[dpdk-dev] [PATCH v3 08/15] net/bnxt: save the number of EM flow count

[Ajit Khaparde]

Save the number of EM flow count returned by the FW in HWRM_FUNC_QCFG
and use it to calculate the overall pool of L2 contexts supported by FW.

Fixes: 6d8109bcb398 ("net/bnxt: check VF resources if resource manager is enabled")
Cc: stable at dpdk.org

Signed-off-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
Reviewed-by: Kalesh Anakkur Purayil <kalesh-anakkur.purayil at broadcom.com>
---
 drivers/net/bnxt/bnxt.h      |  1 +
 drivers/net/bnxt/bnxt_hwrm.c | 11 +++++++++--
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/net/bnxt/bnxt.h b/drivers/net/bnxt/bnxt.h
index 45e7359b2..cd809b385 100644
--- a/drivers/net/bnxt/bnxt.h
+++ b/drivers/net/bnxt/bnxt.h
@@ -429,6 +429,7 @@ struct bnxt {
 	uint16_t		max_rx_rings;
 	uint16_t		max_nq_rings;
 	uint16_t		max_l2_ctx;
+	uint16_t		max_rx_em_flows;
 	uint16_t		max_vnics;
 	uint16_t		max_stat_ctx;
 	uint16_t		first_vf_id;
diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index b6f9ec0a0..84cda5e6c 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -589,8 +589,10 @@ static int __bnxt_hwrm_func_qcaps(struct bnxt *bp)
 	bp->max_cp_rings = rte_le_to_cpu_16(resp->max_cmpl_rings);
 	bp->max_tx_rings = rte_le_to_cpu_16(resp->max_tx_rings);
 	bp->max_rx_rings = rte_le_to_cpu_16(resp->max_rx_rings);
-	bp->max_l2_ctx = rte_le_to_cpu_16(resp->max_l2_ctxs);
 	bp->first_vf_id = rte_le_to_cpu_16(resp->first_vf_id);
+	bp->max_rx_em_flows = rte_le_to_cpu_16(resp->max_rx_em_flows);
+	bp->max_l2_ctx =
+		rte_le_to_cpu_16(resp->max_l2_ctxs) + bp->max_rx_em_flows;
 	/* TODO: For now, do not support VMDq/RFS on VFs. */
 	if (BNXT_PF(bp)) {
 		if (bp->pf.max_vfs)
@@ -796,7 +798,12 @@ int bnxt_hwrm_func_resc_qcaps(struct bnxt *bp)
 		bp->max_tx_rings = rte_le_to_cpu_16(resp->max_tx_rings);
 		bp->max_rx_rings = rte_le_to_cpu_16(resp->max_rx_rings);
 		bp->max_ring_grps = rte_le_to_cpu_32(resp->max_hw_ring_grps);
-		bp->max_l2_ctx = rte_le_to_cpu_16(resp->max_l2_ctxs);
+		/* func_resource_qcaps does not return max_rx_em_flows.
+		 * So use the value provided by func_qcaps.
+		 */
+		bp->max_l2_ctx =
+			rte_le_to_cpu_16(resp->max_l2_ctxs) +
+			bp->max_rx_em_flows;
 		bp->max_vnics = rte_le_to_cpu_16(resp->max_vnics);
 		bp->max_stat_ctx = rte_le_to_cpu_16(resp->max_stat_ctx);
 	}
-- 
2.20.1 (Apple Git-117)