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authorDavid S. Miller <davem@davemloft.net>2014-06-03 23:32:12 -0700
committerDavid S. Miller <davem@davemloft.net>2014-06-03 23:32:12 -0700
commitc99f7abf0e69987e4add567e155e042cb1f2a20b (patch)
treed23898dc30ed25c1dae9bb6325041027d412397a /drivers/net/ethernet/broadcom/bnx2x
parent92ff71b8fe9cd9c673615fc6f3870af7376d7c84 (diff)
parentd8b0426af5b67973585712c9af36b86f6ea97815 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts: include/net/inetpeer.h net/ipv6/output_core.c Changes in net were fixing bugs in code removed in net-next. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnx2x')
-rw-r--r--drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c12
-rw-r--r--drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c4
2 files changed, 14 insertions, 2 deletions
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index d18441ebe94..23da47925fa 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -906,6 +906,18 @@ static int bnx2x_rx_int(struct bnx2x_fastpath *fp, int budget)
bd_prod = RX_BD(bd_prod);
bd_cons = RX_BD(bd_cons);
+ /* A rmb() is required to ensure that the CQE is not read
+ * before it is written by the adapter DMA. PCI ordering
+ * rules will make sure the other fields are written before
+ * the marker at the end of struct eth_fast_path_rx_cqe
+ * but without rmb() a weakly ordered processor can process
+ * stale data. Without the barrier TPA state-machine might
+ * enter inconsistent state and kernel stack might be
+ * provided with incorrect packet description - these lead
+ * to various kernel crashed.
+ */
+ rmb();
+
cqe_fp_flags = cqe_fp->type_error_flags;
cqe_fp_type = cqe_fp_flags & ETH_FAST_PATH_RX_CQE_TYPE;
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index ff2bdd80f0a..cf14218697e 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -13283,8 +13283,8 @@ static int bnx2x_eeh_nic_unload(struct bnx2x *bp)
netdev_reset_tc(bp->dev);
del_timer_sync(&bp->timer);
- cancel_delayed_work(&bp->sp_task);
- cancel_delayed_work(&bp->period_task);
+ cancel_delayed_work_sync(&bp->sp_task);
+ cancel_delayed_work_sync(&bp->period_task);
spin_lock_bh(&bp->stats_lock);
bp->stats_state = STATS_STATE_DISABLED;