From: Andrew Rybchenko <arybchenko@solarflare.com>
Date: Wed, 29 Mar 2017 16:59:19 +0000 (+0100)
Subject: net/sfc: do not drop TSO on device configure
X-Git-Url: http://git.droids-corp.org/?p=dpdk.git;a=commitdiff_plain;h=b3b667c9925680a3dbc0e9179c975180e9432bda

net/sfc: do not drop TSO on device configure

If Tx datapath does not support TSO, TSO was dropped on device configure.
It is incorrect to change advertised offloads.

Fixes: 7a4d44a639c9 ("net/sfc: make TSO a datapath-dependent feature")

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
---

diff --git a/drivers/net/sfc/sfc.c b/drivers/net/sfc/sfc.c
index eda426c2dd..181d87a1bb 100644
--- a/drivers/net/sfc/sfc.c
+++ b/drivers/net/sfc/sfc.c
@@ -588,9 +588,12 @@ sfc_attach(struct sfc_adapter *sa)
 
 	encp = efx_nic_cfg_get(sa->nic);
 
-	sa->tso = encp->enc_fw_assisted_tso_v2_enabled;
-	if (!sa->tso)
-		sfc_warn(sa, "TSO support isn't available on this adapter");
+	if (sa->dp_tx->features & SFC_DP_TX_FEAT_TSO) {
+		sa->tso = encp->enc_fw_assisted_tso_v2_enabled;
+		if (!sa->tso)
+			sfc_warn(sa,
+				 "TSO support isn't available on this adapter");
+	}
 
 	sfc_log_init(sa, "estimate resource limits");
 	rc = sfc_estimate_resource_limits(sa);
diff --git a/drivers/net/sfc/sfc_tx.c b/drivers/net/sfc/sfc_tx.c
index 79b900b336..3c4717f09f 100644
--- a/drivers/net/sfc/sfc_tx.c
+++ b/drivers/net/sfc/sfc_tx.c
@@ -307,9 +307,6 @@ sfc_tx_init(struct sfc_adapter *sa)
 		goto fail_tx_dma_desc_boundary;
 	}
 
-	if (~sa->dp_tx->features & SFC_DP_TX_FEAT_TSO)
-		sa->tso = B_FALSE;
-
 	rc = sfc_tx_check_mode(sa, &dev_conf->txmode);
 	if (rc != 0)
 		goto fail_check_mode;