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RDMA/bnxt_re: Add Async event handling support

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Using the option provided by Ethernet driver, register for FW Async
event. During probe, while registeriung with Ethernet driver, provide
the ulp hook 'ulp_async_notifier' for receiving the firmware events.

Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Link: https://patch.msgid.link/20250107024553.2926983-3-kalesh-anakkur.purayil@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Kalesh AP 2025-01-07 08:15:50 +05:30 • committed by Leon Romanovsky
parent 184fe6f238
commit 7fea327840
4 changed files with 44 additions and 6 deletions
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1
drivers/infiniband/hw/bnxt_re/bnxt_re.h
View file

@ -229,6 +229,7 @@ struct bnxt_re_dev {
DECLARE_HASHTABLE(srq_hash, MAX_SRQ_HASH_BITS);
struct dentry *dbg_root;
struct dentry *qp_debugfs;
unsigned long event_bitmap;
};
#define to_bnxt_re_dev(ptr, member) \

39
drivers/infiniband/hw/bnxt_re/main.c
View file

@ -295,6 +295,20 @@ static void bnxt_re_vf_res_config(struct bnxt_re_dev *rdev)
&rdev->qplib_ctx);
}
static void bnxt_re_async_notifier(void *handle, struct hwrm_async_event_cmpl *cmpl)
{
struct bnxt_re_dev *rdev = (struct bnxt_re_dev *)handle;
u32 data1, data2;
u16 event_id;
event_id = le16_to_cpu(cmpl->event_id);
data1 = le32_to_cpu(cmpl->event_data1);
data2 = le32_to_cpu(cmpl->event_data2);
ibdev_dbg(&rdev->ibdev, "Async event_id = %d data1 = %d data2 = %d",
event_id, data1, data2);
}
static void bnxt_re_stop_irq(void *handle)
{
struct bnxt_re_en_dev_info *en_info = auxiliary_get_drvdata(handle);
@ -361,6 +375,7 @@ static void bnxt_re_start_irq(void *handle, struct bnxt_msix_entry *ent)
}
static struct bnxt_ulp_ops bnxt_re_ulp_ops = {
.ulp_async_notifier = bnxt_re_async_notifier,
.ulp_irq_stop = bnxt_re_stop_irq,
.ulp_irq_restart = bnxt_re_start_irq
};
@ -1785,6 +1800,26 @@ static int bnxt_re_setup_qos(struct bnxt_re_dev *rdev)
return 0;
}
static void bnxt_re_net_unregister_async_event(struct bnxt_re_dev *rdev)
{
if (rdev->is_virtfn)
return;
memset(&rdev->event_bitmap, 0, sizeof(rdev->event_bitmap));
bnxt_register_async_events(rdev->en_dev, &rdev->event_bitmap,
ASYNC_EVENT_CMPL_EVENT_ID_DCB_CONFIG_CHANGE);
}
static void bnxt_re_net_register_async_event(struct bnxt_re_dev *rdev)
{
if (rdev->is_virtfn)
return;
rdev->event_bitmap |= (1 << ASYNC_EVENT_CMPL_EVENT_ID_DCB_CONFIG_CHANGE);
bnxt_register_async_events(rdev->en_dev, &rdev->event_bitmap,
ASYNC_EVENT_CMPL_EVENT_ID_DCB_CONFIG_CHANGE);
}
static void bnxt_re_query_hwrm_intf_version(struct bnxt_re_dev *rdev)
{
struct bnxt_en_dev *en_dev = rdev->en_dev;
@ -1864,6 +1899,8 @@ static void bnxt_re_dev_uninit(struct bnxt_re_dev *rdev, u8 op_type)
bnxt_re_debugfs_rem_pdev(rdev);
bnxt_re_net_unregister_async_event(rdev);
if (test_and_clear_bit(BNXT_RE_FLAG_QOS_WORK_REG, &rdev->flags))
cancel_delayed_work_sync(&rdev->worker);
@ -2077,6 +2114,8 @@ static int bnxt_re_dev_init(struct bnxt_re_dev *rdev, u8 op_type)
bnxt_re_debugfs_add_pdev(rdev);
bnxt_re_net_register_async_event(rdev);
return 0;
free_sctx:
bnxt_re_net_stats_ctx_free(rdev, rdev->qplib_ctx.stats.fw_id);

6
drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c
View file

@ -373,9 +373,8 @@ exit_unlock_rcu:
rcu_read_unlock();
}
int bnxt_register_async_events(struct bnxt_en_dev *edev,
unsigned long *events_bmap,
u16 max_id)
void bnxt_register_async_events(struct bnxt_en_dev *edev,
unsigned long *events_bmap, u16 max_id)
{
struct net_device *dev = edev->net;
struct bnxt *bp = netdev_priv(dev);
@ -387,7 +386,6 @@ int bnxt_register_async_events(struct bnxt_en_dev *edev,
smp_wmb();
ulp->max_async_event_id = max_id;
bnxt_hwrm_func_drv_rgtr(bp, events_bmap, max_id + 1, true);
return 0;
}
EXPORT_SYMBOL(bnxt_register_async_events);

4
drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h
View file

@ -126,6 +126,6 @@ int bnxt_register_dev(struct bnxt_en_dev *edev, struct bnxt_ulp_ops *ulp_ops,
void *handle);
void bnxt_unregister_dev(struct bnxt_en_dev *edev);
int bnxt_send_msg(struct bnxt_en_dev *edev, struct bnxt_fw_msg *fw_msg);
int bnxt_register_async_events(struct bnxt_en_dev *edev,
unsigned long *events_bmap, u16 max_id);
void bnxt_register_async_events(struct bnxt_en_dev *edev,
unsigned long *events_bmap, u16 max_id);
#endif