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scsi: aacraid: Create helper functions to get lun info 

Created inline function to retrieve lun info for each device from the
phy luns structure.

Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
hifive-unleashed-5.1
Raghava Aditya Renukunta 2017-12-26 20:34:36 -08:00 committed by Martin K. Petersen
parent a25b6ca1a9
commit 4b00022753
1 changed files with 42 additions and 12 deletions
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54
drivers/scsi/aacraid/aachba.c
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@ -42,6 +42,8 @@
#include <linux/highmem.h> /* For flush_kernel_dcache_page */
#include <linux/module.h>
#include <asm/unaligned.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
@ -1844,7 +1846,41 @@ out:
mem_free_all:
kfree(phys_luns);
goto out;
}
static inline u32 aac_get_safw_phys_lun_count(struct aac_dev *dev)
{
return get_unaligned_be32(&dev->safw_phys_luns->list_length[0]);
}
static inline u32 aac_get_safw_phys_bus(struct aac_dev *dev, int lun)
{
return dev->safw_phys_luns->lun[lun].level2[1] & 0x3f;
}
static inline u32 aac_get_safw_phys_target(struct aac_dev *dev, int lun)
{
return dev->safw_phys_luns->lun[lun].level2[0];
}
static inline u32 aac_get_safw_phys_expose_flag(struct aac_dev *dev, int lun)
{
return dev->safw_phys_luns->lun[lun].bus >> 6;
}
static inline u32 aac_get_safw_phys_attribs(struct aac_dev *dev, int lun)
{
return dev->safw_phys_luns->lun[lun].node_ident[9];
}
static inline u32 aac_get_safw_phys_nexus(struct aac_dev *dev, int lun)
{
return *((u32 *)&dev->safw_phys_luns->lun[lun].node_ident[12]);
}
static inline u32 aac_get_safw_phys_device_type(struct aac_dev *dev, int lun)
{
return dev->safw_phys_luns->lun[lun].node_ident[8];
}
/**
@ -1862,22 +1898,16 @@ static void aac_set_safw_attr_all_targets(struct aac_dev *dev, int rescan)
u32 i, bus, target;
u8 expose_flag, attribs;
u8 devtype;
struct aac_ciss_phys_luns_resp *phys_luns;
phys_luns = dev->safw_phys_luns;
lun_count = ((phys_luns->list_length[0] << 24)
+ (phys_luns->list_length[1] << 16)
+ (phys_luns->list_length[2] << 8)
+ (phys_luns->list_length[3])) / 24;
lun_count = aac_get_safw_phys_lun_count(dev);
for (i = 0; i < lun_count; ++i) {
bus = phys_luns->lun[i].level2[1] & 0x3f;
target = phys_luns->lun[i].level2[0];
expose_flag = phys_luns->lun[i].bus >> 6;
attribs = phys_luns->lun[i].node_ident[9];
nexus = *((u32 *) &phys_luns->lun[i].node_ident[12]);
bus = aac_get_safw_phys_bus(dev, i);
target = aac_get_safw_phys_target(dev, i);
expose_flag = aac_get_safw_phys_expose_flag(dev, i);
attribs = aac_get_safw_phys_attribs(dev, i);
nexus = aac_get_safw_phys_nexus(dev, i);
if (bus >= AAC_MAX_BUSES || target >= AAC_MAX_TARGETS)
continue;