diff options
| author |   Maciej Sosnowski <maciej.sosnowski@intel.com> | 2010-11-24 17:29:46 +0000 |
|---|---|---|
| committer |   Roland Dreier <rolandd@cisco.com> | 2011-01-16 13:23:34 -0800 |
| commit | 5f61b2c6939bb6d26393df15765bc3cb260db063 (patch) | |
| tree | 0a243de60e121a3bfc06c86d7dc76ca3540fe8c4 /drivers/infiniband/hw/nes/nes_hw.h | |
| parent | RDMA/nes: Generate IB_EVENT_PORT_ERR/PORT_ACTIVE events (diff) | |
| download | linux-dev-5f61b2c6939bb6d26393df15765bc3cb260db063.tar.xz linux-dev-5f61b2c6939bb6d26393df15765bc3cb260db063.zip | |
RDMA/nes: Fix SFP+ link down detection issue with switch port disable
In case of SFP+ PHY, link status check at interrupt processing can
give false results. For proper link status change detection a delayed
recheck is needed to give nes registers time to settle. Add a
periodic link status recheck scheduled at interrupt to detect
potential delayed registers state changes.
Addresses: http://bugs.openfabrics.org/bugzilla/show_bug.cgi?id=2117
Signed-off-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/nes/nes_hw.h')
| -rw-r--r-- | drivers/infiniband/hw/nes/nes_hw.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/nes/nes_hw.h b/drivers/infiniband/hw/nes/nes_hw.h index 8a9ea9a4dc5d..d2abe07133a5 100644 --- a/drivers/infiniband/hw/nes/nes_hw.h +++ b/drivers/infiniband/hw/nes/nes_hw.h @@ -1354,6 +1354,10 @@ struct nes_terminate_hdr { #define BAD_FRAME_OFFSET 64 #define CQE_MAJOR_DRV 0x8000 +/* Used for link status recheck after interrupt processing */ +#define NES_LINK_RECHECK_DELAY msecs_to_jiffies(50) +#define NES_LINK_RECHECK_MAX 60 + #define nes_vlan_rx vlan_hwaccel_receive_skb #define nes_netif_rx netif_receive_skb |