Messages in this thread Patch in this message | | | From | Logan Gunthorpe <> | Date | Mon, 6 Jan 2020 12:03:30 -0700 | Subject | [PATCH 05/12] PCI/switchtec: Move check event id from mask_event() to switchtec_event_isr() |
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From: Wesley Sheng <wesley.sheng@microchip.com>
Event id check doesn't depend on anything in the mask_all_events() to mask_event() path, doing it in switchtec_event_isr() would avoid the CSR read in mask_event().
Signed-off-by: Wesley Sheng <wesley.sheng@microchip.com> Signed-off-by: Logan Gunthorpe <logang@deltatee.com> --- drivers/pci/switch/switchtec.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c index 231499da2899..05d4cb49219b 100644 --- a/drivers/pci/switch/switchtec.c +++ b/drivers/pci/switch/switchtec.c @@ -1180,10 +1180,6 @@ static int mask_event(struct switchtec_dev *stdev, int eid, int idx) if (!(hdr & SWITCHTEC_EVENT_OCCURRED && hdr & SWITCHTEC_EVENT_EN_IRQ)) return 0; - if (eid == SWITCHTEC_IOCTL_EVENT_LINK_STATE || - eid == SWITCHTEC_IOCTL_EVENT_MRPC_COMP) - return 0; - dev_dbg(&stdev->dev, "%s: %d %d %x\n", __func__, eid, idx, hdr); hdr &= ~(SWITCHTEC_EVENT_EN_IRQ | SWITCHTEC_EVENT_OCCURRED); iowrite32(hdr, hdr_reg); @@ -1230,8 +1226,13 @@ static irqreturn_t switchtec_event_isr(int irq, void *dev) check_link_state_events(stdev); - for (eid = 0; eid < SWITCHTEC_IOCTL_MAX_EVENTS; eid++) + for (eid = 0; eid < SWITCHTEC_IOCTL_MAX_EVENTS; eid++) { + if (eid == SWITCHTEC_IOCTL_EVENT_LINK_STATE || + eid == SWITCHTEC_IOCTL_EVENT_MRPC_COMP) + continue; + event_count += mask_all_events(stdev, eid); + } if (event_count) { atomic_inc(&stdev->event_cnt); -- 2.20.1
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