From 4b000227535500550547313bf20e3be9083dc724 Mon Sep 17 00:00:00 2001 From: Raghava Aditya Renukunta Date: Tue, 26 Dec 2017 20:34:36 -0800 Subject: [PATCH] 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 Signed-off-by: Martin K. Petersen --- drivers/scsi/aacraid/aachba.c | 54 +++++++++++++++++++++++++++-------- 1 file changed, 42 insertions(+), 12 deletions(-) diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index 43a3c1192282..fa0132bcd2f3 100644 --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -42,6 +42,8 @@ #include /* For flush_kernel_dcache_page */ #include +#include + #include #include #include @@ -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;