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| author | Stephen M. Cameron <scameron@beardog.cce.hp.com> | 2010-02-04 15:42:24 +0100 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-02-17 20:19:25 +0100 |
| commit | a104c99f386191706a11d39be81b8f03cd4f2719 (patch) | |
| tree | 9a8a0cd868ac23eeaf45a3a1a4bf44c31cae9f72 /drivers/scsi/hpsa.c | |
| parent | [SCSI] hpsa: eliminate unnecessary memcpys (diff) | |
| download | linux-a104c99f386191706a11d39be81b8f03cd4f2719.tar.xz linux-a104c99f386191706a11d39be81b8f03cd4f2719.zip | |
[SCSI] hpsa: make tag macros into functions
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/hpsa.c')
| -rw-r--r-- | drivers/scsi/hpsa.c | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index ba3deaddf150..82987e1850a1 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -2723,6 +2723,24 @@ static inline void finish_cmd(struct CommandList *c, u32 raw_tag) complete(c->waiting); } +static inline u32 hpsa_tag_contains_index(u32 tag) +{ +#define DIRECT_LOOKUP_BIT 0x04 + return tag & DIRECT_LOOKUP_BIT; +} + +static inline u32 hpsa_tag_to_index(u32 tag) +{ +#define DIRECT_LOOKUP_SHIFT 3 + return tag >> DIRECT_LOOKUP_SHIFT; +} + +static inline u32 hpsa_tag_discard_error_bits(u32 tag) +{ +#define HPSA_ERROR_BITS 0x03 + return tag & ~HPSA_ERROR_BITS; +} + static irqreturn_t do_hpsa_intr(int irq, void *dev_id) { struct ctlr_info *h = dev_id; @@ -2736,15 +2754,15 @@ static irqreturn_t do_hpsa_intr(int irq, void *dev_id) spin_lock_irqsave(&h->lock, flags); while (interrupt_pending(h)) { while ((raw_tag = get_next_completion(h)) != FIFO_EMPTY) { - if (likely(HPSA_TAG_CONTAINS_INDEX(raw_tag))) { - tag_index = HPSA_TAG_TO_INDEX(raw_tag); + if (likely(hpsa_tag_contains_index(raw_tag))) { + tag_index = hpsa_tag_to_index(raw_tag); if (bad_tag(h, tag_index, raw_tag)) return IRQ_HANDLED; c = h->cmd_pool + tag_index; finish_cmd(c, raw_tag); continue; } - tag = HPSA_TAG_DISCARD_ERROR_BITS(raw_tag); + tag = hpsa_tag_discard_error_bits(raw_tag); c = NULL; hlist_for_each_entry(c, tmp, &h->cmpQ, list) { if (c->busaddr == tag) { @@ -2824,7 +2842,7 @@ static __devinit int hpsa_message(struct pci_dev *pdev, unsigned char opcode, for (i = 0; i < HPSA_MSG_SEND_RETRY_LIMIT; i++) { tag = readl(vaddr + SA5_REPLY_PORT_OFFSET); - if (HPSA_TAG_DISCARD_ERROR_BITS(tag) == paddr32) + if (hpsa_tag_discard_error_bits(tag) == paddr32) break; msleep(HPSA_MSG_SEND_RETRY_INTERVAL_MSECS); } |