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From: Jerin Jacob <jerin.jacob@caviumnetworks.com>
To: <dev@dpdk.org>
CC: <konstantin.ananyev@intel.com>, <thomas.monjalon@6wind.com>,
<bruce.richardson@intel.com>, <jianbo.liu@linaro.org>,
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<jerin.jacob@caviumnetworks.com>
Date: Tue, 27 Dec 2016 15:19:32 +0530
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Subject: [dpdk-dev] [PATCH v2 26/29] net/qede: use eal I/O device memory
read/write API
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X-List-Received-Date: Tue, 27 Dec 2016 09:52:41 -0000
From: Santosh Shukla <santosh.shukla@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: Harish Patil <harish.patil@cavium.com>
CC: Rasesh Mody <rasesh.mody@cavium.com>
Signed-off-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
---
drivers/net/qede/base/bcm_osal.h | 20 +++++++++++---------
drivers/net/qede/base/ecore_int_api.h | 28 +++++++++++++++++++++++-----
drivers/net/qede/base/ecore_spq.c | 3 ++-
drivers/net/qede/qede_rxtx.c | 2 +-
4 files changed, 37 insertions(+), 16 deletions(-)
diff --git a/drivers/net/qede/base/bcm_osal.h b/drivers/net/qede/base/bcm_osal.h
index 0b446f2..33d43c6 100644
--- a/drivers/net/qede/base/bcm_osal.h
+++ b/drivers/net/qede/base/bcm_osal.h
@@ -18,6 +18,7 @@
#include <rte_cycles.h>
#include <rte_debug.h>
#include <rte_ether.h>
+#include <rte_io.h>
/* Forward declaration */
struct ecore_dev;
@@ -113,18 +114,18 @@ void *osal_dma_alloc_coherent_aligned(struct ecore_dev *, dma_addr_t *,
/* HW reads/writes */
-#define DIRECT_REG_RD(_dev, _reg_addr) \
- (*((volatile u32 *) (_reg_addr)))
+#define DIRECT_REG_RD(_dev, _reg_addr) rte_read32(_reg_addr)
#define REG_RD(_p_hwfn, _reg_offset) \
DIRECT_REG_RD(_p_hwfn, \
((u8 *)(uintptr_t)(_p_hwfn->regview) + (_reg_offset)))
-#define DIRECT_REG_WR16(_reg_addr, _val) \
- (*((volatile u16 *)(_reg_addr)) = _val)
+#define DIRECT_REG_WR16(_reg_addr, _val) rte_write16((_val), (_reg_addr))
-#define DIRECT_REG_WR(_dev, _reg_addr, _val) \
- (*((volatile u32 *)(_reg_addr)) = _val)
+#define DIRECT_REG_WR(_dev, _reg_addr, _val) rte_write32((_val), (_reg_addr))
+
+#define DIRECT_REG_WR_RELAXED(_dev, _reg_addr, _val) \
+ rte_write32_relaxed((_val), (_reg_addr))
#define REG_WR(_p_hwfn, _reg_offset, _val) \
DIRECT_REG_WR(NULL, \
@@ -134,9 +135,10 @@ void *osal_dma_alloc_coherent_aligned(struct ecore_dev *, dma_addr_t *,
DIRECT_REG_WR16(((u8 *)(uintptr_t)(_p_hwfn->regview) + \
(_reg_offset)), (u16)_val)
-#define DOORBELL(_p_hwfn, _db_addr, _val) \
- DIRECT_REG_WR(_p_hwfn, \
- ((u8 *)(uintptr_t)(_p_hwfn->doorbells) + (_db_addr)), (u32)_val)
+#define DOORBELL(_p_hwfn, _db_addr, _val) \
+ DIRECT_REG_WR_RELAXED((_p_hwfn), \
+ ((u8 *)(uintptr_t)(_p_hwfn->doorbells) + \
+ (_db_addr)), (u32)_val)
/* Mutexes */
diff --git a/drivers/net/qede/base/ecore_int_api.h b/drivers/net/qede/base/ecore_int_api.h
index fc873e7..a0d6a43 100644
--- a/drivers/net/qede/base/ecore_int_api.h
+++ b/drivers/net/qede/base/ecore_int_api.h
@@ -120,19 +120,37 @@ static OSAL_INLINE void __internal_ram_wr(void *p_hwfn,
}
#ifdef ECORE_CONFIG_DIRECT_HWFN
+static OSAL_INLINE void __internal_ram_wr_relaxed(struct ecore_hwfn *p_hwfn,
+ void OSAL_IOMEM * addr,
+ int size, u32 *data)
+#else
+static OSAL_INLINE void __internal_ram_wr_relaxed(void *p_hwfn,
+ void OSAL_IOMEM * addr,
+ int size, u32 *data)
+#endif
+{
+ unsigned int i;
+
+ for (i = 0; i < size / sizeof(*data); i++)
+ DIRECT_REG_WR_RELAXED(p_hwfn, &((u32 OSAL_IOMEM *)addr)[i],
+ data[i]);
+}
+
+#ifdef ECORE_CONFIG_DIRECT_HWFN
static OSAL_INLINE void internal_ram_wr(struct ecore_hwfn *p_hwfn,
- void OSAL_IOMEM *addr,
- int size, u32 *data)
+ void OSAL_IOMEM * addr,
+ int size, u32 *data)
{
- __internal_ram_wr(p_hwfn, addr, size, data);
+ __internal_ram_wr_relaxed(p_hwfn, addr, size, data);
}
#else
static OSAL_INLINE void internal_ram_wr(void OSAL_IOMEM *addr,
- int size, u32 *data)
+ int size, u32 *data)
{
- __internal_ram_wr(OSAL_NULL, addr, size, data);
+ __internal_ram_wr_relaxed(OSAL_NULL, addr, size, data);
}
#endif
+
#endif
struct ecore_hwfn;
diff --git a/drivers/net/qede/base/ecore_spq.c b/drivers/net/qede/base/ecore_spq.c
index 0d744dd..6e5ce5d 100644
--- a/drivers/net/qede/base/ecore_spq.c
+++ b/drivers/net/qede/base/ecore_spq.c
@@ -248,7 +248,8 @@ static enum _ecore_status_t ecore_spq_hw_post(struct ecore_hwfn *p_hwfn,
/* make sure the SPQE is updated before the doorbell */
OSAL_WMB(p_hwfn->p_dev);
- DOORBELL(p_hwfn, DB_ADDR(p_spq->cid, DQ_DEMS_LEGACY), *(u32 *)&db);
+ DOORBELL(p_hwfn, DB_ADDR(p_spq->cid, DQ_DEMS_LEGACY),
+ *(u32 *)&db);
/* make sure doorbell is rang */
OSAL_WMB(p_hwfn->p_dev);
diff --git a/drivers/net/qede/qede_rxtx.c b/drivers/net/qede/qede_rxtx.c
index 2e181c8..e1e9956 100644
--- a/drivers/net/qede/qede_rxtx.c
+++ b/drivers/net/qede/qede_rxtx.c
@@ -1246,7 +1246,7 @@ qede_xmit_pkts(void *p_txq, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
txq->tx_db.data.bd_prod = bd_prod;
rte_wmb();
rte_compiler_barrier();
- DIRECT_REG_WR(edev, txq->doorbell_addr, txq->tx_db.raw);
+ DIRECT_REG_WR_RELAXED(edev, txq->doorbell_addr, txq->tx_db.raw);
rte_wmb();
/* Check again for Tx completions */
--
2.5.5