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* [PATCH v2 net-next 0/7] ionic: housekeeping updates
@ 2021-10-01 18:05 Shannon Nelson
  2021-10-01 18:05 ` [PATCH v2 net-next 1/7] ionic: remove debug stats Shannon Nelson
                   ` (7 more replies)
  0 siblings, 8 replies; 9+ messages in thread
From: Shannon Nelson @ 2021-10-01 18:05 UTC (permalink / raw)
  To: davem, netdev, kuba; +Cc: drivers, jtoppins, Shannon Nelson

These are a few changes for code clean up and a couple
more lock management tweaks.

v2: rebased

Shannon Nelson (7):
  ionic: remove debug stats
  ionic: check for binary values in FW ver string
  ionic: move lif mutex setup and delete
  ionic: widen queue_lock use around lif init and deinit
  ionic: add polling to adminq wait
  ionic: have ionic_qcq_disable decide on sending to hardware
  ionic: add lif param to ionic_qcq_disable

 drivers/net/ethernet/pensando/ionic/ionic.h   |   1 +
 .../ethernet/pensando/ionic/ionic_debugfs.c   |   2 -
 .../net/ethernet/pensando/ionic/ionic_dev.c   |   1 -
 .../net/ethernet/pensando/ionic/ionic_dev.h   |   4 -
 .../ethernet/pensando/ionic/ionic_ethtool.c   |  38 ------
 .../net/ethernet/pensando/ionic/ionic_lif.c   |  74 ++++++-----
 .../net/ethernet/pensando/ionic/ionic_lif.h   |  45 -------
 .../net/ethernet/pensando/ionic/ionic_main.c  |  53 ++++++--
 .../net/ethernet/pensando/ionic/ionic_stats.c | 121 ------------------
 .../net/ethernet/pensando/ionic/ionic_txrx.c  |  14 --
 10 files changed, 89 insertions(+), 264 deletions(-)

-- 
2.17.1


^ permalink raw reply	[flat|nested] 9+ messages in thread

* [PATCH v2 net-next 1/7] ionic: remove debug stats
  2021-10-01 18:05 [PATCH v2 net-next 0/7] ionic: housekeeping updates Shannon Nelson
@ 2021-10-01 18:05 ` Shannon Nelson
  2021-10-01 18:05 ` [PATCH v2 net-next 2/7] ionic: check for binary values in FW ver string Shannon Nelson
                   ` (6 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: Shannon Nelson @ 2021-10-01 18:05 UTC (permalink / raw)
  To: davem, netdev, kuba; +Cc: drivers, jtoppins, Shannon Nelson

These debug stats are not really useful, their collection is
likely detrimental to performance, and they suck up a lot
of memory which never gets used if no one ever enables the
priv-flag to print them, so just remove these bits.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
---
 .../ethernet/pensando/ionic/ionic_debugfs.c   |   2 -
 .../net/ethernet/pensando/ionic/ionic_dev.c   |   1 -
 .../net/ethernet/pensando/ionic/ionic_dev.h   |   4 -
 .../ethernet/pensando/ionic/ionic_ethtool.c   |  38 ------
 .../net/ethernet/pensando/ionic/ionic_lif.h   |  45 -------
 .../net/ethernet/pensando/ionic/ionic_stats.c | 121 ------------------
 .../net/ethernet/pensando/ionic/ionic_txrx.c  |  14 --
 7 files changed, 225 deletions(-)

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_debugfs.c b/drivers/net/ethernet/pensando/ionic/ionic_debugfs.c
index 39f59849720d..86b79430c2ad 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_debugfs.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_debugfs.c
@@ -143,8 +143,6 @@ void ionic_debugfs_add_qcq(struct ionic_lif *lif, struct ionic_qcq *qcq)
 	debugfs_create_u32("qid", 0400, q_dentry, &q->hw_index);
 	debugfs_create_u32("qtype", 0400, q_dentry, &q->hw_type);
 	debugfs_create_u64("drop", 0400, q_dentry, &q->drop);
-	debugfs_create_u64("stop", 0400, q_dentry, &q->stop);
-	debugfs_create_u64("wake", 0400, q_dentry, &q->wake);
 
 	debugfs_create_file("tail", 0400, q_dentry, q, &q_tail_fops);
 	debugfs_create_file("head", 0400, q_dentry, q, &q_head_fops);
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_dev.c b/drivers/net/ethernet/pensando/ionic/ionic_dev.c
index 0d6858ab511c..d57e80d44c9d 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_dev.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_dev.c
@@ -581,7 +581,6 @@ unsigned int ionic_cq_service(struct ionic_cq *cq, unsigned int work_to_do,
 			cq->done_color = !cq->done_color;
 		cq->tail_idx = (cq->tail_idx + 1) & (cq->num_descs - 1);
 		cq_info = &cq->info[cq->tail_idx];
-		DEBUG_STATS_CQE_CNT(cq);
 
 		if (++work_done >= work_to_do)
 			break;
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_dev.h b/drivers/net/ethernet/pensando/ionic/ionic_dev.h
index 8311086fb1f4..e5acf3bd62b2 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_dev.h
+++ b/drivers/net/ethernet/pensando/ionic/ionic_dev.h
@@ -220,9 +220,6 @@ struct ionic_queue {
 	unsigned int num_descs;
 	unsigned int max_sg_elems;
 	u64 features;
-	u64 dbell_count;
-	u64 stop;
-	u64 wake;
 	u64 drop;
 	struct ionic_dev *idev;
 	unsigned int type;
@@ -269,7 +266,6 @@ struct ionic_cq {
 	bool done_color;
 	unsigned int num_descs;
 	unsigned int desc_size;
-	u64 compl_count;
 	void *base;
 	dma_addr_t base_pa;
 } ____cacheline_aligned_in_smp;
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c b/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c
index 3de1a03839e2..6b45cae39a20 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c
@@ -11,13 +11,6 @@
 #include "ionic_ethtool.h"
 #include "ionic_stats.h"
 
-static const char ionic_priv_flags_strings[][ETH_GSTRING_LEN] = {
-#define IONIC_PRIV_F_SW_DBG_STATS	BIT(0)
-	"sw-dbg-stats",
-};
-
-#define IONIC_PRIV_FLAGS_COUNT ARRAY_SIZE(ionic_priv_flags_strings)
-
 static void ionic_get_stats_strings(struct ionic_lif *lif, u8 *buf)
 {
 	u32 i;
@@ -59,9 +52,6 @@ static int ionic_get_sset_count(struct net_device *netdev, int sset)
 	case ETH_SS_STATS:
 		count = ionic_get_stats_count(lif);
 		break;
-	case ETH_SS_PRIV_FLAGS:
-		count = IONIC_PRIV_FLAGS_COUNT;
-		break;
 	}
 	return count;
 }
@@ -75,10 +65,6 @@ static void ionic_get_strings(struct net_device *netdev,
 	case ETH_SS_STATS:
 		ionic_get_stats_strings(lif, buf);
 		break;
-	case ETH_SS_PRIV_FLAGS:
-		memcpy(buf, ionic_priv_flags_strings,
-		       IONIC_PRIV_FLAGS_COUNT * ETH_GSTRING_LEN);
-		break;
 	}
 }
 
@@ -691,28 +677,6 @@ static int ionic_set_channels(struct net_device *netdev,
 	return err;
 }
 
-static u32 ionic_get_priv_flags(struct net_device *netdev)
-{
-	struct ionic_lif *lif = netdev_priv(netdev);
-	u32 priv_flags = 0;
-
-	if (test_bit(IONIC_LIF_F_SW_DEBUG_STATS, lif->state))
-		priv_flags |= IONIC_PRIV_F_SW_DBG_STATS;
-
-	return priv_flags;
-}
-
-static int ionic_set_priv_flags(struct net_device *netdev, u32 priv_flags)
-{
-	struct ionic_lif *lif = netdev_priv(netdev);
-
-	clear_bit(IONIC_LIF_F_SW_DEBUG_STATS, lif->state);
-	if (priv_flags & IONIC_PRIV_F_SW_DBG_STATS)
-		set_bit(IONIC_LIF_F_SW_DEBUG_STATS, lif->state);
-
-	return 0;
-}
-
 static int ionic_get_rxnfc(struct net_device *netdev,
 			   struct ethtool_rxnfc *info, u32 *rules)
 {
@@ -1013,8 +977,6 @@ static const struct ethtool_ops ionic_ethtool_ops = {
 	.get_strings		= ionic_get_strings,
 	.get_ethtool_stats	= ionic_get_stats,
 	.get_sset_count		= ionic_get_sset_count,
-	.get_priv_flags		= ionic_get_priv_flags,
-	.set_priv_flags		= ionic_set_priv_flags,
 	.get_rxnfc		= ionic_get_rxnfc,
 	.get_rxfh_indir_size	= ionic_get_rxfh_indir_size,
 	.get_rxfh_key_size	= ionic_get_rxfh_key_size,
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.h b/drivers/net/ethernet/pensando/ionic/ionic_lif.h
index 4915184f3efb..41f28154745f 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.h
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.h
@@ -14,9 +14,6 @@
 #define IONIC_ADMINQ_LENGTH	16	/* must be a power of two */
 #define IONIC_NOTIFYQ_LENGTH	64	/* must be a power of two */
 
-#define IONIC_MAX_NUM_NAPI_CNTR		(NAPI_POLL_WEIGHT + 1)
-#define IONIC_MAX_NUM_SG_CNTR		(IONIC_TX_MAX_SG_ELEMS + 1)
-
 #define ADD_ADDR	true
 #define DEL_ADDR	false
 #define CAN_SLEEP	true
@@ -37,7 +34,6 @@ struct ionic_tx_stats {
 	u64 clean;
 	u64 linearize;
 	u64 crc32_csum;
-	u64 sg_cntr[IONIC_MAX_NUM_SG_CNTR];
 	u64 dma_map_err;
 	u64 hwstamp_valid;
 	u64 hwstamp_invalid;
@@ -48,7 +44,6 @@ struct ionic_rx_stats {
 	u64 bytes;
 	u64 csum_none;
 	u64 csum_complete;
-	u64 buffers_posted;
 	u64 dropped;
 	u64 vlan_stripped;
 	u64 csum_error;
@@ -65,11 +60,6 @@ struct ionic_rx_stats {
 #define IONIC_QCQ_F_RX_STATS		BIT(4)
 #define IONIC_QCQ_F_NOTIFYQ		BIT(5)
 
-struct ionic_napi_stats {
-	u64 poll_count;
-	u64 work_done_cntr[IONIC_MAX_NUM_NAPI_CNTR];
-};
-
 struct ionic_qcq {
 	void *q_base;
 	dma_addr_t q_base_pa;
@@ -85,7 +75,6 @@ struct ionic_qcq {
 	struct ionic_cq cq;
 	struct ionic_intr_info intr;
 	struct napi_struct napi;
-	struct ionic_napi_stats napi_stats;
 	unsigned int flags;
 	struct dentry *dentry;
 };
@@ -142,7 +131,6 @@ struct ionic_lif_sw_stats {
 
 enum ionic_lif_state_flags {
 	IONIC_LIF_F_INITED,
-	IONIC_LIF_F_SW_DEBUG_STATS,
 	IONIC_LIF_F_UP,
 	IONIC_LIF_F_LINK_CHECK_REQUESTED,
 	IONIC_LIF_F_FILTER_SYNC_NEEDED,
@@ -350,37 +338,4 @@ int ionic_lif_rss_config(struct ionic_lif *lif, u16 types,
 void ionic_lif_rx_mode(struct ionic_lif *lif);
 int ionic_reconfigure_queues(struct ionic_lif *lif,
 			     struct ionic_queue_params *qparam);
-
-static inline void debug_stats_txq_post(struct ionic_queue *q, bool dbell)
-{
-	struct ionic_txq_desc *desc = &q->txq[q->head_idx];
-	u8 num_sg_elems;
-
-	q->dbell_count += dbell;
-
-	num_sg_elems = ((le64_to_cpu(desc->cmd) >> IONIC_TXQ_DESC_NSGE_SHIFT)
-						& IONIC_TXQ_DESC_NSGE_MASK);
-	if (num_sg_elems > (IONIC_MAX_NUM_SG_CNTR - 1))
-		num_sg_elems = IONIC_MAX_NUM_SG_CNTR - 1;
-
-	q->lif->txqstats[q->index].sg_cntr[num_sg_elems]++;
-}
-
-static inline void debug_stats_napi_poll(struct ionic_qcq *qcq,
-					 unsigned int work_done)
-{
-	qcq->napi_stats.poll_count++;
-
-	if (work_done > (IONIC_MAX_NUM_NAPI_CNTR - 1))
-		work_done = IONIC_MAX_NUM_NAPI_CNTR - 1;
-
-	qcq->napi_stats.work_done_cntr[work_done]++;
-}
-
-#define DEBUG_STATS_CQE_CNT(cq)		((cq)->compl_count++)
-#define DEBUG_STATS_RX_BUFF_CNT(q)	((q)->lif->rxqstats[q->index].buffers_posted++)
-#define DEBUG_STATS_TXQ_POST(q, dbell)  debug_stats_txq_post(q, dbell)
-#define DEBUG_STATS_NAPI_POLL(qcq, work_done) \
-	debug_stats_napi_poll(qcq, work_done)
-
 #endif /* _IONIC_LIF_H_ */
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_stats.c b/drivers/net/ethernet/pensando/ionic/ionic_stats.c
index c14de5fcedea..fd6806b4a1b9 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_stats.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_stats.c
@@ -151,33 +151,11 @@ static const struct ionic_stat_desc ionic_rx_stats_desc[] = {
 	IONIC_RX_STAT_DESC(vlan_stripped),
 };
 
-static const struct ionic_stat_desc ionic_txq_stats_desc[] = {
-	IONIC_TX_Q_STAT_DESC(stop),
-	IONIC_TX_Q_STAT_DESC(wake),
-	IONIC_TX_Q_STAT_DESC(drop),
-	IONIC_TX_Q_STAT_DESC(dbell_count),
-};
-
-static const struct ionic_stat_desc ionic_dbg_cq_stats_desc[] = {
-	IONIC_CQ_STAT_DESC(compl_count),
-};
-
-static const struct ionic_stat_desc ionic_dbg_intr_stats_desc[] = {
-	IONIC_INTR_STAT_DESC(rearm_count),
-};
-
-static const struct ionic_stat_desc ionic_dbg_napi_stats_desc[] = {
-	IONIC_NAPI_STAT_DESC(poll_count),
-};
 
 #define IONIC_NUM_LIF_STATS ARRAY_SIZE(ionic_lif_stats_desc)
 #define IONIC_NUM_PORT_STATS ARRAY_SIZE(ionic_port_stats_desc)
 #define IONIC_NUM_TX_STATS ARRAY_SIZE(ionic_tx_stats_desc)
 #define IONIC_NUM_RX_STATS ARRAY_SIZE(ionic_rx_stats_desc)
-#define IONIC_NUM_TX_Q_STATS ARRAY_SIZE(ionic_txq_stats_desc)
-#define IONIC_NUM_DBG_CQ_STATS ARRAY_SIZE(ionic_dbg_cq_stats_desc)
-#define IONIC_NUM_DBG_INTR_STATS ARRAY_SIZE(ionic_dbg_intr_stats_desc)
-#define IONIC_NUM_DBG_NAPI_STATS ARRAY_SIZE(ionic_dbg_napi_stats_desc)
 
 #define MAX_Q(lif)   ((lif)->netdev->real_num_tx_queues)
 
@@ -253,21 +231,6 @@ static u64 ionic_sw_stats_get_count(struct ionic_lif *lif)
 	total += tx_queues * IONIC_NUM_TX_STATS;
 	total += rx_queues * IONIC_NUM_RX_STATS;
 
-	if (test_bit(IONIC_LIF_F_UP, lif->state) &&
-	    test_bit(IONIC_LIF_F_SW_DEBUG_STATS, lif->state)) {
-		/* tx debug stats */
-		total += tx_queues * (IONIC_NUM_DBG_CQ_STATS +
-				      IONIC_NUM_TX_Q_STATS +
-				      IONIC_NUM_DBG_INTR_STATS +
-				      IONIC_MAX_NUM_SG_CNTR);
-
-		/* rx debug stats */
-		total += rx_queues * (IONIC_NUM_DBG_CQ_STATS +
-				      IONIC_NUM_DBG_INTR_STATS +
-				      IONIC_NUM_DBG_NAPI_STATS +
-				      IONIC_MAX_NUM_NAPI_CNTR);
-	}
-
 	return total;
 }
 
@@ -279,22 +242,6 @@ static void ionic_sw_stats_get_tx_strings(struct ionic_lif *lif, u8 **buf,
 	for (i = 0; i < IONIC_NUM_TX_STATS; i++)
 		ethtool_sprintf(buf, "tx_%d_%s", q_num,
 				ionic_tx_stats_desc[i].name);
-
-	if (!test_bit(IONIC_LIF_F_UP, lif->state) ||
-	    !test_bit(IONIC_LIF_F_SW_DEBUG_STATS, lif->state))
-		return;
-
-	for (i = 0; i < IONIC_NUM_TX_Q_STATS; i++)
-		ethtool_sprintf(buf, "txq_%d_%s", q_num,
-				ionic_txq_stats_desc[i].name);
-	for (i = 0; i < IONIC_NUM_DBG_CQ_STATS; i++)
-		ethtool_sprintf(buf, "txq_%d_cq_%s", q_num,
-				ionic_dbg_cq_stats_desc[i].name);
-	for (i = 0; i < IONIC_NUM_DBG_INTR_STATS; i++)
-		ethtool_sprintf(buf, "txq_%d_intr_%s", q_num,
-				ionic_dbg_intr_stats_desc[i].name);
-	for (i = 0; i < IONIC_MAX_NUM_SG_CNTR; i++)
-		ethtool_sprintf(buf, "txq_%d_sg_cntr_%d", q_num, i);
 }
 
 static void ionic_sw_stats_get_rx_strings(struct ionic_lif *lif, u8 **buf,
@@ -305,22 +252,6 @@ static void ionic_sw_stats_get_rx_strings(struct ionic_lif *lif, u8 **buf,
 	for (i = 0; i < IONIC_NUM_RX_STATS; i++)
 		ethtool_sprintf(buf, "rx_%d_%s", q_num,
 				ionic_rx_stats_desc[i].name);
-
-	if (!test_bit(IONIC_LIF_F_UP, lif->state) ||
-	    !test_bit(IONIC_LIF_F_SW_DEBUG_STATS, lif->state))
-		return;
-
-	for (i = 0; i < IONIC_NUM_DBG_CQ_STATS; i++)
-		ethtool_sprintf(buf, "rxq_%d_cq_%s", q_num,
-				ionic_dbg_cq_stats_desc[i].name);
-	for (i = 0; i < IONIC_NUM_DBG_INTR_STATS; i++)
-		ethtool_sprintf(buf, "rxq_%d_intr_%s", q_num,
-				ionic_dbg_intr_stats_desc[i].name);
-	for (i = 0; i < IONIC_NUM_DBG_NAPI_STATS; i++)
-		ethtool_sprintf(buf, "rxq_%d_napi_%s", q_num,
-				ionic_dbg_napi_stats_desc[i].name);
-	for (i = 0; i < IONIC_MAX_NUM_NAPI_CNTR; i++)
-		ethtool_sprintf(buf, "rxq_%d_napi_work_done_%d", q_num, i);
 }
 
 static void ionic_sw_stats_get_strings(struct ionic_lif *lif, u8 **buf)
@@ -350,7 +281,6 @@ static void ionic_sw_stats_get_txq_values(struct ionic_lif *lif, u64 **buf,
 					  int q_num)
 {
 	struct ionic_tx_stats *txstats;
-	struct ionic_qcq *txqcq;
 	int i;
 
 	txstats = &lif->txqstats[q_num];
@@ -359,38 +289,12 @@ static void ionic_sw_stats_get_txq_values(struct ionic_lif *lif, u64 **buf,
 		**buf = IONIC_READ_STAT64(txstats, &ionic_tx_stats_desc[i]);
 		(*buf)++;
 	}
-
-	if (!test_bit(IONIC_LIF_F_UP, lif->state) ||
-	    !test_bit(IONIC_LIF_F_SW_DEBUG_STATS, lif->state))
-		return;
-
-	txqcq = lif->txqcqs[q_num];
-	for (i = 0; i < IONIC_NUM_TX_Q_STATS; i++) {
-		**buf = IONIC_READ_STAT64(&txqcq->q,
-					  &ionic_txq_stats_desc[i]);
-		(*buf)++;
-	}
-	for (i = 0; i < IONIC_NUM_DBG_CQ_STATS; i++) {
-		**buf = IONIC_READ_STAT64(&txqcq->cq,
-					  &ionic_dbg_cq_stats_desc[i]);
-		(*buf)++;
-	}
-	for (i = 0; i < IONIC_NUM_DBG_INTR_STATS; i++) {
-		**buf = IONIC_READ_STAT64(&txqcq->intr,
-					  &ionic_dbg_intr_stats_desc[i]);
-		(*buf)++;
-	}
-	for (i = 0; i < IONIC_MAX_NUM_SG_CNTR; i++) {
-		**buf = txstats->sg_cntr[i];
-		(*buf)++;
-	}
 }
 
 static void ionic_sw_stats_get_rxq_values(struct ionic_lif *lif, u64 **buf,
 					  int q_num)
 {
 	struct ionic_rx_stats *rxstats;
-	struct ionic_qcq *rxqcq;
 	int i;
 
 	rxstats = &lif->rxqstats[q_num];
@@ -399,31 +303,6 @@ static void ionic_sw_stats_get_rxq_values(struct ionic_lif *lif, u64 **buf,
 		**buf = IONIC_READ_STAT64(rxstats, &ionic_rx_stats_desc[i]);
 		(*buf)++;
 	}
-
-	if (!test_bit(IONIC_LIF_F_UP, lif->state) ||
-	    !test_bit(IONIC_LIF_F_SW_DEBUG_STATS, lif->state))
-		return;
-
-	rxqcq = lif->rxqcqs[q_num];
-	for (i = 0; i < IONIC_NUM_DBG_CQ_STATS; i++) {
-		**buf = IONIC_READ_STAT64(&rxqcq->cq,
-					  &ionic_dbg_cq_stats_desc[i]);
-		(*buf)++;
-	}
-	for (i = 0; i < IONIC_NUM_DBG_INTR_STATS; i++) {
-		**buf = IONIC_READ_STAT64(&rxqcq->intr,
-					  &ionic_dbg_intr_stats_desc[i]);
-		(*buf)++;
-	}
-	for (i = 0; i < IONIC_NUM_DBG_NAPI_STATS; i++) {
-		**buf = IONIC_READ_STAT64(&rxqcq->napi_stats,
-					  &ionic_dbg_napi_stats_desc[i]);
-		(*buf)++;
-	}
-	for (i = 0; i < IONIC_MAX_NUM_NAPI_CNTR; i++) {
-		**buf = rxqcq->napi_stats.work_done_cntr[i];
-		(*buf)++;
-	}
 }
 
 static void ionic_sw_stats_get_values(struct ionic_lif *lif, u64 **buf)
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
index 37c39581b659..94384f5d2a22 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
@@ -14,8 +14,6 @@
 static inline void ionic_txq_post(struct ionic_queue *q, bool ring_dbell,
 				  ionic_desc_cb cb_func, void *cb_arg)
 {
-	DEBUG_STATS_TXQ_POST(q, ring_dbell);
-
 	ionic_q_post(q, ring_dbell, cb_func, cb_arg);
 }
 
@@ -23,8 +21,6 @@ static inline void ionic_rxq_post(struct ionic_queue *q, bool ring_dbell,
 				  ionic_desc_cb cb_func, void *cb_arg)
 {
 	ionic_q_post(q, ring_dbell, cb_func, cb_arg);
-
-	DEBUG_STATS_RX_BUFF_CNT(q);
 }
 
 static inline struct netdev_queue *q_to_ndq(struct ionic_queue *q)
@@ -507,8 +503,6 @@ int ionic_tx_napi(struct napi_struct *napi, int budget)
 				   work_done, flags);
 	}
 
-	DEBUG_STATS_NAPI_POLL(qcq, work_done);
-
 	return work_done;
 }
 
@@ -546,8 +540,6 @@ int ionic_rx_napi(struct napi_struct *napi, int budget)
 				   work_done, flags);
 	}
 
-	DEBUG_STATS_NAPI_POLL(qcq, work_done);
-
 	return work_done;
 }
 
@@ -591,9 +583,6 @@ int ionic_txrx_napi(struct napi_struct *napi, int budget)
 				   tx_work_done + rx_work_done, flags);
 	}
 
-	DEBUG_STATS_NAPI_POLL(qcq, rx_work_done);
-	DEBUG_STATS_NAPI_POLL(qcq, tx_work_done);
-
 	return rx_work_done;
 }
 
@@ -735,7 +724,6 @@ static void ionic_tx_clean(struct ionic_queue *q,
 
 	} else if (unlikely(__netif_subqueue_stopped(q->lif->netdev, qi))) {
 		netif_wake_subqueue(q->lif->netdev, qi);
-		q->wake++;
 	}
 
 	desc_info->bytes = skb->len;
@@ -1174,7 +1162,6 @@ static int ionic_maybe_stop_tx(struct ionic_queue *q, int ndescs)
 
 	if (unlikely(!ionic_q_has_space(q, ndescs))) {
 		netif_stop_subqueue(q->lif->netdev, q->index);
-		q->stop++;
 		stopped = 1;
 
 		/* Might race with ionic_tx_clean, check again */
@@ -1269,7 +1256,6 @@ netdev_tx_t ionic_start_xmit(struct sk_buff *skb, struct net_device *netdev)
 	return NETDEV_TX_OK;
 
 err_out_drop:
-	q->stop++;
 	q->drop++;
 	dev_kfree_skb(skb);
 	return NETDEV_TX_OK;
-- 
2.17.1


^ permalink raw reply related	[flat|nested] 9+ messages in thread

* [PATCH v2 net-next 2/7] ionic: check for binary values in FW ver string
  2021-10-01 18:05 [PATCH v2 net-next 0/7] ionic: housekeeping updates Shannon Nelson
  2021-10-01 18:05 ` [PATCH v2 net-next 1/7] ionic: remove debug stats Shannon Nelson
@ 2021-10-01 18:05 ` Shannon Nelson
  2021-10-01 18:05 ` [PATCH v2 net-next 3/7] ionic: move lif mutex setup and delete Shannon Nelson
                   ` (5 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: Shannon Nelson @ 2021-10-01 18:05 UTC (permalink / raw)
  To: davem, netdev, kuba; +Cc: drivers, jtoppins, Shannon Nelson

If the PCI connection is broken, reading the FW version string
will only get 0xff bytes, which shouldn't get printed.  This
checks the first byte and prints only the first 4 bytes
if non-ASCII.

Also, add a limit to the string length printed when a valid
string is found, just in case it is not properly terminated.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
---
 .../net/ethernet/pensando/ionic/ionic_main.c    | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_main.c b/drivers/net/ethernet/pensando/ionic/ionic_main.c
index 6f07bf509efe..b6473c02c041 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_main.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_main.c
@@ -7,6 +7,7 @@
 #include <linux/netdevice.h>
 #include <linux/utsname.h>
 #include <generated/utsrelease.h>
+#include <linux/ctype.h>
 
 #include "ionic.h"
 #include "ionic_bus.h"
@@ -450,13 +451,23 @@ int ionic_identify(struct ionic *ionic)
 	}
 	mutex_unlock(&ionic->dev_cmd_lock);
 
-	dev_info(ionic->dev, "FW: %s\n", idev->dev_info.fw_version);
-
 	if (err) {
-		dev_err(ionic->dev, "Cannot identify ionic: %dn", err);
+		dev_err(ionic->dev, "Cannot identify ionic: %d\n", err);
 		goto err_out;
 	}
 
+	if (isprint(idev->dev_info.fw_version[0]) &&
+	    isascii(idev->dev_info.fw_version[0]))
+		dev_info(ionic->dev, "FW: %.*s\n",
+			 (int)(sizeof(idev->dev_info.fw_version) - 1),
+			 idev->dev_info.fw_version);
+	else
+		dev_info(ionic->dev, "FW: (invalid string) 0x%02x 0x%02x 0x%02x 0x%02x ...\n",
+			 (u8)idev->dev_info.fw_version[0],
+			 (u8)idev->dev_info.fw_version[1],
+			 (u8)idev->dev_info.fw_version[2],
+			 (u8)idev->dev_info.fw_version[3]);
+
 	err = ionic_lif_identify(ionic, IONIC_LIF_TYPE_CLASSIC,
 				 &ionic->ident.lif);
 	if (err) {
-- 
2.17.1


^ permalink raw reply related	[flat|nested] 9+ messages in thread

* [PATCH v2 net-next 3/7] ionic: move lif mutex setup and delete
  2021-10-01 18:05 [PATCH v2 net-next 0/7] ionic: housekeeping updates Shannon Nelson
  2021-10-01 18:05 ` [PATCH v2 net-next 1/7] ionic: remove debug stats Shannon Nelson
  2021-10-01 18:05 ` [PATCH v2 net-next 2/7] ionic: check for binary values in FW ver string Shannon Nelson
@ 2021-10-01 18:05 ` Shannon Nelson
  2021-10-01 18:05 ` [PATCH v2 net-next 4/7] ionic: widen queue_lock use around lif init and deinit Shannon Nelson
                   ` (4 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: Shannon Nelson @ 2021-10-01 18:05 UTC (permalink / raw)
  To: davem, netdev, kuba; +Cc: drivers, jtoppins, Shannon Nelson

Move creation and deletion of lif mutex a level out to
lif creation and delete, rather than in init and deinit.
This assures that nothing will get hung if anything is waiting
on the mutex while the driver is clearing the lif while handling
the fw_down/fw_up cycle.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
---
 drivers/net/ethernet/pensando/ionic/ionic_lif.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
index 381966e8f557..4f28cd3ea454 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
@@ -2890,6 +2890,9 @@ int ionic_lif_alloc(struct ionic *ionic)
 
 	snprintf(lif->name, sizeof(lif->name), "lif%u", lif->index);
 
+	mutex_init(&lif->queue_lock);
+	mutex_init(&lif->config_lock);
+
 	spin_lock_init(&lif->adminq_lock);
 
 	spin_lock_init(&lif->deferred.lock);
@@ -2903,7 +2906,7 @@ int ionic_lif_alloc(struct ionic *ionic)
 	if (!lif->info) {
 		dev_err(dev, "Failed to allocate lif info, aborting\n");
 		err = -ENOMEM;
-		goto err_out_free_netdev;
+		goto err_out_free_mutex;
 	}
 
 	ionic_debugfs_add_lif(lif);
@@ -2938,6 +2941,9 @@ int ionic_lif_alloc(struct ionic *ionic)
 	dma_free_coherent(dev, lif->info_sz, lif->info, lif->info_pa);
 	lif->info = NULL;
 	lif->info_pa = 0;
+err_out_free_mutex:
+	mutex_destroy(&lif->config_lock);
+	mutex_destroy(&lif->queue_lock);
 err_out_free_netdev:
 	free_netdev(lif->netdev);
 	lif = NULL;
@@ -3078,6 +3084,9 @@ void ionic_lif_free(struct ionic_lif *lif)
 	kfree(lif->dbid_inuse);
 	lif->dbid_inuse = NULL;
 
+	mutex_destroy(&lif->config_lock);
+	mutex_destroy(&lif->queue_lock);
+
 	/* free netdev & lif */
 	ionic_debugfs_del_lif(lif);
 	free_netdev(lif->netdev);
@@ -3100,8 +3109,6 @@ void ionic_lif_deinit(struct ionic_lif *lif)
 	ionic_lif_qcq_deinit(lif, lif->notifyqcq);
 	ionic_lif_qcq_deinit(lif, lif->adminqcq);
 
-	mutex_destroy(&lif->config_lock);
-	mutex_destroy(&lif->queue_lock);
 	ionic_lif_reset(lif);
 }
 
@@ -3267,8 +3274,6 @@ int ionic_lif_init(struct ionic_lif *lif)
 		return err;
 
 	lif->hw_index = le16_to_cpu(comp.hw_index);
-	mutex_init(&lif->queue_lock);
-	mutex_init(&lif->config_lock);
 
 	/* now that we have the hw_index we can figure out our doorbell page */
 	lif->dbid_count = le32_to_cpu(lif->ionic->ident.dev.ndbpgs_per_lif);
-- 
2.17.1


^ permalink raw reply related	[flat|nested] 9+ messages in thread

* [PATCH v2 net-next 4/7] ionic: widen queue_lock use around lif init and deinit
  2021-10-01 18:05 [PATCH v2 net-next 0/7] ionic: housekeeping updates Shannon Nelson
                   ` (2 preceding siblings ...)
  2021-10-01 18:05 ` [PATCH v2 net-next 3/7] ionic: move lif mutex setup and delete Shannon Nelson
@ 2021-10-01 18:05 ` Shannon Nelson
  2021-10-01 18:05 ` [PATCH v2 net-next 5/7] ionic: add polling to adminq wait Shannon Nelson
                   ` (3 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: Shannon Nelson @ 2021-10-01 18:05 UTC (permalink / raw)
  To: davem, netdev, kuba; +Cc: drivers, jtoppins, Shannon Nelson

Widen the coverage of the queue_lock to be sure the lif init
and lif deinit actions are protected.  This addresses a hang
seen when a Tx Timeout action was attempted at the same time
as a FW Reset was started.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
---
 drivers/net/ethernet/pensando/ionic/ionic_lif.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
index 4f28cd3ea454..5efa9f168830 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
@@ -2974,11 +2974,10 @@ static void ionic_lif_handle_fw_down(struct ionic_lif *lif)
 
 	netif_device_detach(lif->netdev);
 
+	mutex_lock(&lif->queue_lock);
 	if (test_bit(IONIC_LIF_F_UP, lif->state)) {
 		dev_info(ionic->dev, "Surprise FW stop, stopping queues\n");
-		mutex_lock(&lif->queue_lock);
 		ionic_stop_queues(lif);
-		mutex_unlock(&lif->queue_lock);
 	}
 
 	if (netif_running(lif->netdev)) {
@@ -2989,6 +2988,8 @@ static void ionic_lif_handle_fw_down(struct ionic_lif *lif)
 	ionic_reset(ionic);
 	ionic_qcqs_free(lif);
 
+	mutex_unlock(&lif->queue_lock);
+
 	dev_info(ionic->dev, "FW Down: LIFs stopped\n");
 }
 
@@ -3012,9 +3013,12 @@ static void ionic_lif_handle_fw_up(struct ionic_lif *lif)
 	err = ionic_port_init(ionic);
 	if (err)
 		goto err_out;
+
+	mutex_lock(&lif->queue_lock);
+
 	err = ionic_qcqs_alloc(lif);
 	if (err)
-		goto err_out;
+		goto err_unlock;
 
 	err = ionic_lif_init(lif);
 	if (err)
@@ -3035,6 +3039,8 @@ static void ionic_lif_handle_fw_up(struct ionic_lif *lif)
 			goto err_txrx_free;
 	}
 
+	mutex_unlock(&lif->queue_lock);
+
 	clear_bit(IONIC_LIF_F_FW_RESET, lif->state);
 	ionic_link_status_check_request(lif, CAN_SLEEP);
 	netif_device_attach(lif->netdev);
@@ -3051,6 +3057,8 @@ static void ionic_lif_handle_fw_up(struct ionic_lif *lif)
 	ionic_lif_deinit(lif);
 err_qcqs_free:
 	ionic_qcqs_free(lif);
+err_unlock:
+	mutex_unlock(&lif->queue_lock);
 err_out:
 	dev_err(ionic->dev, "FW Up: LIFs restart failed - err %d\n", err);
 }
-- 
2.17.1


^ permalink raw reply related	[flat|nested] 9+ messages in thread

* [PATCH v2 net-next 5/7] ionic: add polling to adminq wait
  2021-10-01 18:05 [PATCH v2 net-next 0/7] ionic: housekeeping updates Shannon Nelson
                   ` (3 preceding siblings ...)
  2021-10-01 18:05 ` [PATCH v2 net-next 4/7] ionic: widen queue_lock use around lif init and deinit Shannon Nelson
@ 2021-10-01 18:05 ` Shannon Nelson
  2021-10-01 18:05 ` [PATCH v2 net-next 6/7] ionic: have ionic_qcq_disable decide on sending to hardware Shannon Nelson
                   ` (2 subsequent siblings)
  7 siblings, 0 replies; 9+ messages in thread
From: Shannon Nelson @ 2021-10-01 18:05 UTC (permalink / raw)
  To: davem, netdev, kuba; +Cc: drivers, jtoppins, Shannon Nelson

Split the adminq wait into smaller polling periods in order
to watch for broken firmware and not have to wait for the full
adminq devcmd_timeout.

Generally, adminq commands take fewer than 2 msecs.  If the
FW is busy they can take longer, but usually still under 100
msecs.  We set the polling period to 100 msecs in order to
start snooping on FW status when a command is taking longer
than usual.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
---
 drivers/net/ethernet/pensando/ionic/ionic.h   |  1 +
 .../net/ethernet/pensando/ionic/ionic_main.c  | 36 +++++++++++++++----
 2 files changed, 31 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/pensando/ionic/ionic.h b/drivers/net/ethernet/pensando/ionic/ionic.h
index 66204106f83e..d570d03b23f6 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic.h
+++ b/drivers/net/ethernet/pensando/ionic/ionic.h
@@ -19,6 +19,7 @@ struct ionic_lif;
 #define PCI_DEVICE_ID_PENSANDO_IONIC_ETH_VF	0x1003
 
 #define DEVCMD_TIMEOUT  10
+#define IONIC_ADMINQ_TIME_SLICE		msecs_to_jiffies(100)
 
 #define IONIC_PHC_UPDATE_NS	10000000000	    /* 10s in nanoseconds */
 #define NORMAL_PPB		1000000000	    /* one billion parts per billion */
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_main.c b/drivers/net/ethernet/pensando/ionic/ionic_main.c
index b6473c02c041..bb49f1b8ef67 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_main.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_main.c
@@ -301,21 +301,45 @@ int ionic_adminq_post(struct ionic_lif *lif, struct ionic_admin_ctx *ctx)
 int ionic_adminq_wait(struct ionic_lif *lif, struct ionic_admin_ctx *ctx, int err)
 {
 	struct net_device *netdev = lif->netdev;
+	unsigned long time_limit;
+	unsigned long time_start;
+	unsigned long time_done;
 	unsigned long remaining;
 	const char *name;
 
+	name = ionic_opcode_to_str(ctx->cmd.cmd.opcode);
+
 	if (err) {
-		if (!test_bit(IONIC_LIF_F_FW_RESET, lif->state)) {
-			name = ionic_opcode_to_str(ctx->cmd.cmd.opcode);
+		if (!test_bit(IONIC_LIF_F_FW_RESET, lif->state))
 			netdev_err(netdev, "Posting of %s (%d) failed: %d\n",
 				   name, ctx->cmd.cmd.opcode, err);
-		}
 		return err;
 	}
 
-	remaining = wait_for_completion_timeout(&ctx->work,
-						HZ * (ulong)DEVCMD_TIMEOUT);
-	return ionic_adminq_check_err(lif, ctx, (remaining == 0));
+	time_start = jiffies;
+	time_limit = time_start + HZ * (ulong)DEVCMD_TIMEOUT;
+	do {
+		remaining = wait_for_completion_timeout(&ctx->work,
+							IONIC_ADMINQ_TIME_SLICE);
+
+		/* check for done */
+		if (remaining)
+			break;
+
+		/* interrupt the wait if FW stopped */
+		if (test_bit(IONIC_LIF_F_FW_RESET, lif->state)) {
+			netdev_err(netdev, "%s (%d) interrupted, FW in reset\n",
+				   name, ctx->cmd.cmd.opcode);
+			return -ENXIO;
+		}
+
+	} while (time_before(jiffies, time_limit));
+	time_done = jiffies;
+
+	dev_dbg(lif->ionic->dev, "%s: elapsed %d msecs\n",
+		__func__, jiffies_to_msecs(time_done - time_start));
+
+	return ionic_adminq_check_err(lif, ctx, time_after_eq(time_done, time_limit));
 }
 
 int ionic_adminq_post_wait(struct ionic_lif *lif, struct ionic_admin_ctx *ctx)
-- 
2.17.1


^ permalink raw reply related	[flat|nested] 9+ messages in thread

* [PATCH v2 net-next 6/7] ionic: have ionic_qcq_disable decide on sending to hardware
  2021-10-01 18:05 [PATCH v2 net-next 0/7] ionic: housekeeping updates Shannon Nelson
                   ` (4 preceding siblings ...)
  2021-10-01 18:05 ` [PATCH v2 net-next 5/7] ionic: add polling to adminq wait Shannon Nelson
@ 2021-10-01 18:05 ` Shannon Nelson
  2021-10-01 18:05 ` [PATCH v2 net-next 7/7] ionic: add lif param to ionic_qcq_disable Shannon Nelson
  2021-10-02 13:10 ` [PATCH v2 net-next 0/7] ionic: housekeeping updates patchwork-bot+netdevbpf
  7 siblings, 0 replies; 9+ messages in thread
From: Shannon Nelson @ 2021-10-01 18:05 UTC (permalink / raw)
  To: davem, netdev, kuba; +Cc: drivers, jtoppins, Shannon Nelson

Simplify the code a little by keeping the send_to_hw decision
inside of ionic_qcq_disable rather than in the callers.  Also,
add ENXIO to the decision expression.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
---
 .../net/ethernet/pensando/ionic/ionic_lif.c   | 39 ++++++++++---------
 1 file changed, 20 insertions(+), 19 deletions(-)

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
index 5efa9f168830..16d98bb55178 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
@@ -287,11 +287,10 @@ static int ionic_qcq_enable(struct ionic_qcq *qcq)
 	return ionic_adminq_post_wait(lif, &ctx);
 }
 
-static int ionic_qcq_disable(struct ionic_qcq *qcq, bool send_to_hw)
+static int ionic_qcq_disable(struct ionic_qcq *qcq, int fw_err)
 {
 	struct ionic_queue *q;
 	struct ionic_lif *lif;
-	int err = 0;
 
 	struct ionic_admin_ctx ctx = {
 		.work = COMPLETION_INITIALIZER_ONSTACK(ctx.work),
@@ -318,17 +317,19 @@ static int ionic_qcq_disable(struct ionic_qcq *qcq, bool send_to_hw)
 		napi_disable(&qcq->napi);
 	}
 
-	if (send_to_hw) {
-		ctx.cmd.q_control.lif_index = cpu_to_le16(lif->index);
-		ctx.cmd.q_control.type = q->type;
-		ctx.cmd.q_control.index = cpu_to_le32(q->index);
-		dev_dbg(lif->ionic->dev, "q_disable.index %d q_disable.qtype %d\n",
-			ctx.cmd.q_control.index, ctx.cmd.q_control.type);
+	/* If there was a previous fw communcation error, don't bother with
+	 * sending the adminq command and just return the same error value.
+	 */
+	if (fw_err == -ETIMEDOUT || fw_err == -ENXIO)
+		return fw_err;
 
-		err = ionic_adminq_post_wait(lif, &ctx);
-	}
+	ctx.cmd.q_control.lif_index = cpu_to_le16(lif->index);
+	ctx.cmd.q_control.type = q->type;
+	ctx.cmd.q_control.index = cpu_to_le32(q->index);
+	dev_dbg(lif->ionic->dev, "q_disable.index %d q_disable.qtype %d\n",
+		ctx.cmd.q_control.index, ctx.cmd.q_control.type);
 
-	return err;
+	return ionic_adminq_post_wait(lif, &ctx);
 }
 
 static void ionic_lif_qcq_deinit(struct ionic_lif *lif, struct ionic_qcq *qcq)
@@ -1947,19 +1948,19 @@ static void ionic_txrx_disable(struct ionic_lif *lif)
 
 	if (lif->txqcqs) {
 		for (i = 0; i < lif->nxqs; i++)
-			err = ionic_qcq_disable(lif->txqcqs[i], (err != -ETIMEDOUT));
+			err = ionic_qcq_disable(lif->txqcqs[i], err);
 	}
 
 	if (lif->hwstamp_txq)
-		err = ionic_qcq_disable(lif->hwstamp_txq, (err != -ETIMEDOUT));
+		err = ionic_qcq_disable(lif->hwstamp_txq, err);
 
 	if (lif->rxqcqs) {
 		for (i = 0; i < lif->nxqs; i++)
-			err = ionic_qcq_disable(lif->rxqcqs[i], (err != -ETIMEDOUT));
+			err = ionic_qcq_disable(lif->rxqcqs[i], err);
 	}
 
 	if (lif->hwstamp_rxq)
-		err = ionic_qcq_disable(lif->hwstamp_rxq, (err != -ETIMEDOUT));
+		err = ionic_qcq_disable(lif->hwstamp_rxq, err);
 
 	ionic_lif_quiesce(lif);
 }
@@ -2159,7 +2160,7 @@ static int ionic_txrx_enable(struct ionic_lif *lif)
 
 		err = ionic_qcq_enable(lif->txqcqs[i]);
 		if (err) {
-			derr = ionic_qcq_disable(lif->rxqcqs[i], (err != -ETIMEDOUT));
+			derr = ionic_qcq_disable(lif->rxqcqs[i], err);
 			goto err_out;
 		}
 	}
@@ -2181,13 +2182,13 @@ static int ionic_txrx_enable(struct ionic_lif *lif)
 
 err_out_hwstamp_tx:
 	if (lif->hwstamp_rxq)
-		derr = ionic_qcq_disable(lif->hwstamp_rxq, (derr != -ETIMEDOUT));
+		derr = ionic_qcq_disable(lif->hwstamp_rxq, derr);
 err_out_hwstamp_rx:
 	i = lif->nxqs;
 err_out:
 	while (i--) {
-		derr = ionic_qcq_disable(lif->txqcqs[i], (derr != -ETIMEDOUT));
-		derr = ionic_qcq_disable(lif->rxqcqs[i], (derr != -ETIMEDOUT));
+		derr = ionic_qcq_disable(lif->txqcqs[i], derr);
+		derr = ionic_qcq_disable(lif->rxqcqs[i], derr);
 	}
 
 	return err;
-- 
2.17.1


^ permalink raw reply related	[flat|nested] 9+ messages in thread

* [PATCH v2 net-next 7/7] ionic: add lif param to ionic_qcq_disable
  2021-10-01 18:05 [PATCH v2 net-next 0/7] ionic: housekeeping updates Shannon Nelson
                   ` (5 preceding siblings ...)
  2021-10-01 18:05 ` [PATCH v2 net-next 6/7] ionic: have ionic_qcq_disable decide on sending to hardware Shannon Nelson
@ 2021-10-01 18:05 ` Shannon Nelson
  2021-10-02 13:10 ` [PATCH v2 net-next 0/7] ionic: housekeeping updates patchwork-bot+netdevbpf
  7 siblings, 0 replies; 9+ messages in thread
From: Shannon Nelson @ 2021-10-01 18:05 UTC (permalink / raw)
  To: davem, netdev, kuba; +Cc: drivers, jtoppins, Shannon Nelson

Add the lif parameter for use in an error message, and
to better match the style of most of the functions calls.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
---
 .../net/ethernet/pensando/ionic/ionic_lif.c   | 24 +++++++++----------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
index 16d98bb55178..5c020a263f0c 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
@@ -287,10 +287,9 @@ static int ionic_qcq_enable(struct ionic_qcq *qcq)
 	return ionic_adminq_post_wait(lif, &ctx);
 }
 
-static int ionic_qcq_disable(struct ionic_qcq *qcq, int fw_err)
+static int ionic_qcq_disable(struct ionic_lif *lif, struct ionic_qcq *qcq, int fw_err)
 {
 	struct ionic_queue *q;
-	struct ionic_lif *lif;
 
 	struct ionic_admin_ctx ctx = {
 		.work = COMPLETION_INITIALIZER_ONSTACK(ctx.work),
@@ -300,11 +299,12 @@ static int ionic_qcq_disable(struct ionic_qcq *qcq, int fw_err)
 		},
 	};
 
-	if (!qcq)
+	if (!qcq) {
+		netdev_err(lif->netdev, "%s: bad qcq\n", __func__);
 		return -ENXIO;
+	}
 
 	q = &qcq->q;
-	lif = q->lif;
 
 	if (qcq->flags & IONIC_QCQ_F_INTR) {
 		struct ionic_dev *idev = &lif->ionic->idev;
@@ -1948,19 +1948,19 @@ static void ionic_txrx_disable(struct ionic_lif *lif)
 
 	if (lif->txqcqs) {
 		for (i = 0; i < lif->nxqs; i++)
-			err = ionic_qcq_disable(lif->txqcqs[i], err);
+			err = ionic_qcq_disable(lif, lif->txqcqs[i], err);
 	}
 
 	if (lif->hwstamp_txq)
-		err = ionic_qcq_disable(lif->hwstamp_txq, err);
+		err = ionic_qcq_disable(lif, lif->hwstamp_txq, err);
 
 	if (lif->rxqcqs) {
 		for (i = 0; i < lif->nxqs; i++)
-			err = ionic_qcq_disable(lif->rxqcqs[i], err);
+			err = ionic_qcq_disable(lif, lif->rxqcqs[i], err);
 	}
 
 	if (lif->hwstamp_rxq)
-		err = ionic_qcq_disable(lif->hwstamp_rxq, err);
+		err = ionic_qcq_disable(lif, lif->hwstamp_rxq, err);
 
 	ionic_lif_quiesce(lif);
 }
@@ -2160,7 +2160,7 @@ static int ionic_txrx_enable(struct ionic_lif *lif)
 
 		err = ionic_qcq_enable(lif->txqcqs[i]);
 		if (err) {
-			derr = ionic_qcq_disable(lif->rxqcqs[i], err);
+			derr = ionic_qcq_disable(lif, lif->rxqcqs[i], err);
 			goto err_out;
 		}
 	}
@@ -2182,13 +2182,13 @@ static int ionic_txrx_enable(struct ionic_lif *lif)
 
 err_out_hwstamp_tx:
 	if (lif->hwstamp_rxq)
-		derr = ionic_qcq_disable(lif->hwstamp_rxq, derr);
+		derr = ionic_qcq_disable(lif, lif->hwstamp_rxq, derr);
 err_out_hwstamp_rx:
 	i = lif->nxqs;
 err_out:
 	while (i--) {
-		derr = ionic_qcq_disable(lif->txqcqs[i], derr);
-		derr = ionic_qcq_disable(lif->rxqcqs[i], derr);
+		derr = ionic_qcq_disable(lif, lif->txqcqs[i], derr);
+		derr = ionic_qcq_disable(lif, lif->rxqcqs[i], derr);
 	}
 
 	return err;
-- 
2.17.1


^ permalink raw reply related	[flat|nested] 9+ messages in thread

* Re: [PATCH v2 net-next 0/7] ionic: housekeeping updates
  2021-10-01 18:05 [PATCH v2 net-next 0/7] ionic: housekeeping updates Shannon Nelson
                   ` (6 preceding siblings ...)
  2021-10-01 18:05 ` [PATCH v2 net-next 7/7] ionic: add lif param to ionic_qcq_disable Shannon Nelson
@ 2021-10-02 13:10 ` patchwork-bot+netdevbpf
  7 siblings, 0 replies; 9+ messages in thread
From: patchwork-bot+netdevbpf @ 2021-10-02 13:10 UTC (permalink / raw)
  To: Shannon Nelson; +Cc: davem, netdev, kuba, drivers, jtoppins

Hello:

This series was applied to netdev/net-next.git (refs/heads/master):

On Fri,  1 Oct 2021 11:05:50 -0700 you wrote:
> These are a few changes for code clean up and a couple
> more lock management tweaks.
> 
> v2: rebased
> 
> Shannon Nelson (7):
>   ionic: remove debug stats
>   ionic: check for binary values in FW ver string
>   ionic: move lif mutex setup and delete
>   ionic: widen queue_lock use around lif init and deinit
>   ionic: add polling to adminq wait
>   ionic: have ionic_qcq_disable decide on sending to hardware
>   ionic: add lif param to ionic_qcq_disable
> 
> [...]

Here is the summary with links:
  - [v2,net-next,1/7] ionic: remove debug stats
    https://git.kernel.org/netdev/net-next/c/ebc792e26cb0
  - [v2,net-next,2/7] ionic: check for binary values in FW ver string
    https://git.kernel.org/netdev/net-next/c/36b20b7fb1c3
  - [v2,net-next,3/7] ionic: move lif mutex setup and delete
    https://git.kernel.org/netdev/net-next/c/26671ff92c63
  - [v2,net-next,4/7] ionic: widen queue_lock use around lif init and deinit
    https://git.kernel.org/netdev/net-next/c/2624d95972db
  - [v2,net-next,5/7] ionic: add polling to adminq wait
    https://git.kernel.org/netdev/net-next/c/a095e4775b7c
  - [v2,net-next,6/7] ionic: have ionic_qcq_disable decide on sending to hardware
    https://git.kernel.org/netdev/net-next/c/3a5e0fafefe0
  - [v2,net-next,7/7] ionic: add lif param to ionic_qcq_disable
    https://git.kernel.org/netdev/net-next/c/7dd22a864e0c

You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html



^ permalink raw reply	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2021-10-02 13:10 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-10-01 18:05 [PATCH v2 net-next 0/7] ionic: housekeeping updates Shannon Nelson
2021-10-01 18:05 ` [PATCH v2 net-next 1/7] ionic: remove debug stats Shannon Nelson
2021-10-01 18:05 ` [PATCH v2 net-next 2/7] ionic: check for binary values in FW ver string Shannon Nelson
2021-10-01 18:05 ` [PATCH v2 net-next 3/7] ionic: move lif mutex setup and delete Shannon Nelson
2021-10-01 18:05 ` [PATCH v2 net-next 4/7] ionic: widen queue_lock use around lif init and deinit Shannon Nelson
2021-10-01 18:05 ` [PATCH v2 net-next 5/7] ionic: add polling to adminq wait Shannon Nelson
2021-10-01 18:05 ` [PATCH v2 net-next 6/7] ionic: have ionic_qcq_disable decide on sending to hardware Shannon Nelson
2021-10-01 18:05 ` [PATCH v2 net-next 7/7] ionic: add lif param to ionic_qcq_disable Shannon Nelson
2021-10-02 13:10 ` [PATCH v2 net-next 0/7] ionic: housekeeping updates patchwork-bot+netdevbpf

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