This code refactoring introduces function pointers.
Host uses Request Descriptors of different types for posting an entry
onto a request queue. Based on controller type and capabilities,
host can also use atomic descriptors other than normal
descriptors.
Using function pointer will avoid if-else statements
Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@xxxxxxxxxxxx>
---
drivers/scsi/mpt3sas/mpt3sas_base.c | 38 +++++++++++++-----------
drivers/scsi/mpt3sas/mpt3sas_base.h | 3 ++
drivers/scsi/mpt3sas/mpt3sas_config.c | 2 +-
drivers/scsi/mpt3sas/mpt3sas_ctl.c | 20 ++++++-------
drivers/scsi/mpt3sas/mpt3sas_scsih.c | 20 ++++++-------
drivers/scsi/mpt3sas/mpt3sas_transport.c | 8 ++---
6 files changed, 49 insertions(+), 42 deletions(-)
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c
index 8aacbd1..ab0392a 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.c
@@ -1282,7 +1282,7 @@ _base_async_event(struct MPT3SAS_ADAPTER *ioc, u8 msix_index, u32 reply)
ack_request->EventContext = mpi_reply->EventContext;
ack_request->VF_ID = 0; /* TODO */
ack_request->VP_ID = 0;
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
out:
@@ -3485,7 +3485,8 @@ _base_writeq(__u64 b, volatile void __iomem *addr, spinlock_t *writeq_lock)
* @handle: device handle
*/
static void
-_base_put_smid_mpi_ep_scsi_io(struct MPT3SAS_ADAPTER *ioc, u16 smid, u16 handle)
+_base_put_smid_mpi_ep_scsi_io(struct MPT3SAS_ADAPTER *ioc,
+ u16 smid, u16 handle)
{
Mpi2RequestDescriptorUnion_t descriptor;
u64 *request = (u64 *)&descriptor;
@@ -3529,13 +3530,13 @@ _base_put_smid_scsi_io(struct MPT3SAS_ADAPTER *ioc, u16 smid, u16 handle)
}
/**
- * mpt3sas_base_put_smid_fast_path - send fast path request to firmware
+ * _base_put_smid_fast_path - send fast path request to firmware
* @ioc: per adapter object
* @smid: system request message index
* @handle: device handle
*/
-void
-mpt3sas_base_put_smid_fast_path(struct MPT3SAS_ADAPTER *ioc, u16 smid,
+static void
+_base_put_smid_fast_path(struct MPT3SAS_ADAPTER *ioc, u16 smid,
u16 handle)
{
Mpi2RequestDescriptorUnion_t descriptor;
@@ -3552,13 +3553,13 @@ mpt3sas_base_put_smid_fast_path(struct MPT3SAS_ADAPTER *ioc, u16 smid,
}
/**
- * mpt3sas_base_put_smid_hi_priority - send Task Management request to firmware
+ * _base_put_smid_hi_priority - send Task Management request to firmware
* @ioc: per adapter object
* @smid: system request message index
* @msix_task: msix_task will be same as msix of IO incase of task abort else 0.
*/
-void
-mpt3sas_base_put_smid_hi_priority(struct MPT3SAS_ADAPTER *ioc, u16 smid,
+static void
+_base_put_smid_hi_priority(struct MPT3SAS_ADAPTER *ioc, u16 smid,
u16 msix_task)
{
Mpi2RequestDescriptorUnion_t descriptor;
@@ -3616,12 +3617,12 @@ mpt3sas_base_put_smid_nvme_encap(struct MPT3SAS_ADAPTER *ioc, u16 smid)
}
/**
- * mpt3sas_base_put_smid_default - Default, primarily used for config pages
+ * _base_put_smid_default - Default, primarily used for config pages
* @ioc: per adapter object
* @smid: system request message index
*/
-void
-mpt3sas_base_put_smid_default(struct MPT3SAS_ADAPTER *ioc, u16 smid)
+static void
+_base_put_smid_default(struct MPT3SAS_ADAPTER *ioc, u16 smid)
{
Mpi2RequestDescriptorUnion_t descriptor;
void *mpi_req_iomem;
@@ -3952,7 +3953,7 @@ _base_display_fwpkg_version(struct MPT3SAS_ADAPTER *ioc)
ioc->build_sg(ioc, &mpi_request->SGL, 0, 0, fwpkg_data_dma,
data_length);
init_completion(&ioc->base_cmds.done);
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
/* Wait for 15 seconds */
wait_for_completion_timeout(&ioc->base_cmds.done,
FW_IMG_HDR_READ_TIMEOUT*HZ);
@@ -5431,7 +5432,7 @@ mpt3sas_base_sas_iounit_control(struct MPT3SAS_ADAPTER *ioc,
mpi_request->Operation == MPI2_SAS_OP_PHY_LINK_RESET)
ioc->ioc_link_reset_in_progress = 1;
init_completion(&ioc->base_cmds.done);
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
wait_for_completion_timeout(&ioc->base_cmds.done,
msecs_to_jiffies(10000));
if ((mpi_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET ||
@@ -5510,7 +5511,7 @@ mpt3sas_base_scsi_enclosure_processor(struct MPT3SAS_ADAPTER *ioc,
ioc->base_cmds.smid = smid;
memcpy(request, mpi_request, sizeof(Mpi2SepReply_t));
init_completion(&ioc->base_cmds.done);
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
wait_for_completion_timeout(&ioc->base_cmds.done,
msecs_to_jiffies(10000));
if (!(ioc->base_cmds.status & MPT3_CMD_COMPLETE)) {
@@ -5914,7 +5915,7 @@ _base_send_port_enable(struct MPT3SAS_ADAPTER *ioc)
mpi_request->Function = MPI2_FUNCTION_PORT_ENABLE;
init_completion(&ioc->port_enable_cmds.done);
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
wait_for_completion_timeout(&ioc->port_enable_cmds.done, 300*HZ);
if (!(ioc->port_enable_cmds.status & MPT3_CMD_COMPLETE)) {
ioc_err(ioc, "%s: timeout\n", __func__);
@@ -5973,7 +5974,7 @@ mpt3sas_port_enable(struct MPT3SAS_ADAPTER *ioc)
memset(mpi_request, 0, sizeof(Mpi2PortEnableRequest_t));
mpi_request->Function = MPI2_FUNCTION_PORT_ENABLE;
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
return 0;
}
@@ -6089,7 +6090,7 @@ _base_event_notification(struct MPT3SAS_ADAPTER *ioc)
mpi_request->EventMasks[i] =
cpu_to_le32(ioc->event_masks[i]);
init_completion(&ioc->base_cmds.done);
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
wait_for_completion_timeout(&ioc->base_cmds.done, 30*HZ);
if (!(ioc->base_cmds.status & MPT3_CMD_COMPLETE)) {
ioc_err(ioc, "%s: timeout\n", __func__);
@@ -6587,6 +6588,9 @@ mpt3sas_base_attach(struct MPT3SAS_ADAPTER *ioc)
break;
}
+ ioc->put_smid_default = &_base_put_smid_default;
+ ioc->put_smid_fast_path = &_base_put_smid_fast_path;
+ ioc->put_smid_hi_priority = &_base_put_smid_hi_priority;
if (ioc->is_mcpu_endpoint)
ioc->put_smid_scsi_io = &_base_put_smid_mpi_ep_scsi_io;
else
diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h
index 480219f..d3f3c37 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_base.h
+++ b/drivers/scsi/mpt3sas/mpt3sas_base.h
@@ -1422,6 +1422,9 @@ struct MPT3SAS_ADAPTER {
u8 is_gen35_ioc;
u8 is_aero_ioc;
PUT_SMID_IO_FP_HIP put_smid_scsi_io;
+ PUT_SMID_IO_FP_HIP put_smid_fast_path;
+ PUT_SMID_IO_FP_HIP put_smid_hi_priority;
+ PUT_SMID_DEFAULT put_smid_default;
};
diff --git a/drivers/scsi/mpt3sas/mpt3sas_config.c b/drivers/scsi/mpt3sas/mpt3sas_config.c
index fb0a172..b18cbbc 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_config.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_config.c
@@ -380,7 +380,7 @@ _config_request(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigRequest_t
memcpy(config_request, mpi_request, sizeof(Mpi2ConfigRequest_t));
_config_display_some_debug(ioc, smid, "config_request", NULL);
init_completion(&ioc->config_cmds.done);
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
wait_for_completion_timeout(&ioc->config_cmds.done, timeout*HZ);
if (!(ioc->config_cmds.status & MPT3_CMD_COMPLETE)) {
mpt3sas_base_check_cmd_timeout(ioc,
diff --git a/drivers/scsi/mpt3sas/mpt3sas_ctl.c b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
index 5181c03..b5cae58 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_ctl.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_ctl.c
@@ -822,7 +822,7 @@ _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg,
if (mpi_request->Function == MPI2_FUNCTION_SCSI_IO_REQUEST)
ioc->put_smid_scsi_io(ioc, smid, device_handle);
else
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
break;
}
case MPI2_FUNCTION_SCSI_TASK_MGMT:
@@ -859,7 +859,7 @@ _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg,
tm_request->DevHandle));
ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
data_in_dma, data_in_sz);
- mpt3sas_base_put_smid_hi_priority(ioc, smid, 0);
+ ioc->put_smid_hi_priority(ioc, smid, 0);
break;
}
case MPI2_FUNCTION_SMP_PASSTHROUGH:
@@ -890,7 +890,7 @@ _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg,
}
ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
data_in_sz);
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
break;
}
case MPI2_FUNCTION_SATA_PASSTHROUGH:
@@ -905,7 +905,7 @@ _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg,
}
ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
data_in_sz);
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
break;
}
case MPI2_FUNCTION_FW_DOWNLOAD:
@@ -913,7 +913,7 @@ _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg,
{
ioc->build_sg(ioc, psge, data_out_dma, data_out_sz, data_in_dma,
data_in_sz);
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
break;
}
case MPI2_FUNCTION_TOOLBOX:
@@ -928,7 +928,7 @@ _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg,
ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
data_in_dma, data_in_sz);
}
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
break;
}
case MPI2_FUNCTION_SAS_IO_UNIT_CONTROL:
@@ -948,7 +948,7 @@ _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg,
default:
ioc->build_sg_mpi(ioc, psge, data_out_dma, data_out_sz,
data_in_dma, data_in_sz);
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
break;
}
@@ -1576,7 +1576,7 @@ _ctl_diag_register_2(struct MPT3SAS_ADAPTER *ioc,
cpu_to_le32(ioc->product_specific[buffer_type][i]);
init_completion(&ioc->ctl_cmds.done);
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
wait_for_completion_timeout(&ioc->ctl_cmds.done,
MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
@@ -1903,7 +1903,7 @@ mpt3sas_send_diag_release(struct MPT3SAS_ADAPTER *ioc, u8 buffer_type,
mpi_request->VP_ID = 0;
init_completion(&ioc->ctl_cmds.done);
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
wait_for_completion_timeout(&ioc->ctl_cmds.done,
MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
@@ -2151,7 +2151,7 @@ _ctl_diag_read_buffer(struct MPT3SAS_ADAPTER *ioc, void __user *arg)
mpi_request->VP_ID = 0;
init_completion(&ioc->ctl_cmds.done);
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
wait_for_completion_timeout(&ioc->ctl_cmds.done,
MPT3_IOCTL_DEFAULT_TIMEOUT*HZ);
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index 1ccfbc7..1008c5e 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -2685,7 +2685,7 @@ mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, u64 lun,
int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN);
mpt3sas_scsih_set_tm_flag(ioc, handle);
init_completion(&ioc->tm_cmds.done);
- mpt3sas_base_put_smid_hi_priority(ioc, smid, msix_task);
+ ioc->put_smid_hi_priority(ioc, smid, msix_task);
wait_for_completion_timeout(&ioc->tm_cmds.done, timeout*HZ);
if (!(ioc->tm_cmds.status & MPT3_CMD_COMPLETE)) {
if (mpt3sas_base_check_cmd_timeout(ioc,
@@ -3659,7 +3659,7 @@ _scsih_tm_tr_send(struct MPT3SAS_ADAPTER *ioc, u16 handle)
mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
mpi_request->MsgFlags = tr_method;
set_bit(handle, ioc->device_remove_in_progress);
- mpt3sas_base_put_smid_hi_priority(ioc, smid, 0);
+ ioc->put_smid_hi_priority(ioc, smid, 0);
mpt3sas_trigger_master(ioc, MASTER_TRIGGER_DEVICE_REMOVAL);
out:
@@ -3755,7 +3755,7 @@ _scsih_tm_tr_complete(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index,
mpi_request->Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
mpi_request->Operation = MPI2_SAS_OP_REMOVE_DEVICE;
mpi_request->DevHandle = mpi_request_tm->DevHandle;
- mpt3sas_base_put_smid_default(ioc, smid_sas_ctrl);
+ ioc->put_smid_default(ioc, smid_sas_ctrl);
return _scsih_check_for_pending_tm(ioc, smid);
}
@@ -3881,7 +3881,7 @@ _scsih_tm_tr_volume_send(struct MPT3SAS_ADAPTER *ioc, u16 handle)
mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
mpi_request->DevHandle = cpu_to_le16(handle);
mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
- mpt3sas_base_put_smid_hi_priority(ioc, smid, 0);
+ ioc->put_smid_hi_priority(ioc, smid, 0);
}
/**
@@ -3970,7 +3970,7 @@ _scsih_issue_delayed_event_ack(struct MPT3SAS_ADAPTER *ioc, u16 smid, U16 event,
ack_request->EventContext = event_context;
ack_request->VF_ID = 0; /* TODO */
ack_request->VP_ID = 0;
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
}
/**
@@ -4026,7 +4026,7 @@ _scsih_issue_delayed_sas_io_unit_ctrl(struct MPT3SAS_ADAPTER *ioc,
mpi_request->Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
mpi_request->Operation = MPI2_SAS_OP_REMOVE_DEVICE;
mpi_request->DevHandle = cpu_to_le16(handle);
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
}
/**
@@ -4734,12 +4734,12 @@ scsih_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
if (sas_target_priv_data->flags & MPT_TARGET_FASTPATH_IO) {
mpi_request->IoFlags = cpu_to_le16(scmd->cmd_len |
MPI25_SCSIIO_IOFLAGS_FAST_PATH);
- mpt3sas_base_put_smid_fast_path(ioc, smid, handle);
+ ioc->put_smid_fast_path(ioc, smid, handle);
} else
ioc->put_smid_scsi_io(ioc, smid,
le16_to_cpu(mpi_request->DevHandle));
} else
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
return 0;
out:
@@ -7601,7 +7601,7 @@ _scsih_ir_fastpath(struct MPT3SAS_ADAPTER *ioc, u16 handle, u8 phys_disk_num)
handle, phys_disk_num));
init_completion(&ioc->scsih_cmds.done);
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ);
if (!(ioc->scsih_cmds.status & MPT3_CMD_COMPLETE)) {
@@ -9633,7 +9633,7 @@ _scsih_ir_shutdown(struct MPT3SAS_ADAPTER *ioc)
if (!ioc->hide_ir_msg)
ioc_info(ioc, "IR shutdown (sending)\n");
init_completion(&ioc->scsih_cmds.done);
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
wait_for_completion_timeout(&ioc->scsih_cmds.done, 10*HZ);
if (!(ioc->scsih_cmds.status & MPT3_CMD_COMPLETE)) {
diff --git a/drivers/scsi/mpt3sas/mpt3sas_transport.c b/drivers/scsi/mpt3sas/mpt3sas_transport.c
index 60ae2d0..5324662 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_transport.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_transport.c
@@ -367,7 +367,7 @@ _transport_expander_report_manufacture(struct MPT3SAS_ADAPTER *ioc,
ioc_info(ioc, "report_manufacture - send to sas_addr(0x%016llx)\n",
(u64)sas_address));
init_completion(&ioc->transport_cmds.done);
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
wait_for_completion_timeout(&ioc->transport_cmds.done, 10*HZ);
if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) {
@@ -1139,7 +1139,7 @@ _transport_get_expander_phy_error_log(struct MPT3SAS_ADAPTER *ioc,
(u64)phy->identify.sas_address,
phy->number));
init_completion(&ioc->transport_cmds.done);
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
wait_for_completion_timeout(&ioc->transport_cmds.done, 10*HZ);
if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) {
@@ -1434,7 +1434,7 @@ _transport_expander_phy_control(struct MPT3SAS_ADAPTER *ioc,
(u64)phy->identify.sas_address,
phy->number, phy_operation));
init_completion(&ioc->transport_cmds.done);
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
wait_for_completion_timeout(&ioc->transport_cmds.done, 10*HZ);
if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) {
@@ -1911,7 +1911,7 @@ _transport_smp_handler(struct bsg_job *job, struct Scsi_Host *shost,
ioc_info(ioc, "%s: sending smp request\n", __func__));
init_completion(&ioc->transport_cmds.done);
- mpt3sas_base_put_smid_default(ioc, smid);
+ ioc->put_smid_default(ioc, smid);
wait_for_completion_timeout(&ioc->transport_cmds.done, 10*HZ);
if (!(ioc->transport_cmds.status & MPT3_CMD_COMPLETE)) {
--
2.18.1
