[PATCH 3/3] net/bnxt: set max VFs count for P7

[Ajit Khaparde]

The number of max VFs per PF is 128 for P7 devices.
Cap the vnic hash table creation if the number of max VNICs
is less than 8.

Signed-off-by: Kishore Padmanabha <kishore.padmanabha at broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
---
 drivers/net/bnxt/bnxt.h      | 1 +
 drivers/net/bnxt/bnxt_vnic.c | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/drivers/net/bnxt/bnxt.h b/drivers/net/bnxt/bnxt.h
index 0402de3eb9..b8b0ecc7e7 100644
--- a/drivers/net/bnxt/bnxt.h
+++ b/drivers/net/bnxt/bnxt.h
@@ -260,6 +260,7 @@ struct bnxt_pf_info {
 #define BNXT_MAX_VFS(bp)	((bp)->pf->max_vfs)
 #define BNXT_MAX_VF_REPS_P4     64
 #define BNXT_MAX_VF_REPS_P5     256
+#define BNXT_MAX_VF_REPS_P7     128
 #define BNXT_MAX_VF_REPS(bp) \
 				(BNXT_CHIP_P5(bp) ? BNXT_MAX_VF_REPS_P5 : \
 				BNXT_MAX_VF_REPS_P4)
diff --git a/drivers/net/bnxt/bnxt_vnic.c b/drivers/net/bnxt/bnxt_vnic.c
index 7b028f2ee5..4b5ac84d70 100644
--- a/drivers/net/bnxt/bnxt_vnic.c
+++ b/drivers/net/bnxt/bnxt_vnic.c
@@ -978,6 +978,12 @@ int32_t bnxt_vnic_queue_db_init(struct bnxt *bp)
 	hash_tbl_params.name = hash_tbl_name;
 	hash_tbl_params.entries = (bp->max_vnics > BNXT_VNIC_MAX_SUPPORTED_ID) ?
 		BNXT_VNIC_MAX_SUPPORTED_ID : bp->max_vnics;
+
+	/* if the number of max vnics is less than bucket size */
+	/* then let the max entries size be the least value */
+	if (hash_tbl_params.entries <= RTE_HASH_BUCKET_ENTRIES)
+		hash_tbl_params.entries = RTE_HASH_BUCKET_ENTRIES;
+
 	hash_tbl_params.key_len = BNXT_VNIC_MAX_QUEUE_SZ_IN_8BITS;
 	hash_tbl_params.socket_id = rte_socket_id();
 	bp->vnic_queue_db.rss_q_db = rte_hash_create(&hash_tbl_params);
-- 
2.39.5 (Apple Git-154)