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sata_fsl: Add asynchronous notification support 

Enable device hot-plug support on Port multiplier fan-out ports

Signed-off-by: Ashish Kalra <Ashish.Kalra@freescale.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
ashish kalra 2009-07-01 20:59:43 +05:30 committed by Jeff Garzik
parent 10a9c96922
commit fd6c29e3de
1 changed files with 10 additions and 8 deletions
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18
drivers/ata/sata_fsl.c
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@ -34,7 +34,7 @@ enum {
SATA_FSL_HOST_FLAGS = (ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA |
ATA_FLAG_PMP | ATA_FLAG_NCQ),
ATA_FLAG_PMP | ATA_FLAG_NCQ | ATA_FLAG_AN),
SATA_FSL_MAX_CMDS = SATA_FSL_QUEUE_DEPTH,
SATA_FSL_CMD_HDR_SIZE = 16, /* 4 DWORDS */
@ -132,7 +132,7 @@ enum {
INT_ON_SINGL_DEVICE_ERR = (1 << 1),
INT_ON_CMD_COMPLETE = 1,
INT_ON_ERROR = INT_ON_FATAL_ERR |
INT_ON_ERROR = INT_ON_FATAL_ERR | INT_ON_SNOTIFY_UPDATE |
INT_ON_PHYRDY_CHG | INT_ON_SINGL_DEVICE_ERR,
/*
@ -153,7 +153,7 @@ enum {
IE_ON_CMD_COMPLETE = 1,
DEFAULT_PORT_IRQ_ENABLE_MASK = IE_ON_FATAL_ERR | IE_ON_PHYRDY_CHG |
IE_ON_SIGNATURE_UPDATE |
IE_ON_SIGNATURE_UPDATE | IE_ON_SNOTIFY_UPDATE |
IE_ON_SINGL_DEVICE_ERR | IE_ON_CMD_COMPLETE,
EXT_INDIRECT_SEG_PRD_FLAG = (1 << 31),
@ -992,9 +992,8 @@ static void sata_fsl_error_intr(struct ata_port *ap)
*/
sata_fsl_scr_read(&ap->link, SCR_ERROR, &SError);
if (unlikely(SError & 0xFFFF0000)) {
if (unlikely(SError & 0xFFFF0000))
sata_fsl_scr_write(&ap->link, SCR_ERROR, SError);
}
DPRINTK("error_intr,hStat=0x%x,CE=0x%x,DE =0x%x,SErr=0x%x\n",
hstatus, cereg, ioread32(hcr_base + DE), SError);
@ -1007,6 +1006,10 @@ static void sata_fsl_error_intr(struct ata_port *ap)
freeze = 1;
}
/* Handle SDB FIS receive & notify update */
if (hstatus & INT_ON_SNOTIFY_UPDATE)
sata_async_notification(ap);
/* Handle PHYRDY change notification */
if (hstatus & INT_ON_PHYRDY_CHG) {
DPRINTK("SATA FSL: PHYRDY change indication\n");
@ -1070,9 +1073,9 @@ static void sata_fsl_error_intr(struct ata_port *ap)
}
/* record error info */
if (qc) {
if (qc)
qc->err_mask |= err_mask;
} else
else
ehi->err_mask |= err_mask;
ehi->action |= action;
@ -1103,7 +1106,6 @@ static void sata_fsl_host_intr(struct ata_port *ap)
if (unlikely(SError & 0xFFFF0000)) {
DPRINTK("serror @host_intr : 0x%x\n", SError);
sata_fsl_error_intr(ap);
}
if (unlikely(hstatus & INT_ON_ERROR)) {