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bnx2x: fix PTE write access error 

PTE write access error  might occur in MF_ALLOWED mode when IOMMU
is active. The patch adds rmmod HSI indicating to MFW to stop
running queries which might trigger this failure.

Signed-off-by: Barak Witkowsky <barak@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Barak Witkowsky 2013-08-13 02:25:02 +03:00 committed by David S. Miller
parent 8ece516518
commit a6d3a5ba3e
3 changed files with 15 additions and 0 deletions
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1
drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
View File

@ -1502,6 +1502,7 @@ struct bnx2x {
#define BC_SUPPORTS_DCBX_MSG_NON_PMF (1 << 21)
#define IS_VF_FLAG (1 << 22)
#define INTERRUPTS_ENABLED_FLAG (1 << 23)
#define BC_SUPPORTS_RMMOD_CMD (1 << 24)
#define BP_NOMCP(bp) ((bp)->flags & NO_MCP_FLAG)

5
drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
View File

@ -1300,6 +1300,9 @@ struct drv_func_mb {
#define DRV_MSG_CODE_EEE_RESULTS_ACK 0xda000000
#define DRV_MSG_CODE_RMMOD 0xdb000000
#define REQ_BC_VER_4_RMMOD_CMD 0x0007080f
#define DRV_MSG_CODE_SET_MF_BW 0xe0000000
#define REQ_BC_VER_4_SET_MF_BW 0x00060202
#define DRV_MSG_CODE_SET_MF_BW_ACK 0xe1000000
@ -1372,6 +1375,8 @@ struct drv_func_mb {
#define FW_MSG_CODE_EEE_RESULS_ACK 0xda100000
#define FW_MSG_CODE_RMMOD_ACK 0xdb100000
#define FW_MSG_CODE_SET_MF_BW_SENT 0xe0000000
#define FW_MSG_CODE_SET_MF_BW_DONE 0xe1000000

9
drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
View File

@ -10368,6 +10368,10 @@ static void bnx2x_get_common_hwinfo(struct bnx2x *bp)
bp->flags |= (val >= REQ_BC_VER_4_DCBX_ADMIN_MSG_NON_PMF) ?
BC_SUPPORTS_DCBX_MSG_NON_PMF : 0;
bp->flags |= (val >= REQ_BC_VER_4_RMMOD_CMD) ?
BC_SUPPORTS_RMMOD_CMD : 0;
boot_mode = SHMEM_RD(bp,
dev_info.port_feature_config[BP_PORT(bp)].mba_config) &
PORT_FEATURE_MBA_BOOT_AGENT_TYPE_MASK;
@ -12824,6 +12828,11 @@ static void __bnx2x_remove(struct pci_dev *pdev,
bnx2x_dcbnl_update_applist(bp, true);
#endif
if (IS_PF(bp) &&
!BP_NOMCP(bp) &&
(bp->flags & BC_SUPPORTS_RMMOD_CMD))
bnx2x_fw_command(bp, DRV_MSG_CODE_RMMOD, 0);
/* Close the interface - either directly or implicitly */
if (remove_netdev) {
unregister_netdev(dev);