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| author | Loic Poulain <loic.poulain@linaro.org> | 2021-01-04 17:14:51 +0100 |
|---|---|---|
| committer | Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> | 2021-01-04 21:50:24 +0530 |
| commit | d9f23ea69d41d9749873381affe3c00bb1857019 (patch) | |
| tree | 56e55d1064feadc7f066ba8d16a07a1720ffa18f /drivers/bus | |
| parent | b5a8d233a588b3acf2a7a3a8da30f8f68f376626 (diff) | |
| download | lwn-d9f23ea69d41d9749873381affe3c00bb1857019.tar.gz lwn-d9f23ea69d41d9749873381affe3c00bb1857019.zip | |
mhi: pci-generic: Increase number of hardware events
If the IPA (IP hardware accelerator) is starved of event ring elements,
the modem is crashing (SDX55). That can be prevented by setting a
larger number of events (i.e 2 x number of channel ring elements).
Tested with FN980m module.
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Diffstat (limited to 'drivers/bus')
| -rw-r--r-- | drivers/bus/mhi/pci_generic.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/bus/mhi/pci_generic.c b/drivers/bus/mhi/pci_generic.c index f5bee76ea061..d3896ef13eee 100644 --- a/drivers/bus/mhi/pci_generic.c +++ b/drivers/bus/mhi/pci_generic.c @@ -91,7 +91,7 @@ struct mhi_pci_dev_info { #define MHI_EVENT_CONFIG_HW_DATA(ev_ring, ch_num) \ { \ - .num_elements = 128, \ + .num_elements = 256, \ .irq_moderation_ms = 5, \ .irq = (ev_ring) + 1, \ .priority = 1, \ |