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Code Issues Releases Wiki Activity

cxgb4: clean up init_one

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clean up init_one and use chip_ver consistently throughout
init_one() for chip version.

Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ganesh Goudar 2018-05-24 18:32:15 +05:30 committed by David S. Miller
parent 57ccaedb74
commit e8d452923a
2 changed files with 28 additions and 21 deletions
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47
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
View file

@ -5240,14 +5240,11 @@ static void free_some_resources(struct adapter *adapter)
NETIF_F_IPV6_CSUM | NETIF_F_HIGHDMA)
#define SEGMENT_SIZE 128
static int get_chip_type(struct pci_dev *pdev, u32 pl_rev)
static int t4_get_chip_type(struct adapter *adap, int ver)
{
u16 device_id;
u32 pl_rev = REV_G(t4_read_reg(adap, PL_REV_A));
/* Retrieve adapter's device ID */
pci_read_config_word(pdev, PCI_DEVICE_ID, &device_id);
switch (device_id >> 12) {
switch (ver) {
case CHELSIO_T4:
return CHELSIO_CHIP_CODE(CHELSIO_T4, pl_rev);
case CHELSIO_T5:
@ -5255,8 +5252,7 @@ static int get_chip_type(struct pci_dev *pdev, u32 pl_rev)
case CHELSIO_T6:
return CHELSIO_CHIP_CODE(CHELSIO_T6, pl_rev);
default:
dev_err(&pdev->dev, "Device %d is not supported\n",
device_id);
break;
}
return -EINVAL;
}
@ -5426,15 +5422,18 @@ static int cxgb4_iov_configure(struct pci_dev *pdev, int num_vfs)
static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{
int func, i, err, s_qpp, qpp, num_seg;
struct net_device *netdev;
struct adapter *adapter;
static int adap_idx = 1;
int s_qpp, qpp, num_seg;
struct port_info *pi;
bool highdma = false;
struct adapter *adapter = NULL;
struct net_device *netdev;
void __iomem *regs;
u32 whoami, pl_rev;
enum chip_type chip;
static int adap_idx = 1;
void __iomem *regs;
int func, chip_ver;
u16 device_id;
int i, err;
u32 whoami;
printk_once(KERN_INFO "%s - version %s\n", DRV_DESC, DRV_VERSION);
@ -5470,11 +5469,17 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
goto out_free_adapter;
/* We control everything through one PF */
whoami = readl(regs + PL_WHOAMI_A);
pl_rev = REV_G(readl(regs + PL_REV_A));
chip = get_chip_type(pdev, pl_rev);
func = CHELSIO_CHIP_VERSION(chip) <= CHELSIO_T5 ?
SOURCEPF_G(whoami) : T6_SOURCEPF_G(whoami);
whoami = t4_read_reg(adapter, PL_WHOAMI_A);
pci_read_config_word(pdev, PCI_DEVICE_ID, &device_id);
chip = t4_get_chip_type(adapter, CHELSIO_PCI_ID_VER(device_id));
if (chip < 0) {
dev_err(&pdev->dev, "Device %d is not supported\n", device_id);
err = chip;
goto out_free_adapter;
}
chip_ver = CHELSIO_CHIP_VERSION(chip);
func = chip_ver <= CHELSIO_T5 ?
SOURCEPF_G(whoami) : T6_SOURCEPF_G(whoami);
adapter->pdev = pdev;
adapter->pdev_dev = &pdev->dev;
@ -5640,7 +5645,7 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |
NETIF_F_HW_TC;
if (CHELSIO_CHIP_VERSION(chip) > CHELSIO_T5) {
if (chip_ver > CHELSIO_T5) {
netdev->hw_enc_features |= NETIF_F_IP_CSUM |
NETIF_F_IPV6_CSUM |
NETIF_F_RXCSUM |
@ -5720,7 +5725,7 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
dev_warn(&pdev->dev, "could not allocate MPS Encap entries, continuing\n");
#if IS_ENABLED(CONFIG_IPV6)
if ((CHELSIO_CHIP_VERSION(adapter->params.chip) <= CHELSIO_T5) &&
if (chip_ver <= CHELSIO_T5 &&
(!(t4_read_reg(adapter, LE_DB_CONFIG_A) & ASLIPCOMPEN_F))) {
/* CLIP functionality is not present in hardware,
* hence disable all offload features

2
drivers/net/ethernet/chelsio/cxgb4/t4_chip_type.h
View file

@ -34,6 +34,8 @@
#ifndef __T4_CHIP_TYPE_H__
#define __T4_CHIP_TYPE_H__
#define CHELSIO_PCI_ID_VER(__DeviceID) ((__DeviceID) >> 12)
#define CHELSIO_T4 0x4
#define CHELSIO_T5 0x5
#define CHELSIO_T6 0x6