diff options
| author | Suresh Reddy <Suresh.Reddy@emulex.com> | 2015-07-10 11:32:50 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-07-11 08:24:30 +0200 |
| commit | 9c8559750cd7b7936dd38810fc2110fc91d7d527 (patch) | |
| tree | 6838d849e43444c5beb70b2e4b1de0d690926656 | |
| parent | be2net: make the RX_FILTER command asynchronous (diff) | |
| download | linux-9c8559750cd7b7936dd38810fc2110fc91d7d527.tar.xz linux-9c8559750cd7b7936dd38810fc2110fc91d7d527.zip | |
be2net: make SET_LOOPBACK_MODE cmd asynchrounous
The SET_LOOPBACK_MODE command is always issued from ethtool only in a
process context. So, while waiting for the cmd to complete, the driver
can sleep instead of holding spin_lock_bh() on the mcc_lock. This is done
by calling be_mcc_notify() instead of be_mcc_notify_wait() (that returns
only after the cmd completes while the MCCQ is locked).
Signed-off-by: Suresh Reddy <suresh.reddy@avagotech.com>
Signed-off-by: Sathya Perla <sathya.perla@avagotech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/emulex/benet/be_cmds.c | 23 | ||||
| -rw-r--r-- | drivers/net/ethernet/emulex/benet/be_cmds.h | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/emulex/benet/be_ethtool.c | 15 |
3 files changed, 35 insertions, 5 deletions
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c index 93934d347a23..ecad46f79653 100644 --- a/drivers/net/ethernet/emulex/benet/be_cmds.c +++ b/drivers/net/ethernet/emulex/benet/be_cmds.c @@ -172,6 +172,12 @@ static void be_async_cmd_process(struct be_adapter *adapter, return; } + if (opcode == OPCODE_LOWLEVEL_SET_LOOPBACK_MODE && + subsystem == CMD_SUBSYSTEM_LOWLEVEL) { + complete(&adapter->et_cmd_compl); + return; + } + if ((opcode == OPCODE_COMMON_WRITE_FLASHROM || opcode == OPCODE_COMMON_WRITE_OBJECT) && subsystem == CMD_SUBSYSTEM_COMMON) { @@ -2600,7 +2606,7 @@ int be_cmd_set_loopback(struct be_adapter *adapter, u8 port_num, wrb = wrb_from_mccq(adapter); if (!wrb) { status = -EBUSY; - goto err; + goto err_unlock; } req = embedded_payload(wrb); @@ -2614,8 +2620,19 @@ int be_cmd_set_loopback(struct be_adapter *adapter, u8 port_num, req->loopback_type = loopback_type; req->loopback_state = enable; - status = be_mcc_notify_wait(adapter); -err: + status = be_mcc_notify(adapter); + if (status) + goto err_unlock; + + spin_unlock_bh(&adapter->mcc_lock); + + if (!wait_for_completion_timeout(&adapter->et_cmd_compl, + msecs_to_jiffies(SET_LB_MODE_TIMEOUT))) + status = -ETIMEDOUT; + + return status; + +err_unlock: spin_unlock_bh(&adapter->mcc_lock); return status; } diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h index f0a92b7e4e7d..a4479f7488d3 100644 --- a/drivers/net/ethernet/emulex/benet/be_cmds.h +++ b/drivers/net/ethernet/emulex/benet/be_cmds.h @@ -1495,6 +1495,8 @@ struct be_cmd_resp_acpi_wol_magic_config_v1 { #define BE_PME_D3COLD_CAP 0x80 /********************** LoopBack test *********************/ +#define SET_LB_MODE_TIMEOUT 12000 + struct be_cmd_req_loopback_test { struct be_cmd_req_hdr hdr; u32 loopback_type; diff --git a/drivers/net/ethernet/emulex/benet/be_ethtool.c b/drivers/net/ethernet/emulex/benet/be_ethtool.c index b2476dbfd103..d20ff054c1f7 100644 --- a/drivers/net/ethernet/emulex/benet/be_ethtool.c +++ b/drivers/net/ethernet/emulex/benet/be_ethtool.c @@ -847,10 +847,21 @@ err: static u64 be_loopback_test(struct be_adapter *adapter, u8 loopback_type, u64 *status) { - be_cmd_set_loopback(adapter, adapter->hba_port_num, loopback_type, 1); + int ret; + + ret = be_cmd_set_loopback(adapter, adapter->hba_port_num, + loopback_type, 1); + if (ret) + return ret; + *status = be_cmd_loopback_test(adapter, adapter->hba_port_num, loopback_type, 1500, 2, 0xabc); - be_cmd_set_loopback(adapter, adapter->hba_port_num, BE_NO_LOOPBACK, 1); + + ret = be_cmd_set_loopback(adapter, adapter->hba_port_num, + BE_NO_LOOPBACK, 1); + if (ret) + return ret; + return *status; } |