diff options
| author | Mike Marciniszyn <mike.marciniszyn@intel.com> | 2020-01-06 16:42:10 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2020-01-10 17:57:17 +0300 |
| commit | 62661038c33b96ed949e751780a69f4d3608bad0 (patch) | |
| tree | d557b7856c319596a43f3da0c60d0ad84ae484e7 /drivers/infiniband/hw/hfi1 | |
| parent | cd47b594dbef7c573c0790026a0ea48273ed2b14 (diff) | |
| download | linux-62661038c33b96ed949e751780a69f4d3608bad0.tar.xz | |
IB/hfi1: Create API for auto activate
Add an auto activate routine for use by the interrupt handler.
Link: https://lore.kernel.org/r/20200106134210.119356.43079.stgit@awfm-01.aw.intel.com
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw/hfi1')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/driver.c | 37 |
1 files changed, 23 insertions, 14 deletions
diff --git a/drivers/infiniband/hw/hfi1/driver.c b/drivers/infiniband/hw/hfi1/driver.c index bbc74583628c..46c1be0c4b80 100644 --- a/drivers/infiniband/hw/hfi1/driver.c +++ b/drivers/infiniband/hw/hfi1/driver.c @@ -924,11 +924,8 @@ void set_all_slowpath(struct hfi1_devdata *dd) } } -static inline int set_armed_to_active(struct hfi1_ctxtdata *rcd, - struct hfi1_packet *packet, - struct hfi1_devdata *dd) +static bool __set_armed_to_active(struct hfi1_packet *packet) { - struct work_struct *lsaw = &rcd->ppd->linkstate_active_work; u8 etype = rhf_rcv_type(packet->rhf); u8 sc = SC15_PACKET; @@ -943,19 +940,34 @@ static inline int set_armed_to_active(struct hfi1_ctxtdata *rcd, sc = hfi1_16B_get_sc(hdr); } if (sc != SC15_PACKET) { - int hwstate = driver_lstate(rcd->ppd); + int hwstate = driver_lstate(packet->rcd->ppd); + struct work_struct *lsaw = + &packet->rcd->ppd->linkstate_active_work; if (hwstate != IB_PORT_ACTIVE) { - dd_dev_info(dd, + dd_dev_info(packet->rcd->dd, "Unexpected link state %s\n", opa_lstate_name(hwstate)); - return 0; + return false; } - queue_work(rcd->ppd->link_wq, lsaw); - return 1; + queue_work(packet->rcd->ppd->link_wq, lsaw); + return true; } - return 0; + return false; +} + +/** + * armed to active - the fast path for armed to active + * @packet: the packet structure + * + * Return true if packet processing needs to bail. + */ +static bool set_armed_to_active(struct hfi1_packet *packet) +{ + if (likely(packet->rcd->ppd->host_link_state != HLS_UP_ARMED)) + return false; + return __set_armed_to_active(packet); } /* @@ -1016,10 +1028,7 @@ int handle_receive_interrupt(struct hfi1_ctxtdata *rcd, int thread) last = skip_rcv_packet(&packet, thread); skip_pkt = 0; } else { - /* Auto activate link on non-SC15 packet receive */ - if (unlikely(rcd->ppd->host_link_state == - HLS_UP_ARMED) && - set_armed_to_active(rcd, &packet, dd)) + if (set_armed_to_active(&packet)) goto bail; last = process_rcv_packet(&packet, thread); } |