2016-06-21 09:14:56

by Amitkumar Karwar

Subject: [PATCH] mwifiex: disable MSIx interrupt for 8997 chipset

From: Shengzhen Li <[email protected]>

Sometimes MSIx interrupts are received out of order on multi-core
system. This creates a problem when there is a race between data
packet and SLEEP event from firmware. We will disable MSIx interrupt
mode to solve the problem and go with MSI mode.

Signed-off-by: Shengzhen Li <[email protected]>
Signed-off-by: Amitkumar Karwar <[email protected]>
---
drivers/net/wireless/marvell/mwifiex/pcie.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.h b/drivers/net/wireless/marvell/mwifiex/pcie.h
index 2592e63..9c00c7e 100644
--- a/drivers/net/wireless/marvell/mwifiex/pcie.h
+++ b/drivers/net/wireless/marvell/mwifiex/pcie.h
@@ -258,7 +258,7 @@ static const struct mwifiex_pcie_card_reg mwifiex_reg_8997 = {
.fw_dump_end = 0xcff,
.fw_dump_host_ready = 0xcc,
.fw_dump_read_done = 0xdd,
- .msix_support = 1,
+ .msix_support = 0,
};

static struct memory_type_mapping mem_type_mapping_tbl_w8897[] = {
--
1.9.1

2016-07-05 14:31:12

by Kalle Valo

Subject: Re: mwifiex: disable MSIx interrupt for 8997 chipset

Amitkumar Karwar <[email protected]> wrote:
> From: Shengzhen Li <[email protected]>
>
> Sometimes MSIx interrupts are received out of order on multi-core
> system. This creates a problem when there is a race between data
> packet and SLEEP event from firmware. We will disable MSIx interrupt
> mode to solve the problem and go with MSI mode.
>
> Signed-off-by: Shengzhen Li <[email protected]>
> Signed-off-by: Amitkumar Karwar <[email protected]>

Thanks, 1 patch applied to wireless-drivers-next.git:

bf942091678c mwifiex: disable MSIx interrupt for 8997 chipset

--
Sent by pwcli
https://patchwork.kernel.org/patch/9190001/