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[SCSI] hpsa: make tag macros into functions

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Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Stephen M. Cameron 2010-02-04 08:42:24 -06:00 committed by James Bottomley
parent 6df1e95496
commit a104c99f38
2 changed files with 22 additions and 7 deletions
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26
drivers/scsi/hpsa.c
View file

@ -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);
}

3
drivers/scsi/hpsa.h
View file

@ -164,9 +164,6 @@ struct ctlr_info {
#define HPSA_FIRMWARE_READY 0xffff0000 /* value in scratchpad register */
#define HPSA_ERROR_BIT 0x02
#define HPSA_TAG_CONTAINS_INDEX(tag) ((tag) & 0x04)
#define HPSA_TAG_TO_INDEX(tag) ((tag) >> 3)
#define HPSA_TAG_DISCARD_ERROR_BITS(tag) ((tag) & ~3)
#define HPSA_INTR_ON 1
#define HPSA_INTR_OFF 0