diff options
| author | Dave Airlie <airlied@redhat.com> | 2020-07-24 01:28:09 +0300 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2020-07-24 01:48:05 +0300 |
| commit | 41206a073ceebc517245677a19f52ba6379b33a9 (patch) | |
| tree | 2fc35aac6abe32b99058ad55b0fc6e4d449d1056 /drivers/net/ethernet/qlogic/qed/qed_vf.c | |
| parent | 206739119508d5ab4b42ab480ff61a7e6cd72d7c (diff) | |
| parent | ba47d845d715a010f7b51f6f89bae32845e6acb7 (diff) | |
| download | linux-41206a073ceebc517245677a19f52ba6379b33a9.tar.xz | |
Merge v5.8-rc6 into drm-next
I've got a silent conflict + two trees based on fixes to merge.
Fixes a silent merge with amdgpu
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/net/ethernet/qlogic/qed/qed_vf.c')
| -rw-r--r-- | drivers/net/ethernet/qlogic/qed/qed_vf.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/drivers/net/ethernet/qlogic/qed/qed_vf.c b/drivers/net/ethernet/qlogic/qed/qed_vf.c index 856051f50eb7..adc2c8f3d48e 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_vf.c +++ b/drivers/net/ethernet/qlogic/qed/qed_vf.c @@ -81,12 +81,17 @@ static void qed_vf_pf_req_end(struct qed_hwfn *p_hwfn, int req_status) mutex_unlock(&(p_hwfn->vf_iov_info->mutex)); } +#define QED_VF_CHANNEL_USLEEP_ITERATIONS 90 +#define QED_VF_CHANNEL_USLEEP_DELAY 100 +#define QED_VF_CHANNEL_MSLEEP_ITERATIONS 10 +#define QED_VF_CHANNEL_MSLEEP_DELAY 25 + static int qed_send_msg2pf(struct qed_hwfn *p_hwfn, u8 *done, u32 resp_size) { union vfpf_tlvs *p_req = p_hwfn->vf_iov_info->vf2pf_request; struct ustorm_trigger_vf_zone trigger; struct ustorm_vf_zone *zone_data; - int rc = 0, time = 100; + int iter, rc = 0; zone_data = (struct ustorm_vf_zone *)PXP_VF_BAR0_START_USDM_ZONE_B; @@ -126,11 +131,19 @@ static int qed_send_msg2pf(struct qed_hwfn *p_hwfn, u8 *done, u32 resp_size) REG_WR(p_hwfn, (uintptr_t)&zone_data->trigger, *((u32 *)&trigger)); /* When PF would be done with the response, it would write back to the - * `done' address. Poll until then. + * `done' address from a coherent DMA zone. Poll until then. */ - while ((!*done) && time) { - msleep(25); - time--; + + iter = QED_VF_CHANNEL_USLEEP_ITERATIONS; + while (!*done && iter--) { + udelay(QED_VF_CHANNEL_USLEEP_DELAY); + dma_rmb(); + } + + iter = QED_VF_CHANNEL_MSLEEP_ITERATIONS; + while (!*done && iter--) { + msleep(QED_VF_CHANNEL_MSLEEP_DELAY); + dma_rmb(); } if (!*done) { |