scsi: aacraid: Added support for response path
This patch enables the driver to actually process the I/O, or srb replies
from adapter. In addition to any HBA1000 or SmartIOC2000 adapter events.
Signed-off-by: Raghava Aditya Renukunta <raghavaaditya.renukunta@microsemi.com>
Signed-off-by: Dave Carroll <David.Carroll@microsemi.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/aacraid/src.c b/drivers/scsi/aacraid/src.c
index a5f7a6f..5508893 100644
--- a/drivers/scsi/aacraid/src.c
+++ b/drivers/scsi/aacraid/src.c
@@ -135,8 +135,16 @@
if (mode & AAC_INT_MODE_AIF) {
/* handle AIF */
- if (dev->aif_thread && dev->fsa_dev)
- aac_intr_normal(dev, 0, 2, 0, NULL);
+ if (dev->sa_firmware) {
+ u32 events = src_readl(dev, MUnit.SCR0);
+
+ aac_intr_normal(dev, events, 1, 0, NULL);
+ writel(events, &dev->IndexRegs->Mailbox[0]);
+ src_writel(dev, MUnit.IDR, 1 << 23);
+ } else {
+ if (dev->aif_thread && dev->fsa_dev)
+ aac_intr_normal(dev, 0, 2, 0, NULL);
+ }
if (dev->msi_enabled)
aac_src_access_devreg(dev, AAC_CLEAR_AIF_BIT);
mode = 0;
@@ -148,17 +156,19 @@
for (;;) {
isFastResponse = 0;
/* remove toggle bit (31) */
- handle = (dev->host_rrq[index] & 0x7fffffff);
- /* check fast response bit (30) */
+ handle = le32_to_cpu((dev->host_rrq[index])
+ & 0x7fffffff);
+ /* check fast response bits (30, 1) */
if (handle & 0x40000000)
isFastResponse = 1;
handle &= 0x0000ffff;
if (handle == 0)
break;
+ handle >>= 2;
if (dev->msi_enabled && dev->max_msix > 1)
atomic_dec(&dev->rrq_outstanding[vector_no]);
+ aac_intr_normal(dev, handle, 0, isFastResponse, NULL);
dev->host_rrq[index++] = 0;
- aac_intr_normal(dev, handle-1, 0, isFastResponse, NULL);
if (index == (vector_no + 1) * dev->vector_cap)
index = vector_no * dev->vector_cap;
dev->host_rrq_idx[vector_no] = index;
@@ -392,6 +402,7 @@
dev->host_rrq_idx[i] = i * dev->vector_cap;
atomic_set(&dev->rrq_outstanding[i], 0);
}
+ atomic_set(&dev->msix_counter, 0);
dev->fibs_pushed_no = 0;
init = dev->init;
@@ -565,9 +576,18 @@
dev->base = dev->regs.src.bar0 = NULL;
return 0;
}
- dev->base = dev->regs.src.bar0 = ioremap(dev->base_start, size);
- if (dev->base == NULL)
+
+ dev->regs.src.bar1 =
+ ioremap(pci_resource_start(dev->pdev, 2), AAC_MIN_SRCV_BAR1_SIZE);
+ dev->base = NULL;
+ if (dev->regs.src.bar1 == NULL)
return -1;
+ dev->base = dev->regs.src.bar0 = ioremap(dev->base_start, size);
+ if (dev->base == NULL) {
+ iounmap(dev->regs.src.bar1);
+ dev->regs.src.bar1 = NULL;
+ return -1;
+ }
dev->IndexRegs = &((struct src_registers __iomem *)
dev->base)->u.denali.IndexRegs;
return 0;
@@ -918,9 +938,9 @@
if (aac_acquire_irq(dev))
goto error_iounmap;
- dev->dbg_base = dev->base_start;
- dev->dbg_base_mapped = dev->base;
- dev->dbg_size = dev->base_size;
+ dev->dbg_base = pci_resource_start(dev->pdev, 2);
+ dev->dbg_base_mapped = dev->regs.src.bar1;
+ dev->dbg_size = AAC_MIN_SRCV_BAR1_SIZE;
dev->a_ops.adapter_enable_int = aac_src_enable_interrupt_message;
aac_adapter_enable_int(dev);