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authorBart Van Assche <bart.vanassche@wdc.com>2018-06-15 14:42:00 -0700
committerMartin K. Petersen <martin.petersen@oracle.com>2018-06-19 22:02:25 -0400
commitc7a357058882637548dd0908b743c674a23ce0e2 (patch)
tree72403dee267b3bc6eb9338078a10fd502ac5321c /drivers/scsi/mpt3sas/mpt3sas_ctl.c
parentscsi: mpt3sas: Fix a race condition in mpt3sas_base_hard_reset_handler() (diff)
downloadlinux-dev-c7a357058882637548dd0908b743c674a23ce0e2.tar.xz
linux-dev-c7a357058882637548dd0908b743c674a23ce0e2.zip
scsi: mpt3sas: Split _base_reset_handler(), mpt3sas_scsih_reset_handler() and mpt3sas_ctl_reset_handler()
Split each of these functions in three functions - one function per reset phase. This patch does not change any functionality but makes the code easier to read. Note: it is much easier to review the git diff -w output after having applied this patch than by reviewing the patch itself. Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Cc: Sathya Prakash <sathya.prakash@broadcom.com> Cc: Chaitra P B <chaitra.basappa@broadcom.com> Cc: Suganath Prabu Subramani <suganath-prabu.subramani@broadcom.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/mpt3sas/mpt3sas_ctl.c')
-rw-r--r--drivers/scsi/mpt3sas/mpt3sas_ctl.c89
1 files changed, 49 insertions, 40 deletions
diff --git a/drivers/scsi/mpt3sas/mpt3sas_ctl.c b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
index 6126d4ebfa24..0b8fd13593bf 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_ctl.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
@@ -460,57 +460,66 @@ out:
/**
* mpt3sas_ctl_reset_handler - reset callback handler (for ctl)
* @ioc: per adapter object
- * @reset_phase: phase
*
* The handler for doing any required cleanup or initialization.
- *
- * The reset phase can be MPT3_IOC_PRE_RESET, MPT3_IOC_AFTER_RESET,
- * MPT3_IOC_DONE_RESET
*/
-void
-mpt3sas_ctl_reset_handler(struct MPT3SAS_ADAPTER *ioc, int reset_phase)
+void mpt3sas_ctl_pre_reset_handler(struct MPT3SAS_ADAPTER *ioc)
{
int i;
u8 issue_reset;
- switch (reset_phase) {
- case MPT3_IOC_PRE_RESET:
- dtmprintk(ioc, pr_info(MPT3SAS_FMT
+ dtmprintk(ioc, pr_info(MPT3SAS_FMT
"%s: MPT3_IOC_PRE_RESET\n", ioc->name, __func__));
- for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
- if (!(ioc->diag_buffer_status[i] &
- MPT3_DIAG_BUFFER_IS_REGISTERED))
- continue;
- if ((ioc->diag_buffer_status[i] &
- MPT3_DIAG_BUFFER_IS_RELEASED))
- continue;
- mpt3sas_send_diag_release(ioc, i, &issue_reset);
- }
- break;
- case MPT3_IOC_AFTER_RESET:
- dtmprintk(ioc, pr_info(MPT3SAS_FMT
+ for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
+ if (!(ioc->diag_buffer_status[i] &
+ MPT3_DIAG_BUFFER_IS_REGISTERED))
+ continue;
+ if ((ioc->diag_buffer_status[i] &
+ MPT3_DIAG_BUFFER_IS_RELEASED))
+ continue;
+ mpt3sas_send_diag_release(ioc, i, &issue_reset);
+ }
+}
+
+/**
+ * mpt3sas_ctl_reset_handler - reset callback handler (for ctl)
+ * @ioc: per adapter object
+ *
+ * The handler for doing any required cleanup or initialization.
+ */
+void mpt3sas_ctl_after_reset_handler(struct MPT3SAS_ADAPTER *ioc)
+{
+ dtmprintk(ioc, pr_info(MPT3SAS_FMT
"%s: MPT3_IOC_AFTER_RESET\n", ioc->name, __func__));
- if (ioc->ctl_cmds.status & MPT3_CMD_PENDING) {
- ioc->ctl_cmds.status |= MPT3_CMD_RESET;
- mpt3sas_base_free_smid(ioc, ioc->ctl_cmds.smid);
- complete(&ioc->ctl_cmds.done);
- }
- break;
- case MPT3_IOC_DONE_RESET:
- dtmprintk(ioc, pr_info(MPT3SAS_FMT
+ if (ioc->ctl_cmds.status & MPT3_CMD_PENDING) {
+ ioc->ctl_cmds.status |= MPT3_CMD_RESET;
+ mpt3sas_base_free_smid(ioc, ioc->ctl_cmds.smid);
+ complete(&ioc->ctl_cmds.done);
+ }
+}
+
+/**
+ * mpt3sas_ctl_reset_handler - reset callback handler (for ctl)
+ * @ioc: per adapter object
+ *
+ * The handler for doing any required cleanup or initialization.
+ */
+void mpt3sas_ctl_reset_done_handler(struct MPT3SAS_ADAPTER *ioc)
+{
+ int i;
+
+ dtmprintk(ioc, pr_info(MPT3SAS_FMT
"%s: MPT3_IOC_DONE_RESET\n", ioc->name, __func__));
- for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
- if (!(ioc->diag_buffer_status[i] &
- MPT3_DIAG_BUFFER_IS_REGISTERED))
- continue;
- if ((ioc->diag_buffer_status[i] &
- MPT3_DIAG_BUFFER_IS_RELEASED))
- continue;
- ioc->diag_buffer_status[i] |=
- MPT3_DIAG_BUFFER_IS_DIAG_RESET;
- }
- break;
+ for (i = 0; i < MPI2_DIAG_BUF_TYPE_COUNT; i++) {
+ if (!(ioc->diag_buffer_status[i] &
+ MPT3_DIAG_BUFFER_IS_REGISTERED))
+ continue;
+ if ((ioc->diag_buffer_status[i] &
+ MPT3_DIAG_BUFFER_IS_RELEASED))
+ continue;
+ ioc->diag_buffer_status[i] |=
+ MPT3_DIAG_BUFFER_IS_DIAG_RESET;
}
}