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Message-Id: <1438679180-25930-4-git-send-email-hariprasad@chelsio.com>
Date: Tue, 4 Aug 2015 14:36:19 +0530
From: Hariprasad Shenai <hariprasad@...lsio.com>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net, leedom@...lsio.com, nirranjan@...lsio.com,
Hariprasad Shenai <hariprasad@...lsio.com>
Subject: [PATCHv2 net-next 3/4] cxgb4/cxgb4vf: read the correct bits of PL Who Am I register
Read the correct bits of PL Who Am I for the Source PF field which has
changed in T6
Signed-off-by: Hariprasad Shenai <hariprasad@...lsio.com>
---
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 34 ++++++++++++++++++++++++-
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 8 ++++--
drivers/net/ethernet/chelsio/cxgb4/t4_regs.h | 4 +++
drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c | 3 ++-
4 files changed, 45 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index d582e17..27e87b6 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -4551,6 +4551,32 @@ 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)
+{
+ int ver, chip;
+ u16 device_id;
+
+ /* Retrieve adapter's device ID */
+ pci_read_config_word(pdev, PCI_DEVICE_ID, &device_id);
+ ver = device_id >> 12;
+ switch (ver) {
+ case CHELSIO_T4:
+ chip |= CHELSIO_CHIP_CODE(CHELSIO_T4, pl_rev);
+ break;
+ case CHELSIO_T5:
+ chip |= CHELSIO_CHIP_CODE(CHELSIO_T5, pl_rev);
+ break;
+ case CHELSIO_T6:
+ chip |= CHELSIO_CHIP_CODE(CHELSIO_T6, pl_rev);
+ break;
+ default:
+ dev_err(&pdev->dev, "Device %d is not supported\n",
+ device_id);
+ return -EINVAL;
+ }
+ return chip;
+}
+
static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{
int func, i, err, s_qpp, qpp, num_seg;
@@ -4558,6 +4584,8 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
bool highdma = false;
struct adapter *adapter = NULL;
void __iomem *regs;
+ u32 whoami, pl_rev;
+ enum chip_type chip;
printk_once(KERN_INFO "%s - version %s\n", DRV_DESC, DRV_VERSION);
@@ -4586,7 +4614,11 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
goto out_unmap_bar0;
/* We control everything through one PF */
- func = SOURCEPF_G(readl(regs + PL_WHOAMI_A));
+ 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);
if (func != ent->driver_data) {
iounmap(regs);
pci_disable_device(pdev);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index b193295..5c63ceb 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -3529,7 +3529,9 @@ int t4_slow_intr_handler(struct adapter *adapter)
void t4_intr_enable(struct adapter *adapter)
{
u32 val = 0;
- u32 pf = SOURCEPF_G(t4_read_reg(adapter, PL_WHOAMI_A));
+ u32 whoami = t4_read_reg(adapter, PL_WHOAMI_A);
+ u32 pf = CHELSIO_CHIP_VERSION(adapter->params.chip) <= CHELSIO_T5 ?
+ SOURCEPF_G(whoami) : T6_SOURCEPF_G(whoami);
if (CHELSIO_CHIP_VERSION(adapter->params.chip) <= CHELSIO_T5)
val = ERR_DROPPED_DB_F | ERR_EGR_CTXT_PRIO_F | DBFIFO_HP_INT_F;
@@ -3554,7 +3556,9 @@ void t4_intr_enable(struct adapter *adapter)
*/
void t4_intr_disable(struct adapter *adapter)
{
- u32 pf = SOURCEPF_G(t4_read_reg(adapter, PL_WHOAMI_A));
+ u32 whoami = t4_read_reg(adapter, PL_WHOAMI_A);
+ u32 pf = CHELSIO_CHIP_VERSION(adapter->params.chip) <= CHELSIO_T5 ?
+ SOURCEPF_G(whoami) : T6_SOURCEPF_G(whoami);
t4_write_reg(adapter, MYPF_REG(PL_PF_INT_ENABLE_A), 0);
t4_set_reg_field(adapter, PL_INT_MAP0_A, 1 << pf, 0);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
index 13ce018..e444dc4 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
@@ -2588,6 +2588,10 @@
#define SOURCEPF_M 0x7U
#define SOURCEPF_G(x) (((x) >> SOURCEPF_S) & SOURCEPF_M)
+#define T6_SOURCEPF_S 9
+#define T6_SOURCEPF_M 0x7U
+#define T6_SOURCEPF_G(x) (((x) >> T6_SOURCEPF_S) & T6_SOURCEPF_M)
+
#define PL_INT_CAUSE_A 0x1940c
#define ULP_TX_S 27
diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c b/drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c
index 0db6dc9..63dd5fd 100644
--- a/drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c
@@ -619,7 +619,8 @@ int t4vf_get_sge_params(struct adapter *adapter)
*/
whoami = t4_read_reg(adapter,
T4VF_PL_BASE_ADDR + PL_VF_WHOAMI_A);
- pf = SOURCEPF_G(whoami);
+ pf = CHELSIO_CHIP_VERSION(adapter->params.chip) <= CHELSIO_T5 ?
+ SOURCEPF_G(whoami) : T6_SOURCEPF_G(whoami);
s_hps = (HOSTPAGESIZEPF0_S +
(HOSTPAGESIZEPF1_S - HOSTPAGESIZEPF0_S) * pf);
--
2.3.4
--
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