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Subject[PATCH v3 28/32] PCI/qla: use PCIe capabilities access functions to simplify implementation
Date
From: Jiang Liu <jiang.liu@huawei.com>

Use PCIe capabilities access functions to simplify QLA SCSI drivers'
implementation.

Signed-off-by: Jiang Liu <liuj97@gmail.com>
---
drivers/scsi/qla2xxx/qla_init.c | 4 ++--
drivers/scsi/qla2xxx/qla_nx.c | 8 ++------
drivers/scsi/qla4xxx/ql4_nx.c | 4 +---
3 files changed, 5 insertions(+), 11 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index ca50847..a44653b 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -685,7 +685,7 @@ qla24xx_pci_config(scsi_qla_host_t *vha)
pcix_set_mmrbc(ha->pdev, 2048);

/* PCIe -- adjust Maximum Read Request Size (2048). */
- if (pci_find_capability(ha->pdev, PCI_CAP_ID_EXP))
+ if (pci_is_pcie(ha->pdev))
pcie_set_readrq(ha->pdev, 2048);

pci_disable_rom(ha->pdev);
@@ -721,7 +721,7 @@ qla25xx_pci_config(scsi_qla_host_t *vha)
pci_write_config_word(ha->pdev, PCI_COMMAND, w);

/* PCIe -- adjust Maximum Read Request Size (2048). */
- if (pci_find_capability(ha->pdev, PCI_CAP_ID_EXP))
+ if (pci_is_pcie(ha->pdev))
pcie_set_readrq(ha->pdev, 2048);

pci_disable_rom(ha->pdev);
diff --git a/drivers/scsi/qla2xxx/qla_nx.c b/drivers/scsi/qla2xxx/qla_nx.c
index caf627b..be516e9 100644
--- a/drivers/scsi/qla2xxx/qla_nx.c
+++ b/drivers/scsi/qla2xxx/qla_nx.c
@@ -1615,13 +1615,11 @@ qla82xx_get_fw_offs(struct qla_hw_data *ha)
char *
qla82xx_pci_info_str(struct scsi_qla_host *vha, char *str)
{
- int pcie_reg;
struct qla_hw_data *ha = vha->hw;
char lwstr[6];
uint16_t lnk;

- pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
- pci_read_config_word(ha->pdev, pcie_reg + PCI_EXP_LNKSTA, &lnk);
+ pci_pcie_capability_read_word(ha->pdev, PCI_EXP_LNKSTA, &lnk);
ha->link_width = (lnk >> 4) & 0x3f;

strcpy(str, "PCIe (");
@@ -2497,7 +2495,6 @@ fw_load_failed:
int
qla82xx_start_firmware(scsi_qla_host_t *vha)
{
- int pcie_cap;
uint16_t lnk;
struct qla_hw_data *ha = vha->hw;

@@ -2528,8 +2525,7 @@ qla82xx_start_firmware(scsi_qla_host_t *vha)
}

/* Negotiated Link width */
- pcie_cap = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
- pci_read_config_word(ha->pdev, pcie_cap + PCI_EXP_LNKSTA, &lnk);
+ pci_pcie_capability_read_word(ha->pdev, PCI_EXP_LNKSTA, &lnk);
ha->link_width = (lnk >> 4) & 0x3f;

/* Synchronize with Receive peg */
diff --git a/drivers/scsi/qla4xxx/ql4_nx.c b/drivers/scsi/qla4xxx/ql4_nx.c
index 228b670..7e30158 100644
--- a/drivers/scsi/qla4xxx/ql4_nx.c
+++ b/drivers/scsi/qla4xxx/ql4_nx.c
@@ -1566,7 +1566,6 @@ qla4_8xxx_set_qsnt_ready(struct scsi_qla_host *ha)
static int
qla4_8xxx_start_firmware(struct scsi_qla_host *ha, uint32_t image_start)
{
- int pcie_cap;
uint16_t lnk;

/* scrub dma mask expansion register */
@@ -1590,8 +1589,7 @@ qla4_8xxx_start_firmware(struct scsi_qla_host *ha, uint32_t image_start)
}

/* Negotiated Link width */
- pcie_cap = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
- pci_read_config_word(ha->pdev, pcie_cap + PCI_EXP_LNKSTA, &lnk);
+ pci_pcie_capability_read_word(ha->pdev, PCI_EXP_LNKSTA, &lnk);
ha->link_width = (lnk >> 4) & 0x3f;

/* Synchronize with Receive peg */
--
1.7.9.5


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