diff options
| author | David S. Miller <davem@davemloft.net> | 2020-02-17 14:50:25 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-02-17 14:50:25 -0800 |
| commit | 4c08222170dc91344fc8d03059a6b31b3d7eb46c (patch) | |
| tree | 85e6feb574608404e11185ba606b7966ecdcac4e /net/smc/smc_ib.c | |
| parent | 790a9a7cce6564fac132ce91ace5c7ab20d9a70f (diff) | |
| parent | 5613f20c938102093df2c67c7c22d7d0b0d3e3fb (diff) | |
Merge branch 'net-smc-next'
Ursula Braun says:
====================
net/smc: patches 2020-02-17
here are patches for SMC making termination tasks more perfect.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/smc/smc_ib.c')
| -rw-r--r-- | net/smc/smc_ib.c | 44 |
1 files changed, 29 insertions, 15 deletions
diff --git a/net/smc/smc_ib.c b/net/smc/smc_ib.c index 5486326..6756bd5 100644 --- a/net/smc/smc_ib.c +++ b/net/smc/smc_ib.c @@ -257,6 +257,7 @@ static void smc_ib_global_event_handler(struct ib_event_handler *handler, struct ib_event *ibevent) { struct smc_ib_device *smcibdev; + bool schedule = false; u8 port_idx; smcibdev = container_of(handler, struct smc_ib_device, event_handler); @@ -266,22 +267,35 @@ static void smc_ib_global_event_handler(struct ib_event_handler *handler, /* terminate all ports on device */ for (port_idx = 0; port_idx < SMC_MAX_PORTS; port_idx++) { set_bit(port_idx, &smcibdev->port_event_mask); - set_bit(port_idx, smcibdev->ports_going_away); + if (!test_and_set_bit(port_idx, + smcibdev->ports_going_away)) + schedule = true; } - schedule_work(&smcibdev->port_event_work); + if (schedule) + schedule_work(&smcibdev->port_event_work); break; - case IB_EVENT_PORT_ERR: case IB_EVENT_PORT_ACTIVE: - case IB_EVENT_GID_CHANGE: port_idx = ibevent->element.port_num - 1; - if (port_idx < SMC_MAX_PORTS) { - set_bit(port_idx, &smcibdev->port_event_mask); - if (ibevent->event == IB_EVENT_PORT_ERR) - set_bit(port_idx, smcibdev->ports_going_away); - else if (ibevent->event == IB_EVENT_PORT_ACTIVE) - clear_bit(port_idx, smcibdev->ports_going_away); + if (port_idx >= SMC_MAX_PORTS) + break; + set_bit(port_idx, &smcibdev->port_event_mask); + if (test_and_clear_bit(port_idx, smcibdev->ports_going_away)) + schedule_work(&smcibdev->port_event_work); + break; + case IB_EVENT_PORT_ERR: + port_idx = ibevent->element.port_num - 1; + if (port_idx >= SMC_MAX_PORTS) + break; + set_bit(port_idx, &smcibdev->port_event_mask); + if (!test_and_set_bit(port_idx, smcibdev->ports_going_away)) schedule_work(&smcibdev->port_event_work); - } + break; + case IB_EVENT_GID_CHANGE: + port_idx = ibevent->element.port_num - 1; + if (port_idx >= SMC_MAX_PORTS) + break; + set_bit(port_idx, &smcibdev->port_event_mask); + schedule_work(&smcibdev->port_event_work); break; default: break; @@ -316,11 +330,11 @@ static void smc_ib_qp_event_handler(struct ib_event *ibevent, void *priv) case IB_EVENT_QP_FATAL: case IB_EVENT_QP_ACCESS_ERR: port_idx = ibevent->element.qp->port - 1; - if (port_idx < SMC_MAX_PORTS) { - set_bit(port_idx, &smcibdev->port_event_mask); - set_bit(port_idx, smcibdev->ports_going_away); + if (port_idx >= SMC_MAX_PORTS) + break; + set_bit(port_idx, &smcibdev->port_event_mask); + if (!test_and_set_bit(port_idx, smcibdev->ports_going_away)) schedule_work(&smcibdev->port_event_work); - } break; default: break; |