diff options
| author | sarveshwarb <sarveshwarb@serverengines.com> | 2009-08-06 00:05:24 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-08-06 00:05:24 +0400 |
| commit | 14074eab8dcaa7f66d8f52612b2dcec51222bb5f (patch) | |
| tree | b385d8edcc1c6ce44ac7c58552cb0de7839ceb46 /drivers/net/benet | |
| parent | 0d6038ee76f2e06b79d0465807f67e86bf4025de (diff) | |
| download | linux-14074eab8dcaa7f66d8f52612b2dcec51222bb5f.tar.xz | |
be2net: Patch to perform function reset at initialization
This patch is a bug fix to avoid system going into a bad state when
driver is loaded in context of kdump kernel. The patch fixes the issue
by performing a soft reset of pci function at probe time.
Signed-off-by: sarveshwarb <sarveshwarb@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/benet')
| -rw-r--r-- | drivers/net/benet/be_cmds.c | 21 | ||||
| -rw-r--r-- | drivers/net/benet/be_cmds.h | 2 | ||||
| -rw-r--r-- | drivers/net/benet/be_main.c | 4 |
3 files changed, 27 insertions, 0 deletions
diff --git a/drivers/net/benet/be_cmds.c b/drivers/net/benet/be_cmds.c index de107732dcdc..2547ee296a7d 100644 --- a/drivers/net/benet/be_cmds.c +++ b/drivers/net/benet/be_cmds.c @@ -1019,3 +1019,24 @@ int be_cmd_query_fw_cfg(struct be_adapter *adapter, u32 *port_num) spin_unlock(&adapter->mbox_lock); return status; } + +int be_cmd_reset_function(struct be_adapter *adapter) +{ + struct be_mcc_wrb *wrb = wrb_from_mbox(&adapter->mbox_mem); + struct be_cmd_req_hdr *req = embedded_payload(wrb); + int status; + + spin_lock(&adapter->mbox_lock); + + memset(wrb, 0, sizeof(*wrb)); + + be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); + + be_cmd_hdr_prepare(req, CMD_SUBSYSTEM_COMMON, + OPCODE_COMMON_FUNCTION_RESET, sizeof(*req)); + + status = be_mbox_notify(adapter); + + spin_unlock(&adapter->mbox_lock); + return status; +} diff --git a/drivers/net/benet/be_cmds.h b/drivers/net/benet/be_cmds.h index 5c5de3540d20..70618064ae15 100644 --- a/drivers/net/benet/be_cmds.h +++ b/drivers/net/benet/be_cmds.h @@ -135,6 +135,7 @@ struct be_mcc_mailbox { #define OPCODE_COMMON_QUERY_FIRMWARE_CONFIG 58 #define OPCODE_COMMON_NTWK_PMAC_ADD 59 #define OPCODE_COMMON_NTWK_PMAC_DEL 60 +#define OPCODE_COMMON_FUNCTION_RESET 61 #define OPCODE_ETH_ACPI_CONFIG 2 #define OPCODE_ETH_PROMISCUOUS 3 @@ -744,4 +745,5 @@ extern int be_cmd_set_flow_control(struct be_adapter *adapter, extern int be_cmd_get_flow_control(struct be_adapter *adapter, u32 *tx_fc, u32 *rx_fc); extern int be_cmd_query_fw_cfg(struct be_adapter *adapter, u32 *port_num); +extern int be_cmd_reset_function(struct be_adapter *adapter); extern void be_process_mcc(struct be_adapter *adapter); diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c index ef82a52f3934..d20235b16800 100644 --- a/drivers/net/benet/be_main.c +++ b/drivers/net/benet/be_main.c @@ -1873,6 +1873,10 @@ static int __devinit be_probe(struct pci_dev *pdev, if (status) goto free_netdev; + status = be_cmd_reset_function(adapter); + if (status) + goto ctrl_clean; + status = be_stats_init(adapter); if (status) goto ctrl_clean; |