1 files changed, 188 insertions, 124 deletions

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.h b/drivers/net/ethernet/pensando/ionic/ionic_lif.h
index 9c5a7dd45f9d..a53984bf3544 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.h
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.h
@@ -4,40 +4,53 @@
 #ifndef _IONIC_LIF_H_
 #define _IONIC_LIF_H_
 
+#include <linux/ptp_clock_kernel.h>
+#include <linux/timecounter.h>
+#include <uapi/linux/net_tstamp.h>
+#include <linux/dim.h>
 #include <linux/pci.h>
 #include "ionic_rx_filter.h"
 
 #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
+#define CAN_NOT_SLEEP	false
+
 #define IONIC_RX_COPYBREAK_DEFAULT	256
+#define IONIC_TX_BUDGET_DEFAULT		256
 
 struct ionic_tx_stats {
-	u64 dma_map_err;
 	u64 pkts;
 	u64 bytes;
-	u64 clean;
-	u64 linearize;
-	u64 no_csum;
+	u64 csum_none;
 	u64 csum;
-	u64 crc32_csum;
 	u64 tso;
+	u64 tso_bytes;
 	u64 frags;
-	u64 sg_cntr[IONIC_MAX_NUM_SG_CNTR];
+	u64 vlan_inserted;
+	u64 clean;
+	u64 linearize;
+	u64 crc32_csum;
+	u64 dma_map_err;
+	u64 hwstamp_valid;
+	u64 hwstamp_invalid;
 };
 
 struct ionic_rx_stats {
-	u64 dma_map_err;
-	u64 alloc_err;
 	u64 pkts;
 	u64 bytes;
 	u64 csum_none;
 	u64 csum_complete;
-	u64 csum_error;
-	u64 buffers_posted;
 	u64 dropped;
+	u64 vlan_stripped;
+	u64 csum_error;
+	u64 dma_map_err;
+	u64 alloc_err;
+	u64 hwstamp_valid;
+	u64 hwstamp_invalid;
 };
 
 #define IONIC_QCQ_F_INITED		BIT(0)
@@ -47,47 +60,33 @@ 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_q_stats {
-	union {
-		struct ionic_tx_stats tx;
-		struct ionic_rx_stats rx;
-	};
-};
-
 struct ionic_qcq {
-	void *base;
-	dma_addr_t base_pa;
-	unsigned int total_size;
+	void *q_base;
+	dma_addr_t q_base_pa;
+	u32 q_size;
+	void *cq_base;
+	dma_addr_t cq_base_pa;
+	u32 cq_size;
+	void *sg_base;
+	dma_addr_t sg_base_pa;
+	u32 sg_size;
+	struct dim dim;
 	struct ionic_queue q;
 	struct ionic_cq cq;
 	struct ionic_intr_info intr;
 	struct napi_struct napi;
-	struct ionic_napi_stats napi_stats;
-	struct ionic_q_stats *stats;
 	unsigned int flags;
 	struct dentry *dentry;
 };
 
-struct ionic_qcqst {
-	struct ionic_qcq *qcq;
-	struct ionic_q_stats *stats;
-};
-
 #define q_to_qcq(q)		container_of(q, struct ionic_qcq, q)
-#define q_to_tx_stats(q)	(&q_to_qcq(q)->stats->tx)
-#define q_to_rx_stats(q)	(&q_to_qcq(q)->stats->rx)
+#define q_to_tx_stats(q)	(&(q)->lif->txqstats[(q)->index])
+#define q_to_rx_stats(q)	(&(q)->lif->rxqstats[(q)->index])
 #define napi_to_qcq(napi)	container_of(napi, struct ionic_qcq, napi)
 #define napi_to_cq(napi)	(&napi_to_qcq(napi)->cq)
 
 enum ionic_deferred_work_type {
 	IONIC_DW_TYPE_RX_MODE,
-	IONIC_DW_TYPE_RX_ADDR_ADD,
-	IONIC_DW_TYPE_RX_ADDR_DEL,
 	IONIC_DW_TYPE_LINK_STATUS,
 	IONIC_DW_TYPE_LIF_RESET,
 };
@@ -96,8 +95,8 @@ struct ionic_deferred_work {
 	struct list_head list;
 	enum ionic_deferred_work_type type;
 	union {
-		unsigned int rx_mode;
 		u8 addr[ETH_ALEN];
+		u8 fw_status;
 	};
 };
 
@@ -113,57 +112,96 @@ struct ionic_lif_sw_stats {
 	u64 rx_packets;
 	u64 rx_bytes;
 	u64 tx_tso;
-	u64 tx_no_csum;
+	u64 tx_tso_bytes;
+	u64 tx_csum_none;
 	u64 tx_csum;
 	u64 rx_csum_none;
 	u64 rx_csum_complete;
 	u64 rx_csum_error;
+	u64 tx_hwstamp_valid;
+	u64 tx_hwstamp_invalid;
+	u64 rx_hwstamp_valid;
+	u64 rx_hwstamp_invalid;
+	u64 hw_tx_dropped;
+	u64 hw_rx_dropped;
+	u64 hw_rx_over_errors;
+	u64 hw_rx_missed_errors;
+	u64 hw_tx_aborted_errors;
 };
 
 enum ionic_lif_state_flags {
-	IONIC_LIF_INITED,
-	IONIC_LIF_SW_DEBUG_STATS,
-	IONIC_LIF_UP,
-	IONIC_LIF_LINK_CHECK_REQUESTED,
-	IONIC_LIF_QUEUE_RESET,
+	IONIC_LIF_F_INITED,
+	IONIC_LIF_F_UP,
+	IONIC_LIF_F_LINK_CHECK_REQUESTED,
+	IONIC_LIF_F_FILTER_SYNC_NEEDED,
+	IONIC_LIF_F_FW_RESET,
+	IONIC_LIF_F_FW_STOPPING,
+	IONIC_LIF_F_SPLIT_INTR,
+	IONIC_LIF_F_BROKEN,
+	IONIC_LIF_F_TX_DIM_INTR,
+	IONIC_LIF_F_RX_DIM_INTR,
 
 	/* leave this as last */
-	IONIC_LIF_STATE_SIZE
+	IONIC_LIF_F_STATE_SIZE
+};
+
+struct ionic_qtype_info {
+	u8  version;
+	u8  supported;
+	u64 features;
+	u16 desc_sz;
+	u16 comp_sz;
+	u16 sg_desc_sz;
+	u16 max_sg_elems;
+	u16 sg_desc_stride;
 };
 
+struct ionic_phc;
+
 #define IONIC_LIF_NAME_MAX_SZ		32
 struct ionic_lif {
-	char name[IONIC_LIF_NAME_MAX_SZ];
-	struct list_head list;
 	struct net_device *netdev;
-	DECLARE_BITMAP(state, IONIC_LIF_STATE_SIZE);
+	DECLARE_BITMAP(state, IONIC_LIF_F_STATE_SIZE);
 	struct ionic *ionic;
-	bool registered;
 	unsigned int index;
 	unsigned int hw_index;
-	unsigned int kern_pid;
-	u64 __iomem *kern_dbpage;
+	struct mutex queue_lock;	/* lock for queue structures */
+	struct mutex config_lock;	/* lock for config actions */
 	spinlock_t adminq_lock;		/* lock for AdminQ operations */
 	struct ionic_qcq *adminqcq;
 	struct ionic_qcq *notifyqcq;
-	struct ionic_qcqst *txqcqs;
-	struct ionic_qcqst *rxqcqs;
+	struct ionic_qcq **txqcqs;
+	struct ionic_qcq *hwstamp_txq;
+	struct ionic_tx_stats *txqstats;
+	struct ionic_qcq **rxqcqs;
+	struct ionic_qcq *hwstamp_rxq;
+	struct ionic_rx_stats *rxqstats;
+	struct ionic_deferred deferred;
+	struct work_struct tx_timeout_work;
 	u64 last_eid;
+	unsigned int kern_pid;
+	u64 __iomem *kern_dbpage;
 	unsigned int neqs;
 	unsigned int nxqs;
 	unsigned int ntxq_descs;
 	unsigned int nrxq_descs;
 	u32 rx_copybreak;
-	unsigned int rx_mode;
+	u64 rxq_features;
+	u16 rx_mode;
 	u64 hw_features;
-	bool mc_overflow;
+	bool registered;
+	u16 lif_type;
 	unsigned int nmcast;
-	bool uc_overflow;
 	unsigned int nucast;
+	unsigned int nvlans;
+	unsigned int max_vlans;
+	char name[IONIC_LIF_NAME_MAX_SZ];
 
+	union ionic_lif_identity *identity;
 	struct ionic_lif_info *info;
 	dma_addr_t info_pa;
 	u32 info_sz;
+	struct ionic_qtype_info qtype_info[IONIC_QTYPE_MAX];
 
 	u16 rss_types;
 	u8 rss_hash_key[IONIC_RSS_HASH_KEY_SIZE];
@@ -172,28 +210,51 @@ struct ionic_lif {
 	u32 rss_ind_tbl_sz;
 
 	struct ionic_rx_filters rx_filters;
-	struct ionic_deferred deferred;
-	unsigned long *dbid_inuse;
-	unsigned int dbid_count;
-	struct dentry *dentry;
 	u32 rx_coalesce_usecs;		/* what the user asked for */
 	u32 rx_coalesce_hw;		/* what the hw is using */
+	u32 tx_coalesce_usecs;		/* what the user asked for */
+	u32 tx_coalesce_hw;		/* what the hw is using */
+	unsigned int dbid_count;
 
-	u32 flags;
-	struct work_struct tx_timeout_work;
+	struct ionic_phc *phc;
+
+	struct dentry *dentry;
 };
 
-#define lif_to_txqcq(lif, i)	((lif)->txqcqs[i].qcq)
-#define lif_to_rxqcq(lif, i)	((lif)->rxqcqs[i].qcq)
-#define lif_to_txstats(lif, i)	((lif)->txqcqs[i].stats->tx)
-#define lif_to_rxstats(lif, i)	((lif)->rxqcqs[i].stats->rx)
-#define lif_to_txq(lif, i)	(&lif_to_txqcq((lif), i)->q)
-#define lif_to_rxq(lif, i)	(&lif_to_txqcq((lif), i)->q)
+struct ionic_phc {
+	spinlock_t lock; /* lock for cc and tc */
+	struct cyclecounter cc;
+	struct timecounter tc;
+
+	struct mutex config_lock; /* lock for ts_config */
+	struct hwtstamp_config ts_config;
+	u64 ts_config_rx_filt;
+	u32 ts_config_tx_mode;
+
+	u32 init_cc_mult;
+	long aux_work_delay;
+
+	struct ptp_clock_info ptp_info;
+	struct ptp_clock *ptp;
+	struct ionic_lif *lif;
+};
 
-/* return 0 if successfully set the bit, else non-zero */
-static inline int ionic_wait_for_bit(struct ionic_lif *lif, int bitname)
+struct ionic_queue_params {
+	unsigned int nxqs;
+	unsigned int ntxq_descs;
+	unsigned int nrxq_descs;
+	unsigned int intr_split;
+	u64 rxq_features;
+};
+
+static inline void ionic_init_queue_params(struct ionic_lif *lif,
+					   struct ionic_queue_params *qparam)
 {
-	return wait_on_bit_lock(lif->state, bitname, TASK_INTERRUPTIBLE);
+	qparam->nxqs = lif->nxqs;
+	qparam->ntxq_descs = lif->ntxq_descs;
+	qparam->nrxq_descs = lif->nrxq_descs;
+	qparam->intr_split = test_bit(IONIC_LIF_F_SPLIT_INTR, lif->state);
+	qparam->rxq_features = lif->rxq_features;
 }
 
 static inline u32 ionic_coal_usec_to_hw(struct ionic *ionic, u32 usecs)
@@ -212,66 +273,69 @@ static inline u32 ionic_coal_usec_to_hw(struct ionic *ionic, u32 usecs)
 	return (usecs * mult) / div;
 }
 
-static inline u32 ionic_coal_hw_to_usec(struct ionic *ionic, u32 units)
-{
-	u32 mult = le32_to_cpu(ionic->ident.dev.intr_coal_mult);
-	u32 div = le32_to_cpu(ionic->ident.dev.intr_coal_div);
-
-	/* Div-by-zero should never be an issue, but check anyway */
-	if (!div || !mult)
-		return 0;
-
-	/* Convert from device units to usec */
-	return (units * div) / mult;
-}
-
-int ionic_lifs_alloc(struct ionic *ionic);
-void ionic_lifs_free(struct ionic *ionic);
-void ionic_lifs_deinit(struct ionic *ionic);
-int ionic_lifs_init(struct ionic *ionic);
-int ionic_lifs_register(struct ionic *ionic);
-void ionic_lifs_unregister(struct ionic *ionic);
+void ionic_link_status_check_request(struct ionic_lif *lif, bool can_sleep);
+void ionic_get_stats64(struct net_device *netdev,
+		       struct rtnl_link_stats64 *ns);
+void ionic_lif_deferred_enqueue(struct ionic_deferred *def,
+				struct ionic_deferred_work *work);
+int ionic_lif_alloc(struct ionic *ionic);
+int ionic_lif_init(struct ionic_lif *lif);
+void ionic_lif_free(struct ionic_lif *lif);
+void ionic_lif_deinit(struct ionic_lif *lif);
+
+int ionic_lif_addr_add(struct ionic_lif *lif, const u8 *addr);
+int ionic_lif_addr_del(struct ionic_lif *lif, const u8 *addr);
+
+int ionic_lif_register(struct ionic_lif *lif);
+void ionic_lif_unregister(struct ionic_lif *lif);
 int ionic_lif_identify(struct ionic *ionic, u8 lif_type,
 		       union ionic_lif_identity *lif_ident);
-int ionic_lifs_size(struct ionic *ionic);
-int ionic_lif_rss_config(struct ionic_lif *lif, u16 types,
-			 const u8 *key, const u32 *indir);
-
-int ionic_open(struct net_device *netdev);
-int ionic_stop(struct net_device *netdev);
-int ionic_reset_queues(struct ionic_lif *lif);
-
-static inline void debug_stats_txq_post(struct ionic_qcq *qcq,
-					struct ionic_txq_desc *desc, bool dbell)
+int ionic_lif_size(struct ionic *ionic);
+
+#if IS_ENABLED(CONFIG_PTP_1588_CLOCK)
+void ionic_lif_hwstamp_replay(struct ionic_lif *lif);
+void ionic_lif_hwstamp_recreate_queues(struct ionic_lif *lif);
+int ionic_lif_hwstamp_set(struct ionic_lif *lif, struct ifreq *ifr);
+int ionic_lif_hwstamp_get(struct ionic_lif *lif, struct ifreq *ifr);
+ktime_t ionic_lif_phc_ktime(struct ionic_lif *lif, u64 counter);
+void ionic_lif_register_phc(struct ionic_lif *lif);
+void ionic_lif_unregister_phc(struct ionic_lif *lif);
+void ionic_lif_alloc_phc(struct ionic_lif *lif);
+void ionic_lif_free_phc(struct ionic_lif *lif);
+#else
+static inline void ionic_lif_hwstamp_replay(struct ionic_lif *lif) {}
+static inline void ionic_lif_hwstamp_recreate_queues(struct ionic_lif *lif) {}
+
+static inline int ionic_lif_hwstamp_set(struct ionic_lif *lif, struct ifreq *ifr)
 {
-	u8 num_sg_elems = ((le64_to_cpu(desc->cmd) >> IONIC_TXQ_DESC_NSGE_SHIFT)
-						& IONIC_TXQ_DESC_NSGE_MASK);
-
-	qcq->q.dbell_count += dbell;
-
-	if (num_sg_elems > (IONIC_MAX_NUM_SG_CNTR - 1))
-		num_sg_elems = IONIC_MAX_NUM_SG_CNTR - 1;
-
-	qcq->stats->tx.sg_cntr[num_sg_elems]++;
+	return -EOPNOTSUPP;
 }
 
-static inline void debug_stats_napi_poll(struct ionic_qcq *qcq,
-					 unsigned int work_done)
+static inline int ionic_lif_hwstamp_get(struct ionic_lif *lif, struct ifreq *ifr)
 {
-	qcq->napi_stats.poll_count++;
-
-	if (work_done > (IONIC_MAX_NUM_NAPI_CNTR - 1))
-		work_done = IONIC_MAX_NUM_NAPI_CNTR - 1;
+	return -EOPNOTSUPP;
+}
 
-	qcq->napi_stats.work_done_cntr[work_done]++;
+static inline ktime_t ionic_lif_phc_ktime(struct ionic_lif *lif, u64 counter)
+{
+	return ns_to_ktime(0);
 }
 
-#define DEBUG_STATS_CQE_CNT(cq)		((cq)->compl_count++)
-#define DEBUG_STATS_RX_BUFF_CNT(qcq)	((qcq)->stats->rx.buffers_posted++)
-#define DEBUG_STATS_INTR_REARM(intr)	((intr)->rearm_count++)
-#define DEBUG_STATS_TXQ_POST(qcq, txdesc, dbell) \
-	debug_stats_txq_post(qcq, txdesc, dbell)
-#define DEBUG_STATS_NAPI_POLL(qcq, work_done) \
-	debug_stats_napi_poll(qcq, work_done)
+static inline void ionic_lif_register_phc(struct ionic_lif *lif) {}
+static inline void ionic_lif_unregister_phc(struct ionic_lif *lif) {}
+static inline void ionic_lif_alloc_phc(struct ionic_lif *lif) {}
+static inline void ionic_lif_free_phc(struct ionic_lif *lif) {}
+#endif
+
+int ionic_lif_create_hwstamp_txq(struct ionic_lif *lif);
+int ionic_lif_create_hwstamp_rxq(struct ionic_lif *lif);
+int ionic_lif_config_hwstamp_rxq_all(struct ionic_lif *lif, bool rx_all);
+int ionic_lif_set_hwstamp_txmode(struct ionic_lif *lif, u16 txstamp_mode);
+int ionic_lif_set_hwstamp_rxfilt(struct ionic_lif *lif, u64 pkt_class);
 
+int ionic_lif_rss_config(struct ionic_lif *lif, u16 types,
+			 const u8 *key, const u32 *indir);
+void ionic_lif_rx_mode(struct ionic_lif *lif);
+int ionic_reconfigure_queues(struct ionic_lif *lif,
+			     struct ionic_queue_params *qparam);
 #endif /* _IONIC_LIF_H_ */