diff options
| author | Joe Carnuccio <joe.carnuccio@qlogic.com> | 2012-11-21 02:40:37 -0500 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-11-30 15:11:16 +0000 |
| commit | 4ea2c9c7b32f808cb2743f2e349a614aa3a46088 (patch) | |
| tree | 8ecb3f529a11815db5c783c64df3f521fe0c9567 /drivers/scsi/qla2xxx/qla_fw.h | |
| parent | 807fb6d8afad1552c6981256a83bc2c0ce4e2125 (diff) | |
| download | linux-4ea2c9c7b32f808cb2743f2e349a614aa3a46088.tar.gz | |
[SCSI] qla2xxx: Add acquiring of risc semaphore before doing ISP reset.
Try to acquire the semaphore; if semaphore is hung then acquire it by force. The ISP reset clears the semaphore, thereby implicitly releasing it. Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com> Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_fw.h')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_fw.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_fw.h b/drivers/scsi/qla2xxx/qla_fw.h index 59524aa0ab32..be6d61a89edc 100644 --- a/drivers/scsi/qla2xxx/qla_fw.h +++ b/drivers/scsi/qla2xxx/qla_fw.h @@ -1092,6 +1092,27 @@ struct device_reg_24xx { uint32_t unused_6[2]; /* Gap. */ uint32_t iobase_sdata; }; +/* RISC-RISC semaphore register PCI offet */ +#define RISC_REGISTER_BASE_OFFSET 0x7010 +#define RISC_REGISTER_WINDOW_OFFET 0x6 + +/* RISC-RISC semaphore/flag register (risc address 0x7016) */ + +#define RISC_SEMAPHORE 0x1UL +#define RISC_SEMAPHORE_WE (RISC_SEMAPHORE << 16) +#define RISC_SEMAPHORE_CLR (RISC_SEMAPHORE_WE | 0x0UL) +#define RISC_SEMAPHORE_SET (RISC_SEMAPHORE_WE | RISC_SEMAPHORE) + +#define RISC_SEMAPHORE_FORCE 0x8000UL +#define RISC_SEMAPHORE_FORCE_WE (RISC_SEMAPHORE_FORCE << 16) +#define RISC_SEMAPHORE_FORCE_CLR (RISC_SEMAPHORE_FORCE_WE | 0x0UL) +#define RISC_SEMAPHORE_FORCE_SET \ + (RISC_SEMAPHORE_FORCE_WE | RISC_SEMAPHORE_FORCE) + +/* RISC semaphore timeouts (ms) */ +#define TIMEOUT_SEMAPHORE 2500 +#define TIMEOUT_SEMAPHORE_FORCE 2000 +#define TIMEOUT_TOTAL_ELAPSED 4500 /* Trace Control *************************************************************/ |