Recent ISPs need only the single MMIO BAR to manipulate HW
registers. Unfortunately, ISP21xx, ISP22xx, ISP23xx, and ISP63xx
type cards still require the I/O mapped region to manipulate the
FLASH via the two HW flash-registers (flash_address and
flash_data).
Signed-off-by: Andrew Vasquez <andrew.vasquez@xxxxxxxxxx>
---
drivers/scsi/qla2xxx/qla_def.h | 1 +
drivers/scsi/qla2xxx/qla_os.c | 50 ++++++++++++++++++++++++----------------
2 files changed, 31 insertions(+), 20 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 1900fbf..04e8cbc 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2271,6 +2271,7 @@ typedef struct scsi_qla_host {
spinlock_t hardware_lock ____cacheline_aligned;
+ int bars;
device_reg_t __iomem *iobase; /* Base I/O address */
unsigned long pio_address;
unsigned long pio_length;
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 0351d38..a5bcf1f 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -1482,6 +1482,17 @@ qla2x00_iospace_config(scsi_qla_host_t *ha)
unsigned long pio, pio_len, pio_flags;
unsigned long mmio, mmio_len, mmio_flags;
+ if (pci_request_selected_regions(ha->pdev, ha->bars,
+ QLA2XXX_DRIVER_NAME)) {
+ qla_printk(KERN_WARNING, ha,
+ "Failed to reserve PIO/MMIO regions (%s)\n",
+ pci_name(ha->pdev));
+
+ goto iospace_error_exit;
+ }
+ if (!(ha->bars & 1))
+ goto skip_pio;
+
/* We only need PIO for Flash operations on ISP2312 v2 chips. */
pio = pci_resource_start(ha->pdev, 0);
pio_len = pci_resource_len(ha->pdev, 0);
@@ -1499,7 +1510,10 @@ qla2x00_iospace_config(scsi_qla_host_t *ha)
pci_name(ha->pdev));
pio = 0;
}
+ ha->pio_address = pio;
+ ha->pio_length = pio_len;
+skip_pio:
/* Use MMIO operations for all accesses. */
mmio = pci_resource_start(ha->pdev, 1);
mmio_len = pci_resource_len(ha->pdev, 1);
@@ -1518,16 +1532,6 @@ qla2x00_iospace_config(scsi_qla_host_t *ha)
goto iospace_error_exit;
}
- if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
- qla_printk(KERN_WARNING, ha,
- "Failed to reserve PIO/MMIO regions (%s)\n",
- pci_name(ha->pdev));
-
- goto iospace_error_exit;
- }
-
- ha->pio_address = pio;
- ha->pio_length = pio_len;
ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
if (!ha->iobase) {
qla_printk(KERN_ERR, ha,
@@ -1579,21 +1583,26 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
char pci_info[30];
char fw_str[30];
struct scsi_host_template *sht;
+ int bars;
- if (pci_enable_device(pdev))
- goto probe_out;
-
- if (pci_find_aer_capability(pdev))
- if (pci_enable_pcie_error_reporting(pdev))
- goto probe_out;
-
+ bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
sht = &qla2x00_driver_template;
if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
- pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532)
+ pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532) {
+ bars = pci_select_bars(pdev, IORESOURCE_MEM);
sht = &qla24xx_driver_template;
+ }
+
+ if (pci_enable_device_bars(pdev, bars))
+ goto probe_out;
+
+ if (pci_find_aer_capability(pdev))
+ if (pci_enable_pcie_error_reporting(pdev))
+ goto probe_out;
+
host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
if (host == NULL) {
printk(KERN_WARNING
@@ -1610,6 +1619,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
ha->host_no = host->host_no;
sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
ha->parent = NULL;
+ ha->bars = bars;
/* Set ISP-type information. */
qla2x00_set_isp_flags(ha);
@@ -1880,7 +1890,7 @@ qla2x00_free_device(scsi_qla_host_t *ha)
/* release io space registers */
if (ha->iobase)
iounmap(ha->iobase);
- pci_release_regions(ha->pdev);
+ pci_release_selected_regions(ha->pdev, ha->bars);
}
static inline void
@@ -2890,7 +2900,7 @@ qla2xxx_pci_slot_reset(struct pci_dev *pdev)
pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
scsi_qla_host_t *ha = pci_get_drvdata(pdev);
- if (pci_enable_device(pdev)) {
+ if (pci_enable_device_bars(pdev, ha->bars)) {
qla_printk(KERN_WARNING, ha,
"Can't re-enable PCI device after reset.\n");
--
1.5.3.4.206.g58ba4
-
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