| Message ID | 1407279923-9288-1-git-send-email-anish@chelsio.com |
|---|---|
| State | Accepted, archived |
| Delegated to: | David Miller |
| Headers | show |
From: Anish Bhatt <anish@chelsio.com> Date: Tue, 5 Aug 2014 16:05:23 -0700 > Enabling a Virtual Interface can result in an interrupt during the processing > of the VI Enable command and, in some paths, result in an attempt to issue > another command in the interrupt context, eventually crashing the system. Thus, > we disable interrupts during the course of the VI Enable command and ensure > enable doesn't sleep. > > Signed-off-by: Anish Bhatt <anish@chelsio.com> > Signed-off-by: Casey Leedom <leedom@chelsio.com> Applied. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c index 8b46534b06c1..4247356c16ff 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c @@ -673,9 +673,12 @@ static int link_start(struct net_device *dev) if (ret == 0) ret = t4_link_start(pi->adapter, mb, pi->tx_chan, &pi->link_cfg); - if (ret == 0) + if (ret == 0) { + local_bh_disable(); ret = t4_enable_vi_params(pi->adapter, mb, pi->viid, true, true, CXGB4_DCB_ENABLED); + local_bh_enable(); + } return ret; } diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c index 448bec119c3c..a853133d8db8 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c @@ -3558,7 +3558,7 @@ int t4_enable_vi_params(struct adapter *adap, unsigned int mbox, c.ien_to_len16 = htonl(FW_VI_ENABLE_CMD_IEN(rx_en) | FW_VI_ENABLE_CMD_EEN(tx_en) | FW_LEN16(c) | FW_VI_ENABLE_CMD_DCB_INFO(dcb_en)); - return t4_wr_mbox(adap, mbox, &c, sizeof(c), NULL); + return t4_wr_mbox_ns(adap, mbox, &c, sizeof(c), NULL); } /**