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ahci: use shorter variables

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Trivial cleanup that I didn't want to tack-on to anything else.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1435016308-6150-3-git-send-email-jsnow@redhat.com
This commit is contained in:
John Snow 2015-07-04 02:06:03 -04:00
parent 7763ed1506
commit b6fe41fa6d
1 changed files with 10 additions and 8 deletions
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18
hw/ide/ahci.c
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@ -972,9 +972,11 @@ static int is_ncq(uint8_t ata_cmd)
static void process_ncq_command(AHCIState *s, int port, uint8_t *cmd_fis,
int slot)
{
AHCIDevice *ad = &s->dev[port];
IDEState *ide_state = &ad->port.ifs[0];
NCQFrame *ncq_fis = (NCQFrame*)cmd_fis;
uint8_t tag = ncq_fis->tag >> 3;
NCQTransferState *ncq_tfs = &s->dev[port].ncq_tfs[tag];
NCQTransferState *ncq_tfs = &ad->ncq_tfs[tag];
if (ncq_tfs->used) {
/* error - already in use */
@ -983,7 +985,7 @@ static void process_ncq_command(AHCIState *s, int port, uint8_t *cmd_fis,
}
ncq_tfs->used = 1;
ncq_tfs->drive = &s->dev[port];
ncq_tfs->drive = ad;
ncq_tfs->slot = slot;
ncq_tfs->lba = ((uint64_t)ncq_fis->lba5 << 40) |
((uint64_t)ncq_fis->lba4 << 32) |
@ -1000,9 +1002,9 @@ static void process_ncq_command(AHCIState *s, int port, uint8_t *cmd_fis,
DPRINTF(port, "NCQ transfer LBA from %"PRId64" to %"PRId64", "
"drive max %"PRId64"\n",
ncq_tfs->lba, ncq_tfs->lba + ncq_tfs->sector_count - 2,
s->dev[port].port.ifs[0].nb_sectors - 1);
ide_state->nb_sectors - 1);
ahci_populate_sglist(&s->dev[port], &ncq_tfs->sglist, 0);
ahci_populate_sglist(ad, &ncq_tfs->sglist, 0);
ncq_tfs->tag = tag;
switch(ncq_fis->command) {
@ -1014,9 +1016,9 @@ static void process_ncq_command(AHCIState *s, int port, uint8_t *cmd_fis,
DPRINTF(port, "tag %d aio read %"PRId64"\n",
ncq_tfs->tag, ncq_tfs->lba);
dma_acct_start(ncq_tfs->drive->port.ifs[0].blk, &ncq_tfs->acct,
dma_acct_start(ide_state->blk, &ncq_tfs->acct,
&ncq_tfs->sglist, BLOCK_ACCT_READ);
ncq_tfs->aiocb = dma_blk_read(ncq_tfs->drive->port.ifs[0].blk,
ncq_tfs->aiocb = dma_blk_read(ide_state->blk,
&ncq_tfs->sglist, ncq_tfs->lba,
ncq_cb, ncq_tfs);
break;
@ -1027,9 +1029,9 @@ static void process_ncq_command(AHCIState *s, int port, uint8_t *cmd_fis,
DPRINTF(port, "tag %d aio write %"PRId64"\n",
ncq_tfs->tag, ncq_tfs->lba);
dma_acct_start(ncq_tfs->drive->port.ifs[0].blk, &ncq_tfs->acct,
dma_acct_start(ide_state->blk, &ncq_tfs->acct,
&ncq_tfs->sglist, BLOCK_ACCT_WRITE);
ncq_tfs->aiocb = dma_blk_write(ncq_tfs->drive->port.ifs[0].blk,
ncq_tfs->aiocb = dma_blk_write(ide_state->blk,
&ncq_tfs->sglist, ncq_tfs->lba,
ncq_cb, ncq_tfs);
break;