From: Ajit Khaparde Date: Thu, 28 Jun 2018 20:15:32 +0000 (-0700) Subject: net/bnxt: set ring coalesce parameters for Stratus NIC X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=5c38c04f9a06bdc475f7cda7fa81b54907e42d4b;p=dpdk.git net/bnxt: set ring coalesce parameters for Stratus NIC Set ring coalesce parameters for Stratus NIC. Other skews don't necessarily need this. Signed-off-by: Ajit Khaparde --- diff --git a/drivers/net/bnxt/bnxt.h b/drivers/net/bnxt/bnxt.h index 9a70617fc8..1a746097b2 100644 --- a/drivers/net/bnxt/bnxt.h +++ b/drivers/net/bnxt/bnxt.h @@ -28,6 +28,14 @@ #define BNXT_MAX_TX_RING_DESC 4096 #define BNXT_MAX_RX_RING_DESC 8192 +#define BNXT_INT_LAT_TMR_MIN 75 +#define BNXT_INT_LAT_TMR_MAX 150 +#define BNXT_NUM_CMPL_AGGR_INT 36 +#define BNXT_CMPL_AGGR_DMA_TMR 37 +#define BNXT_NUM_CMPL_DMA_AGGR 36 +#define BNXT_CMPL_AGGR_DMA_TMR_DURING_INT 50 +#define BNXT_NUM_CMPL_DMA_AGGR_DURING_INT 12 + struct bnxt_led_info { uint8_t led_id; uint8_t led_type; @@ -209,6 +217,16 @@ struct bnxt_ptp_cfg { uint32_t tx_mapped_regs[BNXT_PTP_TX_REGS]; }; +struct bnxt_coal { + uint16_t num_cmpl_aggr_int; + uint16_t num_cmpl_dma_aggr; + uint16_t num_cmpl_dma_aggr_during_int; + uint16_t int_lat_tmr_max; + uint16_t int_lat_tmr_min; + uint16_t cmpl_aggr_dma_tmr; + uint16_t cmpl_aggr_dma_tmr_during_int; +}; + #define BNXT_HWRM_SHORT_REQ_LEN sizeof(struct hwrm_short_input) struct bnxt { void *bar0; @@ -315,6 +333,7 @@ int bnxt_link_update_op(struct rte_eth_dev *eth_dev, int wait_to_complete); int bnxt_rcv_msg_from_vf(struct bnxt *bp, uint16_t vf_id, void *msg); bool is_bnxt_supported(struct rte_eth_dev *dev); +bool bnxt_stratus_device(struct bnxt *bp); extern const struct rte_flow_ops bnxt_flow_ops; extern int bnxt_logtype_driver; diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c index 78eaf3b59e..54b92bbbe6 100644 --- a/drivers/net/bnxt/bnxt_ethdev.c +++ b/drivers/net/bnxt/bnxt_ethdev.c @@ -3074,6 +3074,17 @@ static bool bnxt_vf_pciid(uint16_t id) return false; } +bool bnxt_stratus_device(struct bnxt *bp) +{ + uint16_t id = bp->pdev->id.device_id; + + if (id == BROADCOM_DEV_ID_STRATUS_NIC || + id == BROADCOM_DEV_ID_STRATUS_NIC_VF1 || + id == BROADCOM_DEV_ID_STRATUS_NIC_VF2) + return true; + return false; +} + static int bnxt_init_board(struct rte_eth_dev *eth_dev) { struct bnxt *bp = eth_dev->data->dev_private; diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c index f441d46106..707ee62e05 100644 --- a/drivers/net/bnxt/bnxt_hwrm.c +++ b/drivers/net/bnxt/bnxt_hwrm.c @@ -3835,3 +3835,54 @@ int bnxt_vnic_rss_configure(struct bnxt *bp, struct bnxt_vnic_info *vnic) } return 0; } + +static void bnxt_hwrm_set_coal_params(struct bnxt_coal *hw_coal, + struct hwrm_ring_cmpl_ring_cfg_aggint_params_input *req) +{ + uint16_t flags; + + req->num_cmpl_aggr_int = rte_cpu_to_le_16(hw_coal->num_cmpl_aggr_int); + + /* This is a 6-bit value and must not be 0, or we'll get non stop IRQ */ + req->num_cmpl_dma_aggr = rte_cpu_to_le_16(hw_coal->num_cmpl_dma_aggr); + + /* This is a 6-bit value and must not be 0, or we'll get non stop IRQ */ + req->num_cmpl_dma_aggr_during_int = + rte_cpu_to_le_16(hw_coal->num_cmpl_dma_aggr_during_int); + + req->int_lat_tmr_max = rte_cpu_to_le_16(hw_coal->int_lat_tmr_max); + + /* min timer set to 1/2 of interrupt timer */ + req->int_lat_tmr_min = rte_cpu_to_le_16(hw_coal->int_lat_tmr_min); + + /* buf timer set to 1/4 of interrupt timer */ + req->cmpl_aggr_dma_tmr = rte_cpu_to_le_16(hw_coal->cmpl_aggr_dma_tmr); + + req->cmpl_aggr_dma_tmr_during_int = + rte_cpu_to_le_16(hw_coal->cmpl_aggr_dma_tmr_during_int); + + flags = HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS_INPUT_FLAGS_TIMER_RESET | + HWRM_RING_CMPL_RING_CFG_AGGINT_PARAMS_INPUT_FLAGS_RING_IDLE; + req->flags = rte_cpu_to_le_16(flags); +} + +int bnxt_hwrm_set_ring_coal(struct bnxt *bp, + struct bnxt_coal *coal, uint16_t ring_id) +{ + struct hwrm_ring_cmpl_ring_cfg_aggint_params_input req = {0}; + struct hwrm_ring_cmpl_ring_cfg_aggint_params_output *resp = + bp->hwrm_cmd_resp_addr; + int rc; + + /* Set ring coalesce parameters only for Stratus 100G NIC */ + if (!bnxt_stratus_device(bp)) + return 0; + + HWRM_PREP(req, RING_CMPL_RING_CFG_AGGINT_PARAMS); + bnxt_hwrm_set_coal_params(coal, &req); + req.ring_id = rte_cpu_to_le_16(ring_id); + rc = bnxt_hwrm_send_message(bp, &req, sizeof(req)); + HWRM_CHECK_RESULT(); + HWRM_UNLOCK(); + return 0; +} diff --git a/drivers/net/bnxt/bnxt_hwrm.h b/drivers/net/bnxt/bnxt_hwrm.h index 60a4ab16a0..b83aab3069 100644 --- a/drivers/net/bnxt/bnxt_hwrm.h +++ b/drivers/net/bnxt/bnxt_hwrm.h @@ -167,4 +167,6 @@ int bnxt_hwrm_flash_nvram(struct bnxt *bp, uint16_t dir_type, int bnxt_hwrm_ptp_cfg(struct bnxt *bp); int bnxt_vnic_rss_configure(struct bnxt *bp, struct bnxt_vnic_info *vnic); +int bnxt_hwrm_set_ring_coal(struct bnxt *bp, + struct bnxt_coal *coal, uint16_t ring_id); #endif diff --git a/drivers/net/bnxt/bnxt_ring.c b/drivers/net/bnxt/bnxt_ring.c index bb9f6d1c0f..81eb89d74d 100644 --- a/drivers/net/bnxt/bnxt_ring.c +++ b/drivers/net/bnxt/bnxt_ring.c @@ -258,6 +258,24 @@ int bnxt_alloc_rings(struct bnxt *bp, uint16_t qidx, return 0; } +static void bnxt_init_dflt_coal(struct bnxt_coal *coal) +{ + /* Tick values in micro seconds. + * 1 coal_buf x bufs_per_record = 1 completion record. + */ + coal->num_cmpl_aggr_int = BNXT_NUM_CMPL_AGGR_INT; + /* This is a 6-bit value and must not be 0, or we'll get non stop IRQ */ + coal->num_cmpl_dma_aggr = BNXT_NUM_CMPL_DMA_AGGR; + /* This is a 6-bit value and must not be 0, or we'll get non stop IRQ */ + coal->num_cmpl_dma_aggr_during_int = BNXT_NUM_CMPL_DMA_AGGR_DURING_INT; + coal->int_lat_tmr_max = BNXT_INT_LAT_TMR_MAX; + /* min timer set to 1/2 of interrupt timer */ + coal->int_lat_tmr_min = BNXT_INT_LAT_TMR_MIN; + /* buf timer set to 1/4 of interrupt timer */ + coal->cmpl_aggr_dma_tmr = BNXT_CMPL_AGGR_DMA_TMR; + coal->cmpl_aggr_dma_tmr_during_int = BNXT_CMPL_AGGR_DMA_TMR_DURING_INT; +} + /* ring_grp usage: * [0] = default completion ring * [1 -> +rx_cp_nr_rings] = rx_cp, rx rings @@ -265,9 +283,12 @@ int bnxt_alloc_rings(struct bnxt *bp, uint16_t qidx, */ int bnxt_alloc_hwrm_rings(struct bnxt *bp) { + struct bnxt_coal coal; unsigned int i; int rc = 0; + bnxt_init_dflt_coal(&coal); + for (i = 0; i < bp->rx_cp_nr_rings; i++) { struct bnxt_rx_queue *rxq = bp->rx_queues[i]; struct bnxt_cp_ring_info *cpr = rxq->cp_ring; @@ -291,6 +312,7 @@ int bnxt_alloc_hwrm_rings(struct bnxt *bp) cpr->cp_doorbell = (char *)bp->doorbell_base + i * 0x80; bp->grp_info[i].cp_fw_ring_id = cp_ring->fw_ring_id; B_CP_DIS_DB(cpr, cpr->cp_raw_cons); + bnxt_hwrm_set_ring_coal(bp, &coal, cp_ring->fw_ring_id); if (!i) { /* @@ -379,6 +401,7 @@ int bnxt_alloc_hwrm_rings(struct bnxt *bp) txr->tx_doorbell = (char *)bp->doorbell_base + idx * 0x80; txq->index = idx; + bnxt_hwrm_set_ring_coal(bp, &coal, cp_ring->fw_ring_id); } err_out: