From: Mohammad Shuab Siddique <[email protected]> Add multi-doorbell support to spread doorbell accesses across multiple doorbell pages for improved performance on P5/P7 chips.
Detect capability via HWRM_FUNC_QCAPS Round-robin DPI assignment for NQ rings per device TX rings inherit DPI from parent NQ RX/CQ rings use privileged DPI 0 P7: DPI 0=legacy, DPI 1=push, DPI 2+ for multi-DB P5: DPI 0=legacy, DPI 1+ for multi-DB Cc: [email protected] Signed-off-by: Mohammad Shuab Siddique <[email protected]> --- drivers/net/bnxt/bnxt.h | 13 +++++ drivers/net/bnxt/bnxt_cpr.h | 1 + drivers/net/bnxt/bnxt_hwrm.c | 51 +++++++++++++++++-- drivers/net/bnxt/bnxt_hwrm.h | 2 +- drivers/net/bnxt/bnxt_mpc.c | 4 +- drivers/net/bnxt/bnxt_ring.c | 70 ++++++++++++++++++-------- drivers/net/bnxt/bnxt_ring.h | 3 +- drivers/net/bnxt/bnxt_rxr.h | 1 + drivers/net/bnxt/bnxt_txr.h | 1 + drivers/net/bnxt/hsi_struct_def_dpdk.h | 30 +++++++++++ 10 files changed, 147 insertions(+), 29 deletions(-) diff --git a/drivers/net/bnxt/bnxt.h b/drivers/net/bnxt/bnxt.h index 83ae151066..53a97eb095 100644 --- a/drivers/net/bnxt/bnxt.h +++ b/drivers/net/bnxt/bnxt.h @@ -433,6 +433,13 @@ struct bnxt_coal { #define DB_PF_OFFSET 0x10000 #define DB_VF_OFFSET 0x4000 +#define BNXT_PRIVILEGED_DPI 0 +#define BNXT_RESERVED_DPI_ONE 1 +#define BNXT_RESERVED_DPI_TWO 2 +#define BNXT_DEFAULT_DB_PAGE_SIZE 4096 + +#define BNXT_KB_TO_BYTES(kb) ((kb) * 1024) + #define BNXT_RSS_TBL_SIZE_P5 512U #define BNXT_RSS_ENTRIES_PER_CTX_P5 64 #define BNXT_MAX_RSS_CTXTS_P5 \ @@ -873,6 +880,7 @@ struct bnxt { #define BNXT_FW_CAP_RX_ALL_PKT_TS BIT(11) #define BNXT_FW_CAP_BACKING_STORE_V2 BIT(12) #define BNXT_FW_CAP_RX_RATE_PROFILE BIT(17) +#define BNXT_FW_CAP_MULTI_DB BIT(18) #define BNXT_FW_BACKING_STORE_V2_EN(bp) \ ((bp)->fw_cap & BNXT_FW_CAP_BACKING_STORE_V2) #define BNXT_FW_BACKING_STORE_V1_EN(bp) \ @@ -1079,6 +1087,11 @@ struct bnxt { struct rte_eth_rss_conf rss_conf; /* RSS configuration. */ uint16_t tunnel_disable_flag; /* tunnel stateless offloads status */ uint8_t chip_rev; + uint16_t l2_db_multi_page_size_kb; /* Multi-L2 DB BAR size in KB */ + uint16_t db_page_size; /* Doorbell page size (typically 4KB) */ + uint8_t nq_dpi_start; /* Starting DPI for NQ rings */ + uint8_t nq_dpi_count; /* Number of DPI pages for NQ */ + uint8_t nq_dpi_counter; /* Round-robin counter for NQ DPI */ }; static diff --git a/drivers/net/bnxt/bnxt_cpr.h b/drivers/net/bnxt/bnxt_cpr.h index 94f449e8b5..858ee15c47 100644 --- a/drivers/net/bnxt/bnxt_cpr.h +++ b/drivers/net/bnxt/bnxt_cpr.h @@ -89,6 +89,7 @@ struct bnxt_cp_ring_info { struct bnxt_ring *cp_ring_struct; bool valid; uint32_t epoch; + uint8_t dpi; }; #define RX_CMP_L2_ERRORS \ diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c index 0cef22b5ec..7c58727e59 100644 --- a/drivers/net/bnxt/bnxt_hwrm.c +++ b/drivers/net/bnxt/bnxt_hwrm.c @@ -1254,6 +1254,9 @@ static int __bnxt_hwrm_func_qcaps(struct bnxt *bp) if (flags_ext3 & HWRM_FUNC_QCAPS_OUTPUT_FLAGS_EXT3_RX_RATE_PROFILE_SEL_SUPPORTED) bp->fw_cap |= BNXT_FW_CAP_RX_RATE_PROFILE; + if (flags_ext3 & HWRM_FUNC_QCAPS_OUTPUT_FLAGS_EXT3_MULTI_L2_DB_SUPPORTED) + bp->fw_cap |= BNXT_FW_CAP_MULTI_DB; + /* This block should be kept at the end of this function because it * sends another hwrm msg. */ @@ -2176,7 +2179,7 @@ int bnxt_hwrm_ring_alloc(struct bnxt *bp, struct bnxt_ring *ring, uint32_t ring_type, uint32_t map_index, uint32_t stats_ctx_id, uint32_t cmpl_ring_id, - uint16_t tx_cosq_id) + uint16_t tx_cosq_id, uint16_t dpi) { int rc = 0; uint32_t enables = 0; @@ -2280,6 +2283,11 @@ int bnxt_hwrm_ring_alloc(struct bnxt *bp, HWRM_UNLOCK(); return -EINVAL; } + + if (bp->fw_cap & BNXT_FW_CAP_MULTI_DB) { + req.dpi = rte_cpu_to_le_16(dpi); + enables |= HWRM_RING_ALLOC_INPUT_ENABLES_DPI_VALID; + } req.enables = rte_cpu_to_le_32(enables); rc = bnxt_hwrm_send_message(bp, &req, sizeof(req), BNXT_USE_CHIMP_MB); @@ -4195,12 +4203,15 @@ int bnxt_set_hwrm_link_config(struct bnxt *bp, bool link_up) int bnxt_hwrm_func_qcfg(struct bnxt *bp, uint16_t *mtu) { - struct hwrm_func_qcfg_input req = {0}; struct hwrm_func_qcfg_output *resp = bp->hwrm_cmd_resp_addr; + struct hwrm_func_qcfg_input req = {0}; + uint16_t l2_db_multi_kb; + uint16_t total_pages; + uint16_t svif_info; uint16_t flags; int rc = 0; + bp->func_svif = BNXT_SVIF_INVALID; - uint16_t svif_info; HWRM_PREP(&req, HWRM_FUNC_QCFG, BNXT_USE_CHIMP_MB); req.fid = rte_cpu_to_le_16(0xffff); @@ -4246,9 +4257,39 @@ int bnxt_hwrm_func_qcfg(struct bnxt *bp, uint16_t *mtu) bp->flags &= ~BNXT_FLAG_NPAR_PF; break; } - bp->legacy_db_size = - rte_le_to_cpu_16(resp->legacy_l2_db_size_kb) * 1024; + BNXT_KB_TO_BYTES(rte_le_to_cpu_16(resp->legacy_l2_db_size_kb)); + + /* Configure multi-doorbell if supported */ + if (bp->fw_cap & BNXT_FW_CAP_MULTI_DB) { + l2_db_multi_kb = rte_le_to_cpu_16(resp->l2_db_multi_page_size_kb); + bp->l2_db_multi_page_size_kb = l2_db_multi_kb ? l2_db_multi_kb : + rte_le_to_cpu_16(resp->l2_doorbell_bar_size_kb); + + if (bp->l2_db_multi_page_size_kb > 0) { + bp->db_page_size = BNXT_DEFAULT_DB_PAGE_SIZE; + total_pages = BNXT_KB_TO_BYTES(bp->l2_db_multi_page_size_kb) / + bp->db_page_size; + + /* P7: DPI 0=legacy, DPI 1=push reserved; P5: DPI 0=legacy */ + bp->nq_dpi_start = BNXT_CHIP_P7(bp) ? + BNXT_RESERVED_DPI_TWO : BNXT_RESERVED_DPI_ONE; + bp->nq_dpi_count = (total_pages > bp->nq_dpi_start) ? + (total_pages - bp->nq_dpi_start) : 0; + bp->nq_dpi_counter = 0; + PMD_DRV_LOG_LINE(INFO, + "Multi-doorbell: %u KB, " + "DPI range %u-%u (%u pages)", + bp->l2_db_multi_page_size_kb, + bp->nq_dpi_start, + bp->nq_dpi_start + bp->nq_dpi_count - 1, + bp->nq_dpi_count); + } else { + PMD_DRV_LOG_LINE(INFO, + "Multi-doorbell supported " + "but no pages allocated"); + } + } HWRM_UNLOCK(); diff --git a/drivers/net/bnxt/bnxt_hwrm.h b/drivers/net/bnxt/bnxt_hwrm.h index ecb6335b3d..fc56223ab4 100644 --- a/drivers/net/bnxt/bnxt_hwrm.h +++ b/drivers/net/bnxt/bnxt_hwrm.h @@ -221,7 +221,7 @@ int bnxt_hwrm_ring_alloc(struct bnxt *bp, struct bnxt_ring *ring, uint32_t ring_type, uint32_t map_index, uint32_t stats_ctx_id, uint32_t cmpl_ring_id, - uint16_t tx_cosq_id); + uint16_t tx_cosq_id, uint16_t dpi); int bnxt_hwrm_ring_free(struct bnxt *bp, struct bnxt_ring *ring, uint32_t ring_type, uint16_t cp_ring_id); diff --git a/drivers/net/bnxt/bnxt_mpc.c b/drivers/net/bnxt/bnxt_mpc.c index 259066fa61..d77f9dd308 100644 --- a/drivers/net/bnxt/bnxt_mpc.c +++ b/drivers/net/bnxt/bnxt_mpc.c @@ -502,7 +502,7 @@ static int bnxt_mpc_ring_alloc_one(struct bnxt *bp, enum bnxt_mpc_chnl chnl_id) map_index, cpr->hw_stats_ctx_id, cp_ring->fw_ring_id, - MPC_HW_COS_ID); + MPC_HW_COS_ID, BNXT_PRIVILEGED_DPI); if (rc) { PMD_DRV_LOG_LINE(ERR, "mpc ring %d tx ring alloc failed rc:%d!", chnl_id, rc); @@ -510,7 +510,7 @@ static int bnxt_mpc_ring_alloc_one(struct bnxt *bp, enum bnxt_mpc_chnl chnl_id) } bnxt_set_db(bp, &mpr->db, HWRM_RING_ALLOC_INPUT_RING_TYPE_TX, chnl_id, - ring->fw_ring_id, ring->ring_mask); + ring->fw_ring_id, ring->ring_mask, BNXT_PRIVILEGED_DPI); bnxt_hwrm_set_ring_coal(bp, &coal, cp_ring->fw_ring_id); diff --git a/drivers/net/bnxt/bnxt_ring.c b/drivers/net/bnxt/bnxt_ring.c index b6d411a931..ccca779b97 100644 --- a/drivers/net/bnxt/bnxt_ring.c +++ b/drivers/net/bnxt/bnxt_ring.c @@ -353,8 +353,11 @@ void bnxt_set_db(struct bnxt *bp, uint32_t ring_type, uint32_t map_idx, uint32_t fid, - uint32_t ring_mask) + uint32_t ring_mask, + uint16_t dpi) { + uint64_t dpi_offset; + if (BNXT_CHIP_P5_P7(bp)) { int db_offset = DB_PF_OFFSET; switch (ring_type) { @@ -379,8 +382,14 @@ void bnxt_set_db(struct bnxt *bp, } else if (BNXT_VF(bp)) { db_offset = DB_VF_OFFSET; } - db->doorbell = (char *)bp->doorbell_base + db_offset; + + if (bp->fw_cap & BNXT_FW_CAP_MULTI_DB && + dpi != BNXT_PRIVILEGED_DPI) { + dpi_offset = (dpi - bp->nq_dpi_start) * + bp->db_page_size; + db->doorbell = (char *)db->doorbell + dpi_offset; + } db->db_key64 |= (uint64_t)fid << DBR_XID_SFT; db->db_64 = true; } else { @@ -404,32 +413,33 @@ void bnxt_set_db(struct bnxt *bp, int bnxt_alloc_cmpl_ring(struct bnxt *bp, int queue_index, struct bnxt_cp_ring_info *cpr) { - struct bnxt_ring *cp_ring = cpr->cp_ring_struct; - uint32_t nq_ring_id = HWRM_NA_SIGNATURE; int cp_ring_index = queue_index + BNXT_RX_VEC_START; struct bnxt_cp_ring_info *nqr = bp->rxtx_nq_ring; + struct bnxt_ring *cp_ring = cpr->cp_ring_struct; + uint32_t nq_ring_id = HWRM_NA_SIGNATURE; + uint8_t dpi = BNXT_PRIVILEGED_DPI; uint8_t ring_type; int rc = 0; ring_type = HWRM_RING_ALLOC_INPUT_RING_TYPE_L2_CMPL; if (BNXT_HAS_NQ(bp)) { - if (nqr) { - nq_ring_id = nqr->cp_ring_struct->fw_ring_id; - } else { + if (!nqr) { PMD_DRV_LOG_LINE(ERR, "NQ ring is NULL"); return -EINVAL; } + nq_ring_id = nqr->cp_ring_struct->fw_ring_id; } + cpr->dpi = dpi; rc = bnxt_hwrm_ring_alloc(bp, cp_ring, ring_type, cp_ring_index, - HWRM_NA_SIGNATURE, nq_ring_id, 0); + HWRM_NA_SIGNATURE, nq_ring_id, 0, dpi); if (rc) return rc; cpr->cp_raw_cons = 0; bnxt_set_db(bp, &cpr->cp_db, ring_type, cp_ring_index, - cp_ring->fw_ring_id, cp_ring->ring_mask); + cp_ring->fw_ring_id, cp_ring->ring_mask, dpi); bnxt_db_cq(cpr); return 0; @@ -437,10 +447,12 @@ int bnxt_alloc_cmpl_ring(struct bnxt *bp, int queue_index, int bnxt_alloc_rxtx_nq_ring(struct bnxt *bp) { + int ring_index = BNXT_NUM_ASYNC_CPR(bp); + uint8_t dpi = BNXT_PRIVILEGED_DPI; struct bnxt_cp_ring_info *nqr; struct bnxt_ring *ring; - int ring_index = BNXT_NUM_ASYNC_CPR(bp); uint8_t ring_type; + uint8_t offset; int rc = 0; if (!BNXT_HAS_NQ(bp) || bp->rxtx_nq_ring) @@ -481,8 +493,18 @@ int bnxt_alloc_rxtx_nq_ring(struct bnxt *bp) ring_type = HWRM_RING_ALLOC_INPUT_RING_TYPE_NQ; + /* Assign DPI using round-robin if multi-doorbell is enabled */ + if (bp->fw_cap & BNXT_FW_CAP_MULTI_DB && bp->nq_dpi_count > 0) { + offset = bp->nq_dpi_counter % bp->nq_dpi_count; + dpi = bp->nq_dpi_start + offset; + bp->nq_dpi_counter++; + PMD_DRV_LOG_LINE(DEBUG, "NQ ring assigned DPI %u", dpi); + } + + nqr->dpi = dpi; + rc = bnxt_hwrm_ring_alloc(bp, ring, ring_type, ring_index, - HWRM_NA_SIGNATURE, HWRM_NA_SIGNATURE, 0); + HWRM_NA_SIGNATURE, HWRM_NA_SIGNATURE, 0, dpi); if (rc) { rte_free(ring); rte_free(nqr); @@ -490,7 +512,7 @@ int bnxt_alloc_rxtx_nq_ring(struct bnxt *bp) } bnxt_set_db(bp, &nqr->cp_db, ring_type, ring_index, - ring->fw_ring_id, ring->ring_mask); + ring->fw_ring_id, ring->ring_mask, dpi); bnxt_db_nq(nqr); bp->rxtx_nq_ring = nqr; @@ -523,13 +545,16 @@ static int bnxt_alloc_rx_ring(struct bnxt *bp, int queue_index) struct bnxt_rx_ring_info *rxr = rxq->rx_ring; struct bnxt_ring *ring = rxr->rx_ring_struct; uint8_t ring_type; + uint16_t dpi; int rc = 0; ring_type = HWRM_RING_ALLOC_INPUT_RING_TYPE_RX; + dpi = BNXT_PRIVILEGED_DPI; + rxr->dpi = dpi; rc = bnxt_hwrm_ring_alloc(bp, ring, ring_type, queue_index, cpr->hw_stats_ctx_id, - cp_ring->fw_ring_id, 0); + cp_ring->fw_ring_id, 0, dpi); if (rc) return rc; @@ -537,7 +562,7 @@ static int bnxt_alloc_rx_ring(struct bnxt *bp, int queue_index) if (BNXT_HAS_RING_GRPS(bp)) bp->grp_info[queue_index].rx_fw_ring_id = ring->fw_ring_id; bnxt_set_db(bp, &rxr->rx_db, ring_type, queue_index, ring->fw_ring_id, - ring->ring_mask); + ring->ring_mask, dpi); bnxt_db_write(&rxr->rx_db, rxr->rx_raw_prod); return 0; @@ -568,7 +593,8 @@ static int bnxt_alloc_rx_agg_ring(struct bnxt *bp, int queue_index) } rc = bnxt_hwrm_ring_alloc(bp, ring, ring_type, map_idx, - hw_stats_ctx_id, cp_ring->fw_ring_id, 0); + hw_stats_ctx_id, cp_ring->fw_ring_id, 0, + BNXT_PRIVILEGED_DPI); if (rc) return rc; @@ -578,7 +604,7 @@ static int bnxt_alloc_rx_agg_ring(struct bnxt *bp, int queue_index) if (BNXT_HAS_RING_GRPS(bp)) bp->grp_info[queue_index].ag_fw_ring_id = ring->fw_ring_id; bnxt_set_db(bp, &rxr->ag_db, ring_type, map_idx, ring->fw_ring_id, - ring->ring_mask); + ring->ring_mask, BNXT_PRIVILEGED_DPI); bnxt_db_write(&rxr->ag_db, rxr->ag_raw_prod); return 0; @@ -796,14 +822,16 @@ int bnxt_alloc_async_cp_ring(struct bnxt *bp) ring_type = HWRM_RING_ALLOC_INPUT_RING_TYPE_L2_CMPL; rc = bnxt_hwrm_ring_alloc(bp, cp_ring, ring_type, 0, - HWRM_NA_SIGNATURE, HWRM_NA_SIGNATURE, 0); + HWRM_NA_SIGNATURE, HWRM_NA_SIGNATURE, 0, + BNXT_PRIVILEGED_DPI); if (rc) return rc; cpr->cp_raw_cons = 0; + cpr->dpi = BNXT_PRIVILEGED_DPI; bnxt_set_db(bp, &cpr->cp_db, ring_type, 0, - cp_ring->fw_ring_id, cp_ring->ring_mask); + cp_ring->fw_ring_id, cp_ring->ring_mask, BNXT_PRIVILEGED_DPI); if (BNXT_HAS_NQ(bp)) bnxt_db_nq(cpr); @@ -900,17 +928,19 @@ int bnxt_alloc_hwrm_tx_ring(struct bnxt *bp, int queue_index) else tx_cosq_id = bp->tx_cosq_id[0]; + /* TX ring inherits DPI from parent NQ */ + txr->dpi = bp->rxtx_nq_ring ? bp->rxtx_nq_ring->dpi : BNXT_PRIVILEGED_DPI; rc = bnxt_hwrm_ring_alloc(bp, ring, HWRM_RING_ALLOC_INPUT_RING_TYPE_TX, queue_index, cpr->hw_stats_ctx_id, cp_ring->fw_ring_id, - tx_cosq_id); + tx_cosq_id, txr->dpi); if (rc) goto err_out; bnxt_set_db(bp, &txr->tx_db, HWRM_RING_ALLOC_INPUT_RING_TYPE_TX, queue_index, ring->fw_ring_id, - ring->ring_mask); + ring->ring_mask, txr->dpi); txq->index = idx; return rc; diff --git a/drivers/net/bnxt/bnxt_ring.h b/drivers/net/bnxt/bnxt_ring.h index 3e2bd634a8..496c3e111f 100644 --- a/drivers/net/bnxt/bnxt_ring.h +++ b/drivers/net/bnxt/bnxt_ring.h @@ -89,7 +89,8 @@ void bnxt_set_db(struct bnxt *bp, uint32_t ring_type, uint32_t map_idx, uint32_t fid, - uint32_t ring_mask); + uint32_t ring_mask, + uint16_t dpi); static inline void bnxt_db_write(struct bnxt_db_info *db, uint32_t idx) { diff --git a/drivers/net/bnxt/bnxt_rxr.h b/drivers/net/bnxt/bnxt_rxr.h index 7357ca4427..82d6b86fa5 100644 --- a/drivers/net/bnxt/bnxt_rxr.h +++ b/drivers/net/bnxt/bnxt_rxr.h @@ -142,6 +142,7 @@ struct bnxt_rx_ring_info { uint32_t ol_flags_table[BNXT_OL_FLAGS_TBL_DIM]; uint32_t ol_flags_err_table[BNXT_OL_FLAGS_ERR_TBL_DIM]; + uint8_t dpi; /* Doorbell page index for multi-doorbell support */ }; uint16_t bnxt_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, diff --git a/drivers/net/bnxt/bnxt_txr.h b/drivers/net/bnxt/bnxt_txr.h index 09078d545d..fd92a242c3 100644 --- a/drivers/net/bnxt/bnxt_txr.h +++ b/drivers/net/bnxt/bnxt_txr.h @@ -26,6 +26,7 @@ struct bnxt_tx_ring_info { unsigned short *nr_bds; struct bnxt_ring *tx_ring_struct; + uint8_t dpi; /* Doorbell page index for multi-doorbell support */ }; static inline uint32_t bnxt_tx_bds_in_hw(struct bnxt_tx_queue *txq) diff --git a/drivers/net/bnxt/hsi_struct_def_dpdk.h b/drivers/net/bnxt/hsi_struct_def_dpdk.h index 06c61cba8f..26d5e9ca78 100644 --- a/drivers/net/bnxt/hsi_struct_def_dpdk.h +++ b/drivers/net/bnxt/hsi_struct_def_dpdk.h @@ -15744,6 +15744,15 @@ struct __rte_packed_begin hwrm_func_qcaps_output { */ #define HWRM_FUNC_QCAPS_OUTPUT_FLAGS_EXT3_MIRROR_ON_ROCE_SUPPORTED \ UINT32_C(0x20) + /* + * When this bit is '1', it indicates that, when rx/tx/cq/nq l2 + * rings are allocated, each ring can be associated with a + * non-common doorbell page index. When '0', a common doorbell + * page is used for all rings on a PF. This bit is only set on a + * PF. + */ + #define HWRM_FUNC_QCAPS_OUTPUT_FLAGS_EXT3_MULTI_L2_DB_SUPPORTED \ + UINT32_C(0x200) /* * The number of VFs that can be used for RoCE on the function. If less * than max_vfs, roce vfs will be assigned to the first VF of the @@ -16268,6 +16277,12 @@ struct __rte_packed_begin hwrm_func_qcfg_output { * of the doorbell BAR between L2 and RoCE is required. */ uint16_t l2_doorbell_bar_size_kb; + /* + * The size of the doorbell BAR in KBytes reserved for multi-L2 + * doorbell pages. This area is a subset of l2_doorbell_bar_size_kb, + * which is size of the total doorbell BAR space reserved for L2. + */ + uint16_t l2_db_multi_page_size_kb; /* * A bitmask indicating the active endpoints. Each bit represents a * specific endpoint, with bit 0 indicating EP 0 and bit 3 indicating @@ -45464,6 +45479,13 @@ struct __rte_packed_begin hwrm_ring_alloc_input { */ #define HWRM_RING_ALLOC_INPUT_ENABLES_RX_RATE_PROFILE_VALID \ UINT32_C(0x1000) + /* + * This bit must be '1' for the dpi field to be configured. + * This should only be used when 'multi_l2_db_supported' + * bit is set in flags_ext3 field of FUNC_QCAPS response. + */ + #define HWRM_RING_ALLOC_INPUT_ENABLES_DPI_VALID \ + UINT32_C(0x2000) /* Ring Type. */ uint8_t ring_type; /* L2 Completion Ring (CR) */ @@ -45831,6 +45853,14 @@ struct __rte_packed_begin hwrm_ring_alloc_input { * record. */ uint64_t cq_handle; + /* + * The "doorbell page index" is specified when allocating a l2 ring. + * It is applicable for rx/tx/completion/nq rings, and should only be + * used when 'multi_l2_db_supported' bit is set in flags_ext3 field of + * FUNC_QCAPS response. + */ + uint16_t dpi; + uint16_t unused_5[3]; } __rte_packed_end; /* hwrm_ring_alloc_output (size:128b/16B) */ -- 2.47.3
