_SHOT; + REG_WR(bp, base + BNX2_HC_RX_QUICK_CONS_TRIP_OFF, + (bp->rx_quick_cons_trip_int << 16) | + bp->rx_quick_cons_trip); - REG_WR(bp, BNX2_HC_CONFIG, val); + REG_WR(bp, base + BNX2_HC_RX_TICKS_OFF, + (bp->rx_ticks_int << 16) | bp->rx_ticks); + } /* Clear internal stats counters. */ REG_WR(bp, BNX2_HC_COMMAND, BNX2_HC_COMMAND_CLR_STAT_NOW); @@ -4737,7 +4747,7 @@ bnx2_init_rx_ring(struct bnx2 *bp, int ring_num) val = (bp->rx_buf_use_size << 16) | PAGE_SIZE; bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_PG_BUF_SIZE, val); bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_RBDC_KEY, - BNX2_L2CTX_RBDC_JUMBO_KEY); + BNX2_L2CTX_RBDC_JUMBO_KEY - ring_num); val = (u64) rxr->rx_pg_desc_mapping[0] >> 32; bnx2_ctx_wr(bp, rx_cid_addr, BNX2_L2CTX_NX_PG_BDHADDR_HI, val); @@ -4787,6 +4797,7 @@ static void bnx2_init_all_rings(struct bnx2 *bp) { int i; + u32 val; bnx2_clear_ring_states(bp); @@ -4798,8 +4809,33 @@ bnx2_init_all_rings(struct bnx2 *bp) REG_WR(bp, BNX2_TSCH_TSS_CFG, ((bp->num_tx_rings - 1) << 24) | (TX_TSS_CID << 7)); + REG_WR(bp, BNX2_RLUP_RSS_CONFIG, 0); + bnx2_reg_wr_ind(bp, BNX2_RXP_SCRATCH_RSS_TBL_SZ, 0); + for (i = 0; i < bp->num_rx_rings; i++) bnx2_init_rx_ring(bp, i); + + if (bp->num_rx_rings > 1) { + u32 tbl_32; + u8 *tbl = (u8 *) &tbl_32; + + bnx2_reg_wr_ind(bp, BNX2_RXP_SCRATCH_RSS_TBL_SZ, + BNX2_RXP_SCRATCH_RSS_TBL_MAX_ENTRIES); + + for (i = 0; i < BNX2_RXP_SCRATCH_RSS_TBL_MAX_ENTRIES; i++) { + tbl[i % 4] = i % (bp->num_rx_rings - 1); + if ((i % 4) == 3) + bnx2_reg_wr_ind(bp, + BNX2_RXP_SCRATCH_RSS_TBL + i, + cpu_to_be32(tbl_32)); + } + + val = BNX2_RLUP_RSS_CONFIG_IPV4_RSS_TYPE_ALL_XI | + BNX2_RLUP_RSS_CONFIG_IPV6_RSS_TYPE_ALL_XI; + + REG_WR(bp, BNX2_RLUP_RSS_CONFIG, val); + + } } static u32 bnx2_find_max_ring(u32 ring_size, u32 max_size) @@ -5663,7 +5699,7 @@ bnx2_free_irq(struct bnx2 *bp) } static void -bnx2_enable_msix(struct bnx2 *bp) +bnx2_enable_msix(struct bnx2 *bp, int msix_vecs) { int i, rc; struct msix_entry msix_ent[BNX2_MAX_MSIX_VEC]; @@ -5685,7 +5721,7 @@ bnx2_enable_msix(struct bnx2 *bp) if (rc != 0) return; - bp->irq_nvecs = BNX2_MAX_MSIX_VEC; + bp->irq_nvecs = msix_vecs; bp->flags |= BNX2_FLAG_USING_MSIX | BNX2_FLAG_ONE_SHOT_MSI; for (i = 0; i < BNX2_MAX_MSIX_VEC; i++) bp->irq_tbl[i].vector = msix_ent[i].vector; @@ -5694,13 +5730,16 @@ bnx2_enable_msix(struct bnx2 *bp) static void bnx2_setup_int_mode(struct bnx2 *bp, int dis_msi) { + int cpus = num_online_cpus(); + int msix_vecs = min(cpus + 1, RX_MAX_RSS_RINGS); + bp->irq_tbl[0].handler = bnx2_interrupt; strcpy(bp->irq_tbl[0].name, bp->dev->name); bp->irq_nvecs = 1; bp->irq_tbl[0].vector = bp->pdev->irq; - if ((bp->flags & BNX2_FLAG_MSIX_CAP) && !dis_msi) - bnx2_enable_msix(bp); + if ((bp->flags & BNX2_FLAG_MSIX_CAP) && !dis_msi && cpus > 1) + bnx2_enable_msix(bp, msix_vecs); if ((bp->flags & BNX2_FLAG_MSI_CAP) && !dis_msi && !(bp->flags & BNX2_FLAG_USING_MSIX)) { @@ -5716,7 +5755,7 @@ bnx2_setup_int_mode(struct bnx2 *bp, int dis_msi) } } bp->num_tx_rings = 1; - bp->num_rx_rings = 1; + bp->num_rx_rings = bp->irq_nvecs; } /* Called with rtnl_lock */ diff --git a/drivers/net/bnx2.h b/drivers/net/bnx2.h index 362bef6ff5..efa0ca9a8f 100644 --- a/drivers/net/bnx2.h +++ b/drivers/net/bnx2.h @@ -4157,6 +4157,23 @@ struct l2_fhdr { #define BNX2_RPM_ACPI_PATTERN_CRC7_PATTERN_CRC7 (0xffffffffL<<0) +/* + * rlup_reg definition + * offset: 0x2000 + */ +#define BNX2_RLUP_RSS_CONFIG 0x0000201c +#define BNX2_RLUP_RSS_CONFIG_IPV4_RSS_TYPE_XI (0x3L<<0) +#define BNX2_RLUP_RSS_CONFIG_IPV4_RSS_TYPE_OFF_XI (0L<<0) +#define BNX2_RLUP_RSS_CONFIG_IPV4_RSS_TYPE_ALL_XI (1L<<0) +#define BNX2_RLUP_RSS_CONFIG_IPV4_RSS_TYPE_IP_ONLY_XI (2L<<0) +#define BNX2_RLUP_RSS_CONFIG_IPV4_RSS_TYPE_RES_XI (3L<<0) +#define BNX2_RLUP_RSS_CONFIG_IPV6_RSS_TYPE_XI (0x3L<<2) +#define BNX2_RLUP_RSS_CONFIG_IPV6_RSS_TYPE_OFF_XI (0L<<2) +#define BNX2_RLUP_RSS_CONFIG_IPV6_RSS_TYPE_ALL_XI (1L<<2) +#define BNX2_RLUP_RSS_CONFIG_IPV6_RSS_TYPE_IP_ONLY_XI (2L<<2) +#define BNX2_RLUP_RSS_CONFIG_IPV6_RSS_TYPE_RES_XI (3L<<2) + + /* * rbuf_reg definition * offset: 0x200000 @@ -5528,6 +5545,9 @@ struct l2_fhdr { #define BNX2_HC_TX_QUICK_CONS_TRIP_OFF (BNX2_HC_TX_QUICK_CONS_TRIP_1 - \ BNX2_HC_SB_CONFIG_1) #define BNX2_HC_TX_TICKS_OFF (BNX2_HC_TX_TICKS_1 - BNX2_HC_SB_CONFIG_1) +#define BNX2_HC_RX_QUICK_CONS_TRIP_OFF (BNX2_HC_RX_QUICK_CONS_TRIP_1 - \ + BNX2_HC_SB_CONFIG_1) +#define BNX2_HC_RX_TICKS_OFF (BNX2_HC_RX_TICKS_1 - BNX2_HC_SB_CONFIG_1) /* @@ -5856,6 +5876,9 @@ struct l2_fhdr { #define BNX2_RXP_FTQ_CTL_CUR_DEPTH (0x3ffL<<22) #define BNX2_RXP_SCRATCH 0x000e0000 +#define BNX2_RXP_SCRATCH_RSS_TBL_SZ 0x000e0038 +#define BNX2_RXP_SCRATCH_RSS_TBL 0x000e003c +#define BNX2_RXP_SCRATCH_RSS_TBL_MAX_ENTRIES 128 /* @@ -6480,6 +6503,7 @@ struct l2_fhdr { #define TX_TSS_CID 32 #define RX_CID 0 #define RX_RSS_CID 4 +#define RX_MAX_RSS_RINGS 7 #define MB_TX_CID_ADDR MB_GET_CID_ADDR(TX_CID) #define MB_RX_CID_ADDR MB_GET_CID_ADDR(RX_CID) @@ -6558,7 +6582,7 @@ struct flash_spec { }; #define BNX2_MAX_MSIX_HW_VEC 9 -#define BNX2_MAX_MSIX_VEC 2 +#define BNX2_MAX_MSIX_VEC 9 #define BNX2_BASE_VEC 0 #define BNX2_TX_VEC 1 #define BNX2_TX_INT_NUM (BNX2_TX_VEC << BNX2_PCICFG_INT_ACK_CMD_INT_NUM_SHIFT)