[PATCH v4] ethdev: TEST support single queue per port

["Morten Brørup" <mb@smartsharesystems.com>]

Configuring one queue per port fails compilation on my system.
Test to see how much it fails in CI.

Signed-off-by: Morten Brørup <mb@smartsharesystems.com>
---
v4:
* Workaound GCC optimizer incorrectly throwing a warning in these network
  drivers:
  * bnxt
  * e1000
  * failsafe
  * hns3
v3:
* Fix net/ixgbe driver.
v2:
* Fix net/vmxnet3 driver.
---
 config/rte_config.h                  |  4 ++--
 drivers/net/bnxt/bnxt_ethdev.c       |  3 +++
 drivers/net/e1000/igb_rxtx.c         |  3 +++
 drivers/net/failsafe/failsafe_ops.c  |  6 ++++++
 drivers/net/hns3/hns3_rxtx.c         |  3 +++
 drivers/net/ixgbe/ixgbe_ethdev.c     |  3 ++-
 drivers/net/vmxnet3/vmxnet3_ethdev.c | 32 +++++++++++++++++-----------
 7 files changed, 39 insertions(+), 15 deletions(-)

diff --git a/config/rte_config.h b/config/rte_config.h
index fd6f8a2f1a..924192c71c 100644
--- a/config/rte_config.h
+++ b/config/rte_config.h
@@ -65,8 +65,8 @@
 #define RTE_MBUF_DEFAULT_MEMPOOL_OPS "ring_mp_mc"
 
 /* ether defines */
-#define RTE_MAX_QUEUES_PER_PORT 1024
-#define RTE_ETHDEV_QUEUE_STAT_CNTRS 16 /* max 256 */
+#define RTE_MAX_QUEUES_PER_PORT 1 /* default 1024 */
+#define RTE_ETHDEV_QUEUE_STAT_CNTRS 1 /* max 256, default 16 */
 #define RTE_ETHDEV_RXTX_CALLBACKS 1
 #define RTE_MAX_MULTI_HOST_CTRLS 4
 
diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index 1f7c0d77d5..f34a953ecd 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -842,6 +842,8 @@ static int bnxt_alloc_prev_ring_stats(struct bnxt *bp)
 	return -ENOMEM;
 }
 
+#pragma GCC push_options
+#pragma GCC optimize("no-peel-loops")
 static int bnxt_start_nic(struct bnxt *bp)
 {
 	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(bp->eth_dev);
@@ -1006,6 +1008,7 @@ static int bnxt_start_nic(struct bnxt *bp)
 
 	return rc;
 }
+#pragma GCC pop_options
 
 static int bnxt_shutdown_nic(struct bnxt *bp)
 {
diff --git a/drivers/net/e1000/igb_rxtx.c b/drivers/net/e1000/igb_rxtx.c
index d61eaad2de..bcc62011cb 100644
--- a/drivers/net/e1000/igb_rxtx.c
+++ b/drivers/net/e1000/igb_rxtx.c
@@ -1860,6 +1860,8 @@ eth_igb_tx_descriptor_status(void *tx_queue, uint16_t offset)
 	return RTE_ETH_TX_DESC_FULL;
 }
 
+#pragma GCC push_options
+#pragma GCC optimize("no-peel-loops")
 void
 igb_dev_clear_queues(struct rte_eth_dev *dev)
 {
@@ -1885,6 +1887,7 @@ igb_dev_clear_queues(struct rte_eth_dev *dev)
 		}
 	}
 }
+#pragma GCC pop_options
 
 void
 igb_dev_free_queues(struct rte_eth_dev *dev)
diff --git a/drivers/net/failsafe/failsafe_ops.c b/drivers/net/failsafe/failsafe_ops.c
index 9c013e0419..70862420b8 100644
--- a/drivers/net/failsafe/failsafe_ops.c
+++ b/drivers/net/failsafe/failsafe_ops.c
@@ -103,6 +103,8 @@ fs_dev_configure(struct rte_eth_dev *dev)
 	return 0;
 }
 
+#pragma GCC push_options
+#pragma GCC optimize("no-peel-loops")
 static void
 fs_set_queues_state_start(struct rte_eth_dev *dev)
 {
@@ -123,6 +125,7 @@ fs_set_queues_state_start(struct rte_eth_dev *dev)
 						RTE_ETH_QUEUE_STATE_STARTED;
 	}
 }
+#pragma GCC pop_options
 
 static int
 fs_dev_start(struct rte_eth_dev *dev)
@@ -171,6 +174,8 @@ fs_dev_start(struct rte_eth_dev *dev)
 	return 0;
 }
 
+#pragma GCC push_options
+#pragma GCC optimize("no-peel-loops")
 static void
 fs_set_queues_state_stop(struct rte_eth_dev *dev)
 {
@@ -185,6 +190,7 @@ fs_set_queues_state_stop(struct rte_eth_dev *dev)
 			dev->data->tx_queue_state[i] =
 						RTE_ETH_QUEUE_STATE_STOPPED;
 }
+#pragma GCC pop_options
 
 static int
 fs_dev_stop(struct rte_eth_dev *dev)
diff --git a/drivers/net/hns3/hns3_rxtx.c b/drivers/net/hns3/hns3_rxtx.c
index 5941b966e0..ad03dcc108 100644
--- a/drivers/net/hns3/hns3_rxtx.c
+++ b/drivers/net/hns3/hns3_rxtx.c
@@ -1299,6 +1299,8 @@ hns3_init_queues(struct hns3_adapter *hns, bool reset_queue)
 	return ret;
 }
 
+#pragma GCC push_options
+#pragma GCC optimize("no-peel-loops")
 void
 hns3_start_tqps(struct hns3_hw *hw)
 {
@@ -1322,6 +1324,7 @@ hns3_start_tqps(struct hns3_hw *hw)
 				RTE_ETH_QUEUE_STATE_STARTED;
 	}
 }
+#pragma GCC pop_options
 
 void
 hns3_stop_tqps(struct hns3_hw *hw)
diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index ab37c37469..895d6e7169 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -3385,7 +3385,8 @@ ixgbe_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 	stats->opackets = hw_stats->gptc;
 	stats->obytes = hw_stats->gotc;
 
-	for (i = 0; i < IXGBE_QUEUE_STAT_COUNTERS; i++) {
+	for (i = 0; i < RTE_MIN(IXGBE_QUEUE_STAT_COUNTERS,
+			(typeof(IXGBE_QUEUE_STAT_COUNTERS))RTE_ETHDEV_QUEUE_STAT_CNTRS); i++) {
 		stats->q_ipackets[i] = hw_stats->qprc[i];
 		stats->q_opackets[i] = hw_stats->qptc[i];
 		stats->q_ibytes[i] = hw_stats->qbrc[i];
diff --git a/drivers/net/vmxnet3/vmxnet3_ethdev.c b/drivers/net/vmxnet3/vmxnet3_ethdev.c
index 78fac63ab6..8a9bb452c6 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethdev.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethdev.c
@@ -1470,42 +1470,52 @@ vmxnet3_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 	struct vmxnet3_hw *hw = dev->data->dev_private;
 	struct UPT1_TxStats txStats;
 	struct UPT1_RxStats rxStats;
+	uint64_t packets, bytes;
 
 	VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
 
 	for (i = 0; i < hw->num_tx_queues; i++) {
 		vmxnet3_tx_stats_get(hw, i, &txStats);
 
-		stats->q_opackets[i] = txStats.ucastPktsTxOK +
+		packets = txStats.ucastPktsTxOK +
 			txStats.mcastPktsTxOK +
 			txStats.bcastPktsTxOK;
 
-		stats->q_obytes[i] = txStats.ucastBytesTxOK +
+		bytes = txStats.ucastBytesTxOK +
 			txStats.mcastBytesTxOK +
 			txStats.bcastBytesTxOK;
 
-		stats->opackets += stats->q_opackets[i];
-		stats->obytes += stats->q_obytes[i];
+		stats->opackets += packets;
+		stats->obytes += bytes;
 		stats->oerrors += txStats.pktsTxError + txStats.pktsTxDiscard;
+
+		if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) {
+			stats->q_opackets[i] = packets;
+			stats->q_obytes[i] = bytes;
+		}
 	}
 
 	for (i = 0; i < hw->num_rx_queues; i++) {
 		vmxnet3_rx_stats_get(hw, i, &rxStats);
 
-		stats->q_ipackets[i] = rxStats.ucastPktsRxOK +
+		packets = rxStats.ucastPktsRxOK +
 			rxStats.mcastPktsRxOK +
 			rxStats.bcastPktsRxOK;
 
-		stats->q_ibytes[i] = rxStats.ucastBytesRxOK +
+		bytes = rxStats.ucastBytesRxOK +
 			rxStats.mcastBytesRxOK +
 			rxStats.bcastBytesRxOK;
 
-		stats->ipackets += stats->q_ipackets[i];
-		stats->ibytes += stats->q_ibytes[i];
-
-		stats->q_errors[i] = rxStats.pktsRxError;
+		stats->ipackets += packets;
+		stats->ibytes += bytes;
 		stats->ierrors += rxStats.pktsRxError;
 		stats->imissed += rxStats.pktsRxOutOfBuf;
+
+		if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) {
+			stats->q_ipackets[i] = packets;
+			stats->q_ibytes[i] = bytes;
+			stats->q_errors[i] = rxStats.pktsRxError;
+		}
 	}
 
 	return 0;
@@ -1521,8 +1531,6 @@ vmxnet3_dev_stats_reset(struct rte_eth_dev *dev)
 
 	VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
 
-	RTE_BUILD_BUG_ON(RTE_ETHDEV_QUEUE_STAT_CNTRS < VMXNET3_MAX_TX_QUEUES);
-
 	for (i = 0; i < hw->num_tx_queues; i++) {
 		vmxnet3_hw_tx_stats_get(hw, i, &txStats);
 		memcpy(&hw->snapshot_tx_stats[i], &txStats,
-- 
2.43.0