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author | Herbert Xu <herbert@gondor.apana.org.au> | 2010-05-26 05:36:58 +0400 |
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committer | Herbert Xu <herbert@gondor.apana.org.au> | 2010-05-26 05:36:58 +0400 |
commit | 50d1e9302bab7d35dae7146f8c468e0943015616 (patch) | |
tree | fa05320f4a297bd582686574cf94ba444e264b3f /drivers/ata/sata_qstor.c | |
parent | 7cc2835083aedfde42de02301005a5555e00c4b1 (diff) | |
parent | dc4ccfd15d4fc7a91ddf222bc5eed5cc4bcf10e6 (diff) | |
download | linux-50d1e9302bab7d35dae7146f8c468e0943015616.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/crypto-2.6
Diffstat (limited to 'drivers/ata/sata_qstor.c')
-rw-r--r-- | drivers/ata/sata_qstor.c | 90 |
1 files changed, 39 insertions, 51 deletions
diff --git a/drivers/ata/sata_qstor.c b/drivers/ata/sata_qstor.c index 92ba45e6689b..d533b3d20ca1 100644 --- a/drivers/ata/sata_qstor.c +++ b/drivers/ata/sata_qstor.c @@ -147,7 +147,6 @@ static struct ata_port_operations qs_ata_ops = { .prereset = qs_prereset, .softreset = ATA_OP_NULL, .error_handler = qs_error_handler, - .post_internal_cmd = ATA_OP_NULL, .lost_interrupt = ATA_OP_NULL, .scr_read = qs_scr_read, @@ -255,7 +254,7 @@ static int qs_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val) static void qs_error_handler(struct ata_port *ap) { qs_enter_reg_mode(ap); - ata_std_error_handler(ap); + ata_sff_error_handler(ap); } static int qs_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val) @@ -304,10 +303,8 @@ static void qs_qc_prep(struct ata_queued_cmd *qc) VPRINTK("ENTER\n"); qs_enter_reg_mode(qc->ap); - if (qc->tf.protocol != ATA_PROT_DMA) { - ata_sff_qc_prep(qc); + if (qc->tf.protocol != ATA_PROT_DMA) return; - } nelem = qs_fill_sg(qc); @@ -404,26 +401,24 @@ static inline unsigned int qs_intr_pkt(struct ata_host *host) u8 sHST = sff1 & 0x3f; /* host status */ unsigned int port_no = (sff1 >> 8) & 0x03; struct ata_port *ap = host->ports[port_no]; + struct qs_port_priv *pp = ap->private_data; + struct ata_queued_cmd *qc; DPRINTK("SFF=%08x%08x: sCHAN=%u sHST=%d sDST=%02x\n", sff1, sff0, port_no, sHST, sDST); handled = 1; - if (ap && !(ap->flags & ATA_FLAG_DISABLED)) { - struct ata_queued_cmd *qc; - struct qs_port_priv *pp = ap->private_data; - if (!pp || pp->state != qs_state_pkt) - continue; - qc = ata_qc_from_tag(ap, ap->link.active_tag); - if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING))) { - switch (sHST) { - case 0: /* successful CPB */ - case 3: /* device error */ - qs_enter_reg_mode(qc->ap); - qs_do_or_die(qc, sDST); - break; - default: - break; - } + if (!pp || pp->state != qs_state_pkt) + continue; + qc = ata_qc_from_tag(ap, ap->link.active_tag); + if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING))) { + switch (sHST) { + case 0: /* successful CPB */ + case 3: /* device error */ + qs_enter_reg_mode(qc->ap); + qs_do_or_die(qc, sDST); + break; + default: + break; } } } @@ -436,33 +431,30 @@ static inline unsigned int qs_intr_mmio(struct ata_host *host) unsigned int handled = 0, port_no; for (port_no = 0; port_no < host->n_ports; ++port_no) { - struct ata_port *ap; - ap = host->ports[port_no]; - if (ap && - !(ap->flags & ATA_FLAG_DISABLED)) { - struct ata_queued_cmd *qc; - struct qs_port_priv *pp; - qc = ata_qc_from_tag(ap, ap->link.active_tag); - if (!qc || !(qc->flags & ATA_QCFLAG_ACTIVE)) { - /* - * The qstor hardware generates spurious - * interrupts from time to time when switching - * in and out of packet mode. - * There's no obvious way to know if we're - * here now due to that, so just ack the irq - * and pretend we knew it was ours.. (ugh). - * This does not affect packet mode. - */ - ata_sff_check_status(ap); - handled = 1; - continue; - } - pp = ap->private_data; - if (!pp || pp->state != qs_state_mmio) - continue; - if (!(qc->tf.flags & ATA_TFLAG_POLLING)) - handled |= ata_sff_host_intr(ap, qc); + struct ata_port *ap = host->ports[port_no]; + struct qs_port_priv *pp = ap->private_data; + struct ata_queued_cmd *qc; + + qc = ata_qc_from_tag(ap, ap->link.active_tag); + if (!qc) { + /* + * The qstor hardware generates spurious + * interrupts from time to time when switching + * in and out of packet mode. There's no + * obvious way to know if we're here now due + * to that, so just ack the irq and pretend we + * knew it was ours.. (ugh). This does not + * affect packet mode. + */ + ata_sff_check_status(ap); + handled = 1; + continue; } + + if (!pp || pp->state != qs_state_mmio) + continue; + if (!(qc->tf.flags & ATA_TFLAG_POLLING)) + handled |= ata_sff_host_intr(ap, qc); } return handled; } @@ -509,11 +501,7 @@ static int qs_port_start(struct ata_port *ap) void __iomem *mmio_base = qs_mmio_base(ap->host); void __iomem *chan = mmio_base + (ap->port_no * 0x4000); u64 addr; - int rc; - rc = ata_port_start(ap); - if (rc) - return rc; pp = devm_kzalloc(dev, sizeof(*pp), GFP_KERNEL); if (!pp) return -ENOMEM; |