[PATCH] net/bnxt: limit max_vnics for CoS classification

[Dave Johnson]

When using CoS classification the number of vnics is capped
to avoid unnecessary memzone allocations.

Signed-off-by: Dave Johnson <davejo at cisco.com>
---
 .mailmap                     |  1 +
 drivers/net/bnxt/bnxt.h      |  1 +
 drivers/net/bnxt/bnxt_hwrm.c | 10 ++++++++--
 3 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/.mailmap b/.mailmap
index 4018f0fc47..ae52428557 100644
--- a/.mailmap
+++ b/.mailmap
@@ -271,6 +271,7 @@ Dariusz Stojaczyk <dariuszx.stojaczyk at intel.com>
 Darren Edamura <darren.edamura at broadcom.com>
 Dave Burley <dave.burley at accelercomm.com>
 Dave Ertman <david.m.ertman at intel.com>
+Dave Johnson <davejo at cisco.com>
 David Binderman <dcb314 at hotmail.com>
 David Bouyeure <david.bouyeure at fraudbuster.mobi>
 David Christensen <drc at linux.vnet.ibm.com> <david.christensen at broadcom.com>
diff --git a/drivers/net/bnxt/bnxt.h b/drivers/net/bnxt/bnxt.h
index f6eaaeb470..48bd8f2418 100644
--- a/drivers/net/bnxt/bnxt.h
+++ b/drivers/net/bnxt/bnxt.h
@@ -811,6 +811,7 @@ struct bnxt {
 	uint16_t		max_l2_ctx;
 	uint16_t		max_rx_em_flows;
 	uint16_t		max_vnics;
+#define BNXT_MAX_VNICS_COS_CLASSIFY	8
 	uint16_t		max_stat_ctx;
 	uint16_t		max_tpa_v2;
 	uint16_t		first_vf_id;
diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index 51e1e2d6b3..d86ac73293 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -902,7 +902,10 @@ static int __bnxt_hwrm_func_qcaps(struct bnxt *bp)
 	bp->max_l2_ctx = rte_le_to_cpu_16(resp->max_l2_ctxs);
 	if (!BNXT_CHIP_P5(bp) && !bp->pdev->max_vfs)
 		bp->max_l2_ctx += bp->max_rx_em_flows;
-	bp->max_vnics = rte_le_to_cpu_16(resp->max_vnics);
+	if (bp->vnic_cap_flags & BNXT_VNIC_CAP_COS_CLASSIFY)
+		bp->max_vnics = rte_le_to_cpu_16(BNXT_MAX_VNICS_COS_CLASSIFY);
+	else
+		bp->max_vnics = rte_le_to_cpu_16(resp->max_vnics);
 	PMD_DRV_LOG(DEBUG, "Max l2_cntxts is %d vnics is %d\n",
 		    bp->max_l2_ctx, bp->max_vnics);
 	bp->max_stat_ctx = rte_le_to_cpu_16(resp->max_stat_ctx);
@@ -1211,7 +1214,10 @@ int bnxt_hwrm_func_resc_qcaps(struct bnxt *bp)
 	bp->max_l2_ctx = rte_le_to_cpu_16(resp->max_l2_ctxs);
 	if (!BNXT_CHIP_P5(bp) && !bp->pdev->max_vfs)
 		bp->max_l2_ctx += bp->max_rx_em_flows;
-	bp->max_vnics = rte_le_to_cpu_16(resp->max_vnics);
+	if (bp->vnic_cap_flags & BNXT_VNIC_CAP_COS_CLASSIFY)
+		bp->max_vnics = rte_le_to_cpu_16(BNXT_MAX_VNICS_COS_CLASSIFY);
+	else
+		bp->max_vnics = rte_le_to_cpu_16(resp->max_vnics);
 	bp->max_stat_ctx = rte_le_to_cpu_16(resp->max_stat_ctx);
 	bp->max_nq_rings = rte_le_to_cpu_16(resp->max_msix);
 	bp->vf_resv_strategy = rte_le_to_cpu_16(resp->vf_reservation_strategy);
-- 
2.35.6