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mwifiex: disable MSIx interrupt for 8997 chipset

Message ID 1466499752-1818-1-git-send-email-akarwar@marvell.com (mailing list archive)
State Accepted
Commit bf942091678c51f53caa679d5fabebbe04a2ea66
Delegated to: Kalle Valo
Headers show

Commit Message

Amitkumar Karwar June 21, 2016, 9:02 a.m. UTC 
From: Shengzhen Li <szli@marvell.com>

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 <szli@marvell.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
---
 drivers/net/wireless/marvell/mwifiex/pcie.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Kalle Valo July 5, 2016, 2:31 p.m. UTC | #1 
Amitkumar Karwar <akarwar@marvell.com> wrote:
> From: Shengzhen Li <szli@marvell.com>
> 
> 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 <szli@marvell.com>
> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>

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

bf942091678c mwifiex: disable MSIx interrupt for 8997 chipset
diff mbox

Patch

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[] = {