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authorQuinn Tran <qutran@marvell.com>2021-03-29 01:52:24 -0700
committerMartin K. Petersen <martin.petersen@oracle.com>2021-03-29 22:38:58 -0400
commit610d027b1e6372ffe3e85e8e095a562e920fd5cd (patch)
treea41cd3d37cc0a58a1cc0c5b519711bb57783353f /drivers/scsi/qla2xxx/qla_init.c
parent6641df81ab799f28a5d564f860233dd26cca0d93 (diff)
downloadlinux-610d027b1e6372ffe3e85e8e095a562e920fd5cd.tar.bz2
scsi: qla2xxx: Fix RISC RESET completion polling
After RISC RESET, the poll time for completion is too short. Fix the completion polling time. Link: https://lore.kernel.org/r/20210329085229.4367-8-njavali@marvell.com Tested-by: Laurence Oberman <loberman@redhat.com> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Quinn Tran <qutran@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_init.c')
-rw-r--r--drivers/scsi/qla2xxx/qla_init.c65
1 files changed, 59 insertions, 6 deletions
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index f6dc8166e7ba..19681d3c5b7a 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -2767,6 +2767,49 @@ qla81xx_reset_mpi(scsi_qla_host_t *vha)
return qla81xx_write_mpi_register(vha, mb);
}
+static int
+qla_chk_risc_recovery(scsi_qla_host_t *vha)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
+ __le16 __iomem *mbptr = &reg->mailbox0;
+ int i;
+ u16 mb[32];
+ int rc = QLA_SUCCESS;
+
+ if (!IS_QLA27XX(ha) && !IS_QLA28XX(ha))
+ return rc;
+
+ /* this check is only valid after RISC reset */
+ mb[0] = rd_reg_word(mbptr);
+ mbptr++;
+ if (mb[0] == 0xf) {
+ rc = QLA_FUNCTION_FAILED;
+
+ for (i = 1; i < 32; i++) {
+ mb[i] = rd_reg_word(mbptr);
+ mbptr++;
+ }
+
+ ql_log(ql_log_warn, vha, 0x1015,
+ "RISC reset failed. mb[0-7] %04xh %04xh %04xh %04xh %04xh %04xh %04xh %04xh\n",
+ mb[0], mb[1], mb[2], mb[3], mb[4], mb[5], mb[6], mb[7]);
+ ql_log(ql_log_warn, vha, 0x1015,
+ "RISC reset failed. mb[8-15] %04xh %04xh %04xh %04xh %04xh %04xh %04xh %04xh\n",
+ mb[8], mb[9], mb[10], mb[11], mb[12], mb[13], mb[14],
+ mb[15]);
+ ql_log(ql_log_warn, vha, 0x1015,
+ "RISC reset failed. mb[16-23] %04xh %04xh %04xh %04xh %04xh %04xh %04xh %04xh\n",
+ mb[16], mb[17], mb[18], mb[19], mb[20], mb[21], mb[22],
+ mb[23]);
+ ql_log(ql_log_warn, vha, 0x1015,
+ "RISC reset failed. mb[24-31] %04xh %04xh %04xh %04xh %04xh %04xh %04xh %04xh\n",
+ mb[24], mb[25], mb[26], mb[27], mb[28], mb[29], mb[30],
+ mb[31]);
+ }
+ return rc;
+}
+
/**
* qla24xx_reset_risc() - Perform full reset of ISP24xx RISC.
* @vha: HA context
@@ -2783,6 +2826,7 @@ qla24xx_reset_risc(scsi_qla_host_t *vha)
uint16_t wd;
static int abts_cnt; /* ISP abort retry counts */
int rval = QLA_SUCCESS;
+ int print = 1;
spin_lock_irqsave(&ha->hardware_lock, flags);
@@ -2871,17 +2915,26 @@ qla24xx_reset_risc(scsi_qla_host_t *vha)
rd_reg_dword(&reg->hccr);
wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_RESET);
+ mdelay(10);
rd_reg_dword(&reg->hccr);
- rd_reg_word(&reg->mailbox0);
- for (cnt = 60; rd_reg_word(&reg->mailbox0) != 0 &&
- rval == QLA_SUCCESS; cnt--) {
+ wd = rd_reg_word(&reg->mailbox0);
+ for (cnt = 300; wd != 0 && rval == QLA_SUCCESS; cnt--) {
barrier();
- if (cnt)
- udelay(5);
- else
+ if (cnt) {
+ mdelay(1);
+ if (print && qla_chk_risc_recovery(vha))
+ print = 0;
+
+ wd = rd_reg_word(&reg->mailbox0);
+ } else {
rval = QLA_FUNCTION_TIMEOUT;
+
+ ql_log(ql_log_warn, vha, 0x015e,
+ "RISC reset timeout\n");
+ }
}
+
if (rval == QLA_SUCCESS)
set_bit(RISC_RDY_AFT_RESET, &ha->fw_dump_cap_flags);