From 0a256e4a548b849be5c13f5c18046f3910584245 Mon Sep 17 00:00:00 2001 From: Ajit Khaparde Date: Thu, 28 Jun 2018 13:15:48 -0700 Subject: [PATCH] net/bnxt: fix Rx ring count limitation Fixed size of fw_grp_ids in VNIC is limiting the number of Rx rings being created. With this patch we are allocating fw_grp_ids dynamically, allowing us to get over this artificial limit. Fixes: 9738793f28ec ("net/bnxt: add VNIC functions and structs") Cc: stable@dpdk.org Signed-off-by: Ajit Khaparde --- drivers/net/bnxt/bnxt_ethdev.c | 11 +++++++++++ drivers/net/bnxt/bnxt_hwrm.c | 5 ++++- drivers/net/bnxt/bnxt_vnic.c | 5 +---- drivers/net/bnxt/bnxt_vnic.h | 6 +----- 4 files changed, 17 insertions(+), 10 deletions(-) diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c index 5701290e1e..436d53eb03 100644 --- a/drivers/net/bnxt/bnxt_ethdev.c +++ b/drivers/net/bnxt/bnxt_ethdev.c @@ -251,6 +251,17 @@ static int bnxt_init_chip(struct bnxt *bp) for (i = 0; i < bp->nr_vnics; i++) { struct rte_eth_conf *dev_conf = &bp->eth_dev->data->dev_conf; struct bnxt_vnic_info *vnic = &bp->vnic_info[i]; + uint32_t size = sizeof(*vnic->fw_grp_ids) * bp->max_ring_grps; + + vnic->fw_grp_ids = rte_zmalloc("vnic_fw_grp_ids", size, 0); + if (!vnic->fw_grp_ids) { + PMD_DRV_LOG(ERR, + "Failed to alloc %d bytes for group ids\n", + size); + rc = -ENOMEM; + goto err_out; + } + memset(vnic->fw_grp_ids, -1, size); rc = bnxt_hwrm_vnic_alloc(bp, vnic); if (rc) { diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c index de04fe863d..37aefbdc9f 100644 --- a/drivers/net/bnxt/bnxt_hwrm.c +++ b/drivers/net/bnxt/bnxt_hwrm.c @@ -1319,8 +1319,9 @@ int bnxt_hwrm_vnic_alloc(struct bnxt *bp, struct bnxt_vnic_info *vnic) /* map ring groups to this vnic */ PMD_DRV_LOG(DEBUG, "Alloc VNIC. Start %x, End %x\n", vnic->start_grp_id, vnic->end_grp_id); - for (i = vnic->start_grp_id, j = 0; i <= vnic->end_grp_id; i++, j++) + for (i = vnic->start_grp_id, j = 0; i < vnic->end_grp_id; i++, j++) vnic->fw_grp_ids[j] = bp->grp_info[i].fw_grp_id; + vnic->dflt_ring_grp = bp->grp_info[vnic->start_grp_id].fw_grp_id; vnic->rss_rule = (uint16_t)HWRM_NA_SIGNATURE; vnic->cos_rule = (uint16_t)HWRM_NA_SIGNATURE; @@ -2106,6 +2107,8 @@ void bnxt_free_all_hwrm_resources(struct bnxt *bp) bnxt_hwrm_vnic_tpa_cfg(bp, vnic, false); bnxt_hwrm_vnic_free(bp, vnic); + + rte_free(vnic->fw_grp_ids); } /* Ring resources */ bnxt_free_all_hwrm_rings(bp); diff --git a/drivers/net/bnxt/bnxt_vnic.c b/drivers/net/bnxt/bnxt_vnic.c index 19d06af55b..c0577cd76d 100644 --- a/drivers/net/bnxt/bnxt_vnic.c +++ b/drivers/net/bnxt/bnxt_vnic.c @@ -39,7 +39,7 @@ void bnxt_init_vnics(struct bnxt *bp) { struct bnxt_vnic_info *vnic; uint16_t max_vnics; - int i, j; + int i; max_vnics = bp->max_vnics; STAILQ_INIT(&bp->free_vnic_list); @@ -52,9 +52,6 @@ void bnxt_init_vnics(struct bnxt *bp) vnic->hash_mode = HWRM_VNIC_RSS_CFG_INPUT_HASH_MODE_FLAGS_DEFAULT; - for (j = 0; j < MAX_QUEUES_PER_VNIC; j++) - vnic->fw_grp_ids[j] = (uint16_t)HWRM_NA_SIGNATURE; - prandom_bytes(vnic->rss_hash_key, HW_HASH_KEY_SIZE); STAILQ_INIT(&vnic->filter); STAILQ_INIT(&vnic->flow_list); diff --git a/drivers/net/bnxt/bnxt_vnic.h b/drivers/net/bnxt/bnxt_vnic.h index c521d7e5af..9029f78c33 100644 --- a/drivers/net/bnxt/bnxt_vnic.h +++ b/drivers/net/bnxt/bnxt_vnic.h @@ -15,13 +15,9 @@ struct bnxt_vnic_info { uint16_t fw_vnic_id; /* returned by Chimp during alloc */ uint16_t rss_rule; -#define MAX_NUM_TRAFFIC_CLASSES 8 -#define MAX_NUM_RSS_QUEUES_PER_VNIC 16 -#define MAX_QUEUES_PER_VNIC (MAX_NUM_RSS_QUEUES_PER_VNIC + \ - MAX_NUM_TRAFFIC_CLASSES) uint16_t start_grp_id; uint16_t end_grp_id; - uint16_t fw_grp_ids[MAX_QUEUES_PER_VNIC]; + uint16_t *fw_grp_ids; uint16_t dflt_ring_grp; uint16_t mru; uint16_t hash_type; -- 2.20.1