176 lines
4.1 KiB
C
176 lines
4.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/* Copyright(c) 2017 - 2019 Pensando Systems, Inc */
|
|
|
|
#ifndef _IONIC_LIF_H_
|
|
#define _IONIC_LIF_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)
|
|
|
|
struct ionic_tx_stats {
|
|
u64 pkts;
|
|
u64 bytes;
|
|
};
|
|
|
|
struct ionic_rx_stats {
|
|
u64 pkts;
|
|
u64 bytes;
|
|
};
|
|
|
|
#define IONIC_QCQ_F_INITED BIT(0)
|
|
#define IONIC_QCQ_F_SG BIT(1)
|
|
#define IONIC_QCQ_F_INTR BIT(2)
|
|
#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;
|
|
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;
|
|
};
|
|
|
|
#define q_to_qcq(q) container_of(q, struct ionic_qcq, q)
|
|
#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,
|
|
};
|
|
|
|
struct ionic_deferred_work {
|
|
struct list_head list;
|
|
enum ionic_deferred_work_type type;
|
|
union {
|
|
unsigned int rx_mode;
|
|
u8 addr[ETH_ALEN];
|
|
};
|
|
};
|
|
|
|
struct ionic_deferred {
|
|
spinlock_t lock; /* lock for deferred work list */
|
|
struct list_head list;
|
|
struct work_struct work;
|
|
};
|
|
|
|
enum ionic_lif_state_flags {
|
|
IONIC_LIF_INITED,
|
|
IONIC_LIF_UP,
|
|
IONIC_LIF_LINK_CHECK_REQUESTED,
|
|
IONIC_LIF_QUEUE_RESET,
|
|
|
|
/* leave this as last */
|
|
IONIC_LIF_STATE_SIZE
|
|
};
|
|
|
|
#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);
|
|
struct ionic *ionic;
|
|
bool registered;
|
|
unsigned int index;
|
|
unsigned int hw_index;
|
|
unsigned int kern_pid;
|
|
u64 __iomem *kern_dbpage;
|
|
spinlock_t adminq_lock; /* lock for AdminQ operations */
|
|
struct ionic_qcq *adminqcq;
|
|
struct ionic_qcq *notifyqcq;
|
|
u64 last_eid;
|
|
unsigned int neqs;
|
|
unsigned int nxqs;
|
|
unsigned int ntxq_descs;
|
|
unsigned int nrxq_descs;
|
|
unsigned int rx_mode;
|
|
u64 hw_features;
|
|
bool mc_overflow;
|
|
unsigned int nmcast;
|
|
bool uc_overflow;
|
|
unsigned int nucast;
|
|
|
|
struct ionic_lif_info *info;
|
|
dma_addr_t info_pa;
|
|
u32 info_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;
|
|
u32 flags;
|
|
};
|
|
|
|
static inline int ionic_wait_for_bit(struct ionic_lif *lif, int bitname)
|
|
{
|
|
unsigned long tlimit = jiffies + HZ;
|
|
|
|
while (test_and_set_bit(bitname, lif->state) &&
|
|
time_before(jiffies, tlimit))
|
|
usleep_range(100, 200);
|
|
|
|
return test_bit(bitname, lif->state);
|
|
}
|
|
|
|
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);
|
|
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_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_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_INTR_REARM(intr) ((intr)->rearm_count++)
|
|
#define DEBUG_STATS_NAPI_POLL(qcq, work_done) \
|
|
debug_stats_napi_poll(qcq, work_done)
|
|
|
|
#endif /* _IONIC_LIF_H_ */
|