cxgb4: Fix T5 adapter accessing T4 adapter registers

Fixes few register access for both T4 and T5.
PCIE_CORE_UTL_SYSTEM_BUS_AGENT_STATUS & PCIE_CORE_UTL_PCI_EXPRESS_PORT_STATUS
is T4 only register don't let T5 access them. For T5 MA_PARITY_ERROR_STATUS2
is additionally read. MPS_TRC_RSS_CONTROL is T4 only register, for T5 use
MPS_T5_TRC_RSS_CONTROL.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 24 insertions, 11 deletions

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 18fb9c61d7ba..cf387ae8d7f8 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -1253,7 +1253,9 @@ freeout:	t4_free_sge_resources(adap);
                         goto freeout;
         }
 
-        t4_write_reg(adap, MPS_TRC_RSS_CONTROL,
+        t4_write_reg(adap, is_t4(adap->params.chip) ?
+                                MPS_TRC_RSS_CONTROL :
+                                MPS_T5_TRC_RSS_CONTROL,
                      RSSCONTROL(netdev2pinfo(adap->port[0])->tx_chan) |
                      QUEUENUMBER(s->ethrxq[0].rspq.abs_id));
         return 0;
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index adf16a54da26..0250a9deb292 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -1403,15 +1403,18 @@ static void pcie_intr_handler(struct adapter *adapter)
 
         int fat;
 
-        fat = t4_handle_intr_status(adapter,
-                                    PCIE_CORE_UTL_SYSTEM_BUS_AGENT_STATUS,
-                                    sysbus_intr_info) +
-              t4_handle_intr_status(adapter,
-                                    PCIE_CORE_UTL_PCI_EXPRESS_PORT_STATUS,
-                                    pcie_port_intr_info) +
-              t4_handle_intr_status(adapter, PCIE_INT_CAUSE,
-                                    is_t4(adapter->params.chip) ?
-                                    pcie_intr_info : t5_pcie_intr_info);
+        if (is_t4(adapter->params.chip))
+                fat = t4_handle_intr_status(adapter,
+                                            PCIE_CORE_UTL_SYSTEM_BUS_AGENT_STATUS,
+                                            sysbus_intr_info) +
+                        t4_handle_intr_status(adapter,
+                                              PCIE_CORE_UTL_PCI_EXPRESS_PORT_STATUS,
+                                              pcie_port_intr_info) +
+                        t4_handle_intr_status(adapter, PCIE_INT_CAUSE,
+                                              pcie_intr_info);
+        else
+                fat = t4_handle_intr_status(adapter, PCIE_INT_CAUSE,
+                                            t5_pcie_intr_info);
 
         if (fat)
                 t4_fatal_err(adapter);
@@ -1777,10 +1780,16 @@ static void ma_intr_handler(struct adapter *adap)
 {
         u32 v, status = t4_read_reg(adap, MA_INT_CAUSE);
 
-        if (status & MEM_PERR_INT_CAUSE)
+        if (status & MEM_PERR_INT_CAUSE) {
                 dev_alert(adap->pdev_dev,
                           "MA parity error, parity status %#x\n",
                           t4_read_reg(adap, MA_PARITY_ERROR_STATUS));
+                if (is_t5(adap->params.chip))
+                        dev_alert(adap->pdev_dev,
+                                  "MA parity error, parity status %#x\n",
+                                  t4_read_reg(adap,
+                                              MA_PARITY_ERROR_STATUS2));
+        }
         if (status & MEM_WRAP_INT_CAUSE) {
                 v = t4_read_reg(adap, MA_INT_WRAP_STATUS);
                 dev_alert(adap->pdev_dev, "MA address wrap-around error by "
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
index e3146e83df20..39fb325474f7 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
@@ -511,6 +511,7 @@
 #define  MEM_WRAP_CLIENT_NUM_GET(x) (((x) & MEM_WRAP_CLIENT_NUM_MASK) >> MEM_WRAP_CLIENT_NUM_SHIFT)
 #define MA_PCIE_FW 0x30b8
 #define MA_PARITY_ERROR_STATUS 0x77f4
+#define MA_PARITY_ERROR_STATUS2 0x7804
 
 #define MA_EXT_MEMORY1_BAR 0x7808
 #define EDC_0_BASE_ADDR 0x7900
@@ -959,6 +960,7 @@
 #define  TRCMULTIFILTER     0x00000001U
 
 #define MPS_TRC_RSS_CONTROL 0x9808
+#define MPS_T5_TRC_RSS_CONTROL 0xa00c
 #define  RSSCONTROL_MASK    0x00ff0000U
 #define  RSSCONTROL_SHIFT   16
 #define  RSSCONTROL(x)      ((x) << RSSCONTROL_SHIFT)