[dpdk-stable] patch 'net/bnxt: fix config RSS update' has been queued to stable release 17.08.1

[Yuanhan Liu]

Hi,

FYI, your patch has been queued to stable release 17.08.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 11/24/17. So please
shout if anyone has objections.

Thanks.

	--yliu

---
>From fb99c56f87ae45a3fa2b1f06ffe9019a105278a0 Mon Sep 17 00:00:00 2001
From: Ajit Khaparde <ajit.khaparde at broadcom.com>
Date: Thu, 28 Sep 2017 16:43:33 -0500
Subject: [PATCH] net/bnxt: fix config RSS update

[ upstream commit 1ebb765090a6496e2f2a291cc4402e770670bf57 ]

We are not configuring the RSS settings updated by rss_hash_update().
Fixing it.

Fixes: fcc0aa1edc10 ("net/bnxt: add RSS hash configuration")

Signed-off-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
---
 drivers/net/bnxt/bnxt.h        | 2 ++
 drivers/net/bnxt/bnxt_ethdev.c | 4 ++++
 drivers/net/bnxt/bnxt_rxq.c    | 5 +++++
 3 files changed, 11 insertions(+)

diff --git a/drivers/net/bnxt/bnxt.h b/drivers/net/bnxt/bnxt.h
index 3579505..65f716b 100644
--- a/drivers/net/bnxt/bnxt.h
+++ b/drivers/net/bnxt/bnxt.h
@@ -176,6 +176,7 @@ struct bnxt {
 	void				*bar0;
 
 	struct rte_eth_dev		*eth_dev;
+	struct rte_eth_rss_conf		rss_conf;
 	struct rte_pci_device		*pdev;
 
 	uint32_t		flags;
@@ -184,6 +185,7 @@ struct bnxt {
 #define BNXT_FLAG_PORT_STATS	(1 << 2)
 #define BNXT_FLAG_JUMBO		(1 << 3)
 #define BNXT_FLAG_SHORT_CMD	(1 << 4)
+#define BNXT_FLAG_UPDATE_HASH	(1 << 5)
 #define BNXT_PF(bp)		(!((bp)->flags & BNXT_FLAG_VF))
 #define BNXT_VF(bp)		((bp)->flags & BNXT_FLAG_VF)
 #define BNXT_NPAR_ENABLED(bp)	((bp)->port_partition_type)
diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index 6e5cb88..7bcd9a3 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -837,6 +837,10 @@ static int bnxt_rss_hash_update_op(struct rte_eth_dev *eth_dev,
 		if (rss_conf->rss_hf & BNXT_ETH_RSS_SUPPORT)
 			return -EINVAL;
 	}
+
+	bp->flags |= BNXT_FLAG_UPDATE_HASH;
+	memcpy(&bp->rss_conf, rss_conf, sizeof(*rss_conf));
+
 	if (rss_conf->rss_hf & ETH_RSS_IPV4)
 		hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_IPV4;
 	if (rss_conf->rss_hf & ETH_RSS_NONFRAG_IPV4_TCP)
diff --git a/drivers/net/bnxt/bnxt_rxq.c b/drivers/net/bnxt/bnxt_rxq.c
index 8459fcc..690a599 100644
--- a/drivers/net/bnxt/bnxt_rxq.c
+++ b/drivers/net/bnxt/bnxt_rxq.c
@@ -188,6 +188,11 @@ out:
 		struct rte_eth_rss_conf *rss = &dev_conf->rx_adv_conf.rss_conf;
 		uint16_t hash_type = 0;
 
+		if (bp->flags & BNXT_FLAG_UPDATE_HASH) {
+			rss = &bp->rss_conf;
+			bp->flags &= ~BNXT_FLAG_UPDATE_HASH;
+		}
+
 		if (rss->rss_hf & ETH_RSS_IPV4)
 			hash_type |= HWRM_VNIC_RSS_CFG_INPUT_HASH_TYPE_IPV4;
 		if (rss->rss_hf & ETH_RSS_NONFRAG_IPV4_TCP)
-- 
2.7.4