bnx2x: Clean before update RSS arrives

When a PF receives a VF message indicating a change in RSS properties
it should clean the flags' bit-fields; Otherwise, it's possible that
some random values will be considered as flags by the lower layers configuring
the RSS in FW.

Signed-off-by: Michal Kalderon <michals@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 7 insertions, 1 deletions

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
index 32c92abf5094..95feada2549a 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
@@ -4382,8 +4382,11 @@ int bnx2x_config_rss(struct bnx2x *bp,
         struct bnx2x_raw_obj *r = &o->raw;
 
         /* Do nothing if only driver cleanup was requested */
-        if (test_bit(RAMROD_DRV_CLR_ONLY, &p->ramrod_flags))
+        if (test_bit(RAMROD_DRV_CLR_ONLY, &p->ramrod_flags)) {
+                DP(BNX2X_MSG_SP, "Not configuring RSS ramrod_flags=%lx\n",
+                   p->ramrod_flags);
                 return 0;
+        }
 
         r->set_pending(r);
 
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
index 3dc2537fe91b..26fcba2dd94d 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
@@ -1805,6 +1805,9 @@ static void bnx2x_vf_mbx_update_rss(struct bnx2x *bp, struct bnx2x_virtf *vf,
         vf_op_params->rss_result_mask = rss_tlv->rss_result_mask;
 
         /* flags handled individually for backward/forward compatability */
+        vf_op_params->rss_flags = 0;
+        vf_op_params->ramrod_flags = 0;
+
         if (rss_tlv->rss_flags & VFPF_RSS_MODE_DISABLED)
                 __set_bit(BNX2X_RSS_MODE_DISABLED, &vf_op_params->rss_flags);
         if (rss_tlv->rss_flags & VFPF_RSS_MODE_REGULAR)