Author: freqlabs
Date: Mon Jun 15 16:35:27 2020
New Revision: 362201
URL: https://svnweb.freebsd.org/changeset/base/362201

Log:
  Avoid trying to toggle TSO twice
  
  Remove TSO from the toggle mask when automatically disabled by TXCKSUM* in
  various NIC drivers.
  
  Reviewed by:  hselasky, np, gallatin, jpaetzel
  Approved by:  mav (mentor)
  MFC after:    1 week
  Sponsored by: iXsystems, Inc.
  Differential Revision:        https://reviews.freebsd.org/D25120

Modified:
  head/sys/dev/cxgb/cxgb_main.c
  head/sys/dev/cxgbe/t4_main.c
  head/sys/dev/mlx4/mlx4_en/mlx4_en_netdev.c
  head/sys/dev/mlx5/mlx5_en/mlx5_en_main.c
  head/sys/dev/mxge/if_mxge.c
  head/sys/dev/oce/oce_if.c

Modified: head/sys/dev/cxgb/cxgb_main.c
==============================================================================
--- head/sys/dev/cxgb/cxgb_main.c       Mon Jun 15 15:59:44 2020        
(r362200)
+++ head/sys/dev/cxgb/cxgb_main.c       Mon Jun 15 16:35:27 2020        
(r362201)
@@ -1964,6 +1964,7 @@ fail:
 
                        if (IFCAP_TSO4 & ifp->if_capenable &&
                            !(IFCAP_TXCSUM & ifp->if_capenable)) {
+                               mask &= ~IFCAP_TSO4;
                                ifp->if_capenable &= ~IFCAP_TSO4;
                                if_printf(ifp,
                                    "tso4 disabled due to -txcsum.\n");
@@ -1975,6 +1976,7 @@ fail:
 
                        if (IFCAP_TSO6 & ifp->if_capenable &&
                            !(IFCAP_TXCSUM_IPV6 & ifp->if_capenable)) {
+                               mask &= ~IFCAP_TSO6;
                                ifp->if_capenable &= ~IFCAP_TSO6;
                                if_printf(ifp,
                                    "tso6 disabled due to -txcsum6.\n");

Modified: head/sys/dev/cxgbe/t4_main.c
==============================================================================
--- head/sys/dev/cxgbe/t4_main.c        Mon Jun 15 15:59:44 2020        
(r362200)
+++ head/sys/dev/cxgbe/t4_main.c        Mon Jun 15 16:35:27 2020        
(r362201)
@@ -1989,6 +1989,7 @@ cxgbe_ioctl(struct ifnet *ifp, unsigned long cmd, cadd
 
                        if (IFCAP_TSO4 & ifp->if_capenable &&
                            !(IFCAP_TXCSUM & ifp->if_capenable)) {
+                               mask &= ~IFCAP_TSO4;
                                ifp->if_capenable &= ~IFCAP_TSO4;
                                if_printf(ifp,
                                    "tso4 disabled due to -txcsum.\n");
@@ -2000,6 +2001,7 @@ cxgbe_ioctl(struct ifnet *ifp, unsigned long cmd, cadd
 
                        if (IFCAP_TSO6 & ifp->if_capenable &&
                            !(IFCAP_TXCSUM_IPV6 & ifp->if_capenable)) {
+                               mask &= ~IFCAP_TSO6;
                                ifp->if_capenable &= ~IFCAP_TSO6;
                                if_printf(ifp,
                                    "tso6 disabled due to -txcsum6.\n");

Modified: head/sys/dev/mlx4/mlx4_en/mlx4_en_netdev.c
==============================================================================
--- head/sys/dev/mlx4/mlx4_en/mlx4_en_netdev.c  Mon Jun 15 15:59:44 2020        
(r362200)
+++ head/sys/dev/mlx4/mlx4_en/mlx4_en_netdev.c  Mon Jun 15 16:35:27 2020        
(r362201)
@@ -2006,6 +2006,7 @@ static int mlx4_en_ioctl(struct ifnet *dev, u_long com
 
                        if (IFCAP_TSO4 & dev->if_capenable &&
                            !(IFCAP_TXCSUM & dev->if_capenable)) {
+                               mask &= ~IFCAP_TSO4;
                                dev->if_capenable &= ~IFCAP_TSO4;
                                dev->if_hwassist &= ~CSUM_IP_TSO;
                                if_printf(dev,
@@ -2018,6 +2019,7 @@ static int mlx4_en_ioctl(struct ifnet *dev, u_long com
 
                        if (IFCAP_TSO6 & dev->if_capenable &&
                            !(IFCAP_TXCSUM_IPV6 & dev->if_capenable)) {
+                               mask &= ~IFCAP_TSO6;
                                dev->if_capenable &= ~IFCAP_TSO6;
                                dev->if_hwassist &= ~CSUM_IP6_TSO;
                                if_printf(dev,

Modified: head/sys/dev/mlx5/mlx5_en/mlx5_en_main.c
==============================================================================
--- head/sys/dev/mlx5/mlx5_en/mlx5_en_main.c    Mon Jun 15 15:59:44 2020        
(r362200)
+++ head/sys/dev/mlx5/mlx5_en/mlx5_en_main.c    Mon Jun 15 16:35:27 2020        
(r362201)
@@ -3323,6 +3323,7 @@ mlx5e_ioctl(struct ifnet *ifp, u_long command, caddr_t
 
                        if (IFCAP_TSO4 & ifp->if_capenable &&
                            !(IFCAP_TXCSUM & ifp->if_capenable)) {
+                               mask &= ~IFCAP_TSO4;
                                ifp->if_capenable &= ~IFCAP_TSO4;
                                ifp->if_hwassist &= ~CSUM_IP_TSO;
                                mlx5_en_err(ifp,
@@ -3335,6 +3336,7 @@ mlx5e_ioctl(struct ifnet *ifp, u_long command, caddr_t
 
                        if (IFCAP_TSO6 & ifp->if_capenable &&
                            !(IFCAP_TXCSUM_IPV6 & ifp->if_capenable)) {
+                               mask &= ~IFCAP_TSO6;
                                ifp->if_capenable &= ~IFCAP_TSO6;
                                ifp->if_hwassist &= ~CSUM_IP6_TSO;
                                mlx5_en_err(ifp,

Modified: head/sys/dev/mxge/if_mxge.c
==============================================================================
--- head/sys/dev/mxge/if_mxge.c Mon Jun 15 15:59:44 2020        (r362200)
+++ head/sys/dev/mxge/if_mxge.c Mon Jun 15 16:35:27 2020        (r362201)
@@ -4223,13 +4223,15 @@ mxge_ioctl(struct ifnet *ifp, u_long command, caddr_t 
                mask = ifr->ifr_reqcap ^ ifp->if_capenable;
                if (mask & IFCAP_TXCSUM) {
                        if (IFCAP_TXCSUM & ifp->if_capenable) {
+                               mask &= ~IFCAP_TSO4;
                                ifp->if_capenable &= ~(IFCAP_TXCSUM|IFCAP_TSO4);
                                ifp->if_hwassist &= ~(CSUM_TCP | CSUM_UDP);
                        } else {
                                ifp->if_capenable |= IFCAP_TXCSUM;
                                ifp->if_hwassist |= (CSUM_TCP | CSUM_UDP);
                        }
-               } else if (mask & IFCAP_RXCSUM) {
+               }
+               if (mask & IFCAP_RXCSUM) {
                        if (IFCAP_RXCSUM & ifp->if_capenable) {
                                ifp->if_capenable &= ~IFCAP_RXCSUM;
                        } else {
@@ -4251,6 +4253,7 @@ mxge_ioctl(struct ifnet *ifp, u_long command, caddr_t 
 #if IFCAP_TSO6
                if (mask & IFCAP_TXCSUM_IPV6) {
                        if (IFCAP_TXCSUM_IPV6 & ifp->if_capenable) {
+                               mask &= ~IFCAP_TSO6;
                                ifp->if_capenable &= ~(IFCAP_TXCSUM_IPV6
                                                       | IFCAP_TSO6);
                                ifp->if_hwassist &= ~(CSUM_TCP_IPV6
@@ -4260,7 +4263,8 @@ mxge_ioctl(struct ifnet *ifp, u_long command, caddr_t 
                                ifp->if_hwassist |= (CSUM_TCP_IPV6
                                                     | CSUM_UDP_IPV6);
                        }
-               } else if (mask & IFCAP_RXCSUM_IPV6) {
+               }
+               if (mask & IFCAP_RXCSUM_IPV6) {
                        if (IFCAP_RXCSUM_IPV6 & ifp->if_capenable) {
                                ifp->if_capenable &= ~IFCAP_RXCSUM_IPV6;
                        } else {

Modified: head/sys/dev/oce/oce_if.c
==============================================================================
--- head/sys/dev/oce/oce_if.c   Mon Jun 15 15:59:44 2020        (r362200)
+++ head/sys/dev/oce/oce_if.c   Mon Jun 15 16:35:27 2020        (r362201)
@@ -539,6 +539,7 @@ oce_ioctl(struct ifnet *ifp, u_long command, caddr_t d
                        
                        if (IFCAP_TSO & ifp->if_capenable &&
                            !(IFCAP_TXCSUM & ifp->if_capenable)) {
+                               u &= ~IFCAP_TSO;
                                ifp->if_capenable &= ~IFCAP_TSO;
                                ifp->if_hwassist &= ~CSUM_TSO;
                                if_printf(ifp,
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