From: Santosh Shukla <santosh.shukla@caviumnetworks.com>
Date: Wed, 18 Jan 2017 01:21:32 +0000 (+0530)
Subject: net/e1000: use I/O device memory read/write API
X-Git-Tag: spdx-start~4745
X-Git-Url: http://git.droids-corp.org/?p=dpdk.git;a=commitdiff_plain;h=e66eda1c246d5fd4f20d5e200c874bac89e69a37

net/e1000: use I/O device memory read/write API

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.lu@intel.com>
Signed-off-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
---

diff --git a/drivers/net/e1000/base/e1000_osdep.h b/drivers/net/e1000/base/e1000_osdep.h
index 47a194818e..b8868049fe 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 7e271ad646..d099d6a200 100644
--- a/drivers/net/e1000/em_rxtx.c
+++ b/drivers/net/e1000/em_rxtx.c
@@ -619,7 +619,7 @@ end_of_tx:
 	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 5d0d3cd6c3..45f3f249fd 100644
--- a/drivers/net/e1000/igb_rxtx.c
+++ b/drivers/net/e1000/igb_rxtx.c
@@ -609,7 +609,7 @@ 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);