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| author | Matthew R. Ochs <mrochs@linux.vnet.ibm.com> | 2017-04-12 21:14:28 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-04-14 04:55:41 +0200 |
| commit | 565180723294b06b3e60030033847277b9d6d4bb (patch) | |
| tree | fb67453a83342506a408dd6a5752c28e3304f759 /drivers/scsi/cxlflash/common.h | |
| parent | scsi: cxlflash: Hide FC internals behind common access routine (diff) | |
| download | linux-565180723294b06b3e60030033847277b9d6d4bb.tar.xz linux-565180723294b06b3e60030033847277b9d6d4bb.zip | |
scsi: cxlflash: SISlite updates to support 4 ports
Update the SISlite header to support 4 ports as outlined in the SISlite
specification. Address fallout from structure renames and refreshed
organization throughout the driver. Determine the number of ports supported by
a card from the global port selection mask register reset value.
Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/cxlflash/common.h')
| -rw-r--r-- | drivers/scsi/cxlflash/common.h | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/drivers/scsi/cxlflash/common.h b/drivers/scsi/cxlflash/common.h index e6a7c975c0dc..28bb716e78fe 100644 --- a/drivers/scsi/cxlflash/common.h +++ b/drivers/scsi/cxlflash/common.h @@ -26,8 +26,11 @@ extern const struct file_operations cxlflash_cxl_fops; #define MAX_CONTEXT CXLFLASH_MAX_CONTEXT /* num contexts per afu */ -#define NUM_FC_PORTS CXLFLASH_NUM_FC_PORTS /* ports per AFU */ -#define MAX_FC_PORTS CXLFLASH_MAX_FC_PORTS /* ports per AFU */ +#define MAX_FC_PORTS CXLFLASH_MAX_FC_PORTS /* max ports per AFU */ +#define LEGACY_FC_PORTS 2 /* legacy ports per AFU */ + +#define CHAN2PORTBANK(_x) ((_x) >> ilog2(CXLFLASH_NUM_FC_PORTS_PER_BANK)) +#define CHAN2BANKPORT(_x) ((_x) & (CXLFLASH_NUM_FC_PORTS_PER_BANK - 1)) #define CHAN2PORTMASK(_x) (1 << (_x)) /* channel to port mask */ #define PORTMASK2CHAN(_x) (ilog2((_x))) /* port mask to channel */ @@ -67,7 +70,7 @@ extern const struct file_operations cxlflash_cxl_fops; static inline void check_sizes(void) { - BUILD_BUG_ON_NOT_POWER_OF_2(CXLFLASH_NUM_CMDS); + BUILD_BUG_ON_NOT_POWER_OF_2(CXLFLASH_NUM_FC_PORTS_PER_BANK); } /* AFU defines a fixed size of 4K for command buffers (borrow 4K page define) */ @@ -240,18 +243,26 @@ static inline u64 lun_to_lunid(u64 lun) return be64_to_cpu(lun_id); } -static inline __be64 __iomem *get_fc_port_regs(struct cxlflash_cfg *cfg, int i) +static inline struct fc_port_bank __iomem *get_fc_port_bank( + struct cxlflash_cfg *cfg, int i) { struct afu *afu = cfg->afu; - return &afu->afu_map->global.fc_regs[i][0]; + return &afu->afu_map->global.bank[CHAN2PORTBANK(i)]; +} + +static inline __be64 __iomem *get_fc_port_regs(struct cxlflash_cfg *cfg, int i) +{ + struct fc_port_bank __iomem *fcpb = get_fc_port_bank(cfg, i); + + return &fcpb->fc_port_regs[CHAN2BANKPORT(i)][0]; } static inline __be64 __iomem *get_fc_port_luns(struct cxlflash_cfg *cfg, int i) { - struct afu *afu = cfg->afu; + struct fc_port_bank __iomem *fcpb = get_fc_port_bank(cfg, i); - return &afu->afu_map->global.fc_port[i][0]; + return &fcpb->fc_port_luns[CHAN2BANKPORT(i)][0]; } int cxlflash_afu_sync(struct afu *, ctx_hndl_t, res_hndl_t, u8); |