[dpdk-dev] [PATCH v2 19/29] net/e1000: use eal I/O device memory read/write API

[Jerin Jacob]

From: Santosh Shukla <santosh.shu...@caviumnetworks.com>

Replace the raw I/O device memory read/write access with eal
abstraction for I/O device memory read/write access to fix
portability issues across different architectures.

CC: Wenzhuo Lu <wenzhuo...@intel.com>
Signed-off-by: Santosh Shukla <santosh.shu...@caviumnetworks.com>
Signed-off-by: Jerin Jacob <jerin.ja...@caviumnetworks.com>
---
 drivers/net/e1000/base/e1000_osdep.h | 18 ++++++++++--------
 drivers/net/e1000/em_rxtx.c          |  2 +-
 drivers/net/e1000/igb_rxtx.c         |  2 +-
 3 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/drivers/net/e1000/base/e1000_osdep.h 
b/drivers/net/e1000/base/e1000_osdep.h
index 47a1948..b886804 100644
--- a/drivers/net/e1000/base/e1000_osdep.h
+++ b/drivers/net/e1000/base/e1000_osdep.h
@@ -44,6 +44,7 @@
 #include <rte_log.h>
 #include <rte_debug.h>
 #include <rte_byteorder.h>
+#include <rte_io.h>
 
 #include "../e1000_logs.h"
 
@@ -94,17 +95,18 @@ typedef int         bool;
 
 #define E1000_WRITE_FLUSH(a) E1000_READ_REG(a, E1000_STATUS)
 
-#define E1000_PCI_REG(reg) (*((volatile uint32_t *)(reg)))
+#define E1000_PCI_REG(reg)     rte_read32(reg)
 
-#define E1000_PCI_REG16(reg) (*((volatile uint16_t *)(reg)))
+#define E1000_PCI_REG16(reg)   rte_read16(reg)
 
-#define E1000_PCI_REG_WRITE(reg, value) do { \
-       E1000_PCI_REG((reg)) = (rte_cpu_to_le_32(value)); \
-} while (0)
+#define E1000_PCI_REG_WRITE(reg, value)                        \
+       rte_write32((rte_cpu_to_le_32(value)), reg)
 
-#define E1000_PCI_REG_WRITE16(reg, value) do { \
-       E1000_PCI_REG16((reg)) = (rte_cpu_to_le_16(value)); \
-} while (0)
+#define E1000_PCI_REG_WRITE_RELAXED(reg, value)                \
+       rte_write32_relaxed((rte_cpu_to_le_32(value)), reg)
+
+#define E1000_PCI_REG_WRITE16(reg, value)              \
+       rte_write16((rte_cpu_to_le_16(value)), reg)
 
 #define E1000_PCI_REG_ADDR(hw, reg) \
        ((volatile uint32_t *)((char *)(hw)->hw_addr + (reg)))
diff --git a/drivers/net/e1000/em_rxtx.c b/drivers/net/e1000/em_rxtx.c
index 41f51c0..6ec38d4 100644
--- a/drivers/net/e1000/em_rxtx.c
+++ b/drivers/net/e1000/em_rxtx.c
@@ -610,7 +610,7 @@ eth_em_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
        PMD_TX_LOG(DEBUG, "port_id=%u queue_id=%u tx_tail=%u nb_tx=%u",
                (unsigned) txq->port_id, (unsigned) txq->queue_id,
                (unsigned) tx_id, (unsigned) nb_tx);
-       E1000_PCI_REG_WRITE(txq->tdt_reg_addr, tx_id);
+       E1000_PCI_REG_WRITE_RELAXED(txq->tdt_reg_addr, tx_id);
        txq->tx_tail = tx_id;
 
        return nb_tx;
diff --git a/drivers/net/e1000/igb_rxtx.c b/drivers/net/e1000/igb_rxtx.c
index dbd37ac..61edbfb 100644
--- a/drivers/net/e1000/igb_rxtx.c
+++ b/drivers/net/e1000/igb_rxtx.c
@@ -605,7 +605,7 @@ eth_igb_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
        /*
         * Set the Transmit Descriptor Tail (TDT).
         */
-       E1000_PCI_REG_WRITE(txq->tdt_reg_addr, tx_id);
+       E1000_PCI_REG_WRITE_RELAXED(txq->tdt_reg_addr, tx_id);
        PMD_TX_LOG(DEBUG, "port_id=%u queue_id=%u tx_tail=%u nb_tx=%u",
                   (unsigned) txq->port_id, (unsigned) txq->queue_id,
                   (unsigned) tx_id, (unsigned) nb_tx);
-- 
2.5.5