[PATCH 10/46] net/octeon_ep: use rte stdatomic API

[Tyler Retzlaff]

Replace the use of gcc builtin __atomic_xxx intrinsics with
corresponding rte_atomic_xxx optional rte stdatomic API.

Signed-off-by: Tyler Retzlaff <roretzla at linux.microsoft.com>
---
 drivers/net/octeon_ep/cnxk_ep_rx.h    | 5 +++--
 drivers/net/octeon_ep/cnxk_ep_tx.c    | 5 +++--
 drivers/net/octeon_ep/cnxk_ep_vf.c    | 8 ++++----
 drivers/net/octeon_ep/otx2_ep_vf.c    | 8 ++++----
 drivers/net/octeon_ep/otx_ep_common.h | 4 ++--
 drivers/net/octeon_ep/otx_ep_rxtx.c   | 6 ++++--
 6 files changed, 20 insertions(+), 16 deletions(-)

diff --git a/drivers/net/octeon_ep/cnxk_ep_rx.h b/drivers/net/octeon_ep/cnxk_ep_rx.h
index ecf95cd..9422042 100644
--- a/drivers/net/octeon_ep/cnxk_ep_rx.h
+++ b/drivers/net/octeon_ep/cnxk_ep_rx.h
@@ -98,7 +98,7 @@
 	 * This adds an extra local variable, but almost halves the
 	 * number of PCIe writes.
 	 */
-	val = __atomic_load_n(droq->pkts_sent_ism, __ATOMIC_RELAXED);
+	val = rte_atomic_load_explicit(droq->pkts_sent_ism, rte_memory_order_relaxed);
 
 	new_pkts = val - droq->pkts_sent_prev;
 	droq->pkts_sent_prev = val;
@@ -111,7 +111,8 @@
 		rte_mb();
 
 		rte_write64(OTX2_SDP_REQUEST_ISM, droq->pkts_sent_reg);
-		while (__atomic_load_n(droq->pkts_sent_ism, __ATOMIC_RELAXED) >= val) {
+		while (rte_atomic_load_explicit(droq->pkts_sent_ism,
+		    rte_memory_order_relaxed) >= val) {
 			rte_write64(OTX2_SDP_REQUEST_ISM, droq->pkts_sent_reg);
 			rte_mb();
 		}
diff --git a/drivers/net/octeon_ep/cnxk_ep_tx.c b/drivers/net/octeon_ep/cnxk_ep_tx.c
index 233c8aa..e093140 100644
--- a/drivers/net/octeon_ep/cnxk_ep_tx.c
+++ b/drivers/net/octeon_ep/cnxk_ep_tx.c
@@ -15,7 +15,7 @@
 	 * This adds an extra local variable, but almost halves the
 	 * number of PCIe writes.
 	 */
-	val = __atomic_load_n(iq->inst_cnt_ism, __ATOMIC_RELAXED);
+	val = rte_atomic_load_explicit(iq->inst_cnt_ism, rte_memory_order_relaxed);
 	iq->inst_cnt += val - iq->inst_cnt_prev;
 	iq->inst_cnt_prev = val;
 
@@ -27,7 +27,8 @@
 		rte_mb();
 
 		rte_write64(OTX2_SDP_REQUEST_ISM, iq->inst_cnt_reg);
-		while (__atomic_load_n(iq->inst_cnt_ism, __ATOMIC_RELAXED) >= val) {
+		while (rte_atomic_load_explicit(iq->inst_cnt_ism,
+		    rte_memory_order_relaxed) >= val) {
 			rte_write64(OTX2_SDP_REQUEST_ISM, iq->inst_cnt_reg);
 			rte_mb();
 		}
diff --git a/drivers/net/octeon_ep/cnxk_ep_vf.c b/drivers/net/octeon_ep/cnxk_ep_vf.c
index 39f357e..39b28de 100644
--- a/drivers/net/octeon_ep/cnxk_ep_vf.c
+++ b/drivers/net/octeon_ep/cnxk_ep_vf.c
@@ -150,10 +150,10 @@
 	rte_write64(ism_addr, (uint8_t *)otx_ep->hw_addr +
 		    CNXK_EP_R_IN_CNTS_ISM(iq_no));
 	iq->inst_cnt_ism =
-		(uint32_t *)((uint8_t *)otx_ep->ism_buffer_mz->addr
+		(uint32_t __rte_atomic *)((uint8_t *)otx_ep->ism_buffer_mz->addr
 			     + CNXK_EP_IQ_ISM_OFFSET(iq_no));
 	otx_ep_err("SDP_R[%d] INST Q ISM virt: %p, dma: 0x%" PRIX64, iq_no,
-		   (void *)iq->inst_cnt_ism, ism_addr);
+		   (void *)(uintptr_t)iq->inst_cnt_ism, ism_addr);
 	*iq->inst_cnt_ism = 0;
 	iq->inst_cnt_prev = 0;
 	iq->partial_ih = ((uint64_t)otx_ep->pkind) << 36;
@@ -235,10 +235,10 @@
 	rte_write64(ism_addr, (uint8_t *)otx_ep->hw_addr +
 		    CNXK_EP_R_OUT_CNTS_ISM(oq_no));
 	droq->pkts_sent_ism =
-		(uint32_t *)((uint8_t *)otx_ep->ism_buffer_mz->addr
+		(uint32_t __rte_atomic *)((uint8_t *)otx_ep->ism_buffer_mz->addr
 			     + CNXK_EP_OQ_ISM_OFFSET(oq_no));
 	otx_ep_err("SDP_R[%d] OQ ISM virt: %p dma: 0x%" PRIX64,
-		    oq_no, (void *)droq->pkts_sent_ism, ism_addr);
+		    oq_no, (void *)(uintptr_t)droq->pkts_sent_ism, ism_addr);
 	*droq->pkts_sent_ism = 0;
 	droq->pkts_sent_prev = 0;
 
diff --git a/drivers/net/octeon_ep/otx2_ep_vf.c b/drivers/net/octeon_ep/otx2_ep_vf.c
index 25e0e5a..2aeebb4 100644
--- a/drivers/net/octeon_ep/otx2_ep_vf.c
+++ b/drivers/net/octeon_ep/otx2_ep_vf.c
@@ -300,10 +300,10 @@ static int otx2_vf_enable_rxq_intr(struct otx_ep_device *otx_epvf,
 	oct_ep_write64(ism_addr, (uint8_t *)otx_ep->hw_addr +
 		    SDP_VF_R_IN_CNTS_ISM(iq_no));
 	iq->inst_cnt_ism =
-		(uint32_t *)((uint8_t *)otx_ep->ism_buffer_mz->addr
+		(uint32_t __rte_atomic *)((uint8_t *)otx_ep->ism_buffer_mz->addr
 			     + OTX2_EP_IQ_ISM_OFFSET(iq_no));
 	otx_ep_err("SDP_R[%d] INST Q ISM virt: %p, dma: 0x%x", iq_no,
-		   (void *)iq->inst_cnt_ism,
+		   (void *)(uintptr_t)iq->inst_cnt_ism,
 		   (unsigned int)ism_addr);
 	*iq->inst_cnt_ism = 0;
 	iq->inst_cnt_prev = 0;
@@ -386,10 +386,10 @@ static int otx2_vf_enable_rxq_intr(struct otx_ep_device *otx_epvf,
 	oct_ep_write64(ism_addr, (uint8_t *)otx_ep->hw_addr +
 		    SDP_VF_R_OUT_CNTS_ISM(oq_no));
 	droq->pkts_sent_ism =
-		(uint32_t *)((uint8_t *)otx_ep->ism_buffer_mz->addr
+		(uint32_t __rte_atomic *)((uint8_t *)otx_ep->ism_buffer_mz->addr
 			     + OTX2_EP_OQ_ISM_OFFSET(oq_no));
 	otx_ep_err("SDP_R[%d] OQ ISM virt: %p, dma: 0x%x", oq_no,
-		   (void *)droq->pkts_sent_ism,
+		   (void *)(uintptr_t)droq->pkts_sent_ism,
 		   (unsigned int)ism_addr);
 	*droq->pkts_sent_ism = 0;
 	droq->pkts_sent_prev = 0;
diff --git a/drivers/net/octeon_ep/otx_ep_common.h b/drivers/net/octeon_ep/otx_ep_common.h
index 7776940..73eb0c9 100644
--- a/drivers/net/octeon_ep/otx_ep_common.h
+++ b/drivers/net/octeon_ep/otx_ep_common.h
@@ -218,7 +218,7 @@ struct otx_ep_iq_config {
  */
 struct otx_ep_instr_queue {
 	/* Location in memory updated by SDP ISM */
-	uint32_t *inst_cnt_ism;
+	RTE_ATOMIC(uint32_t) *inst_cnt_ism;
 	struct rte_mbuf **mbuf_list;
 	/* Pointer to the Virtual Base addr of the input ring. */
 	uint8_t *base_addr;
@@ -413,7 +413,7 @@ struct otx_ep_droq {
 	uint8_t ism_ena;
 
 	/* Pointer to host memory copy of output packet count, set by ISM */
-	uint32_t *pkts_sent_ism;
+	RTE_ATOMIC(uint32_t) *pkts_sent_ism;
 	uint32_t pkts_sent_prev;
 
 	/* Statistics for this DROQ. */
diff --git a/drivers/net/octeon_ep/otx_ep_rxtx.c b/drivers/net/octeon_ep/otx_ep_rxtx.c
index 59144e0..eb2d8c1 100644
--- a/drivers/net/octeon_ep/otx_ep_rxtx.c
+++ b/drivers/net/octeon_ep/otx_ep_rxtx.c
@@ -475,7 +475,8 @@
 		rte_mb();
 
 		rte_write64(OTX2_SDP_REQUEST_ISM, iq->inst_cnt_reg);
-		while (__atomic_load_n(iq->inst_cnt_ism, __ATOMIC_RELAXED) >= val) {
+		while (rte_atomic_load_explicit(iq->inst_cnt_ism,
+		    rte_memory_order_relaxed) >= val) {
 			rte_write64(OTX2_SDP_REQUEST_ISM, iq->inst_cnt_reg);
 			rte_mb();
 		}
@@ -871,7 +872,8 @@
 		rte_mb();
 
 		rte_write64(OTX2_SDP_REQUEST_ISM, droq->pkts_sent_reg);
-		while (__atomic_load_n(droq->pkts_sent_ism, __ATOMIC_RELAXED) >= val) {
+		while (rte_atomic_load_explicit(droq->pkts_sent_ism,
+		    rte_memory_order_relaxed) >= val) {
 			rte_write64(OTX2_SDP_REQUEST_ISM, droq->pkts_sent_reg);
 			rte_mb();
 		}
-- 
1.8.3.1