[PATCH 19.11 1/8] net/bnxt: fix queue stop operation
Kalesh A P
kalesh-anakkur.purayil at broadcom.com
Mon Mar 7 16:10:29 CET 2022
From: Kalesh AP <kalesh-anakkur.purayil at broadcom.com>
[ upstream commit 3e6fae2b65aa778dba5059ec0bc92102f05adc54 ]
When there are no active Rx queues(i.e when all queues have been
stopped), clear the RSS redirection table of the VNIC on Thor.
Fixes: 9b63c6fd70e3 ("net/bnxt: support Rx/Tx queue start/stop")
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil at broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur at broadcom.com>
Reviewed-by: Lance Richardson <lance.richardson at broadcom.com>
---
drivers/net/bnxt/bnxt_hwrm.c | 23 +++++++++++++++++++++++
drivers/net/bnxt/bnxt_hwrm.h | 1 +
drivers/net/bnxt/bnxt_rxq.c | 3 +++
3 files changed, 27 insertions(+)
diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index 25e6b8c..6ab8ca7 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -5258,3 +5258,26 @@ int bnxt_hwrm_port_phy_qcaps(struct bnxt *bp)
return 0;
}
+
+int
+bnxt_vnic_rss_clear_p5(struct bnxt *bp, struct bnxt_vnic_info *vnic)
+{
+ struct hwrm_vnic_rss_cfg_output *resp = bp->hwrm_cmd_resp_addr;
+ struct hwrm_vnic_rss_cfg_input req = {0};
+ int nr_ctxs = vnic->num_lb_ctxts;
+ int i, rc = 0;
+
+ for (i = 0; i < nr_ctxs; i++) {
+ HWRM_PREP(req, VNIC_RSS_CFG, BNXT_USE_CHIMP_MB);
+
+ req.rss_ctx_idx = rte_cpu_to_le_16(vnic->fw_grp_ids[i]);
+ req.vnic_id = rte_cpu_to_le_16(vnic->fw_vnic_id);
+
+ rc = bnxt_hwrm_send_message(bp, &req, sizeof(req), BNXT_USE_CHIMP_MB);
+
+ HWRM_CHECK_RESULT();
+ HWRM_UNLOCK();
+ }
+
+ return rc;
+}
diff --git a/drivers/net/bnxt/bnxt_hwrm.h b/drivers/net/bnxt/bnxt_hwrm.h
index 815e61d..bb1762d 100644
--- a/drivers/net/bnxt/bnxt_hwrm.h
+++ b/drivers/net/bnxt/bnxt_hwrm.h
@@ -229,4 +229,5 @@ int bnxt_hwrm_port_phy_qcaps(struct bnxt *bp);
int bnxt_hwrm_rx_ring_reset(struct bnxt *bp, int queue_index);
int bnxt_hwrm_ring_stats(struct bnxt *bp, uint32_t cid, int idx,
struct bnxt_ring_stats *stats, bool rx);
+int bnxt_vnic_rss_clear_p5(struct bnxt *bp, struct bnxt_vnic_info *vnic);
#endif
diff --git a/drivers/net/bnxt/bnxt_rxq.c b/drivers/net/bnxt/bnxt_rxq.c
index 5fd83c0..b0ab3df 100644
--- a/drivers/net/bnxt/bnxt_rxq.c
+++ b/drivers/net/bnxt/bnxt_rxq.c
@@ -538,6 +538,9 @@ int bnxt_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id)
if (active_queue_cnt == 0) {
uint16_t saved_mru = vnic->mru;
+ /* clear RSS setting on vnic. */
+ bnxt_vnic_rss_clear_p5(bp, vnic);
+
vnic->mru = 0;
/* Reconfigure default receive ring and MRU. */
bnxt_hwrm_vnic_cfg(bp, vnic);
--
2.10.1
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