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gve: Add workqueue and reset support

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Add support for the workqueue to handle management interrupts and
support for resets.

Signed-off-by: Catherine Sullivan <csully@google.com>
Signed-off-by: Sagi Shahar <sagis@google.com>
Signed-off-by: Jon Olson <jonolson@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Luigi Rizzo <lrizzo@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Catherine Sullivan
2019-07-01 15:57:54 -07:00
committed by David S. Miller
parent f5cedc84a3
commit 9e5f7d26a4
4 changed files with 260 additions and 8 deletions
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62
drivers/net/ethernet/google/gve/gve.h
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@@ -205,9 +205,18 @@ struct gve_priv {
u32 adminq_mask; /* masks prod_cnt to adminq size */
u32 adminq_prod_cnt; /* free-running count of AQ cmds executed */
struct workqueue_struct *gve_wq;
struct work_struct service_task;
unsigned long service_task_flags;
unsigned long state_flags;
};
enum gve_service_task_flags {
GVE_PRIV_FLAGS_DO_RESET = BIT(1),
GVE_PRIV_FLAGS_RESET_IN_PROGRESS = BIT(2),
GVE_PRIV_FLAGS_PROBE_IN_PROGRESS = BIT(3),
};
enum gve_state_flags {
GVE_PRIV_FLAGS_ADMIN_QUEUE_OK = BIT(1),
GVE_PRIV_FLAGS_DEVICE_RESOURCES_OK = BIT(2),
@@ -215,6 +224,53 @@ enum gve_state_flags {
GVE_PRIV_FLAGS_NAPI_ENABLED = BIT(4),
};
static inline bool gve_get_do_reset(struct gve_priv *priv)
{
return test_bit(GVE_PRIV_FLAGS_DO_RESET, &priv->service_task_flags);
}
static inline void gve_set_do_reset(struct gve_priv *priv)
{
set_bit(GVE_PRIV_FLAGS_DO_RESET, &priv->service_task_flags);
}
static inline void gve_clear_do_reset(struct gve_priv *priv)
{
clear_bit(GVE_PRIV_FLAGS_DO_RESET, &priv->service_task_flags);
}
static inline bool gve_get_reset_in_progress(struct gve_priv *priv)
{
return test_bit(GVE_PRIV_FLAGS_RESET_IN_PROGRESS,
&priv->service_task_flags);
}
static inline void gve_set_reset_in_progress(struct gve_priv *priv)
{
set_bit(GVE_PRIV_FLAGS_RESET_IN_PROGRESS, &priv->service_task_flags);
}
static inline void gve_clear_reset_in_progress(struct gve_priv *priv)
{
clear_bit(GVE_PRIV_FLAGS_RESET_IN_PROGRESS, &priv->service_task_flags);
}
static inline bool gve_get_probe_in_progress(struct gve_priv *priv)
{
return test_bit(GVE_PRIV_FLAGS_PROBE_IN_PROGRESS,
&priv->service_task_flags);
}
static inline void gve_set_probe_in_progress(struct gve_priv *priv)
{
set_bit(GVE_PRIV_FLAGS_PROBE_IN_PROGRESS, &priv->service_task_flags);
}
static inline void gve_clear_probe_in_progress(struct gve_priv *priv)
{
clear_bit(GVE_PRIV_FLAGS_PROBE_IN_PROGRESS, &priv->service_task_flags);
}
static inline bool gve_get_admin_queue_ok(struct gve_priv *priv)
{
return test_bit(GVE_PRIV_FLAGS_ADMIN_QUEUE_OK, &priv->state_flags);
@@ -390,4 +446,10 @@ int gve_rx_alloc_rings(struct gve_priv *priv);
void gve_rx_free_rings(struct gve_priv *priv);
bool gve_clean_rx_done(struct gve_rx_ring *rx, int budget,
netdev_features_t feat);
/* Reset */
void gve_schedule_reset(struct gve_priv *priv);
int gve_reset(struct gve_priv *priv, bool attempt_teardown);
int gve_adjust_queues(struct gve_priv *priv,
struct gve_queue_config new_rx_config,
struct gve_queue_config new_tx_config);
#endif /* _GVE_H_ */