@@ -1019,3 +1019,24 @@ int be_cmd_query_fw_cfg(struct be_adapte
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;
+}
@@ -135,6 +135,7 @@ #define OPCODE_COMMON_EQ_DESTROY
#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(struc
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);
@@ -1873,6 +1873,10 @@ static int __devinit be_probe(struct pci
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;
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> --- drivers/net/benet/be_cmds.c | 21 +++++++++++++++++++++ drivers/net/benet/be_cmds.h | 2 ++ drivers/net/benet/be_main.c | 4 ++++ 3 files changed, 27 insertions(+), 0 deletions(-)