Files
linux-bredos/include/linux
Jianheng Zhang e1fbdef91b net: stmmac: fix FPE events losing
[ Upstream commit 37e4b8df27 ]

The status bits of register MAC_FPE_CTRL_STS are clear on read. Using
32-bit read for MAC_FPE_CTRL_STS in dwmac5_fpe_configure() and
dwmac5_fpe_send_mpacket() clear the status bits. Then the stmmac interrupt
handler missing FPE event status and leads to FPE handshaking failure and
retries.
To avoid clear status bits of MAC_FPE_CTRL_STS in dwmac5_fpe_configure()
and dwmac5_fpe_send_mpacket(), add fpe_csr to stmmac_fpe_cfg structure to
cache the control bits of MAC_FPE_CTRL_STS and to avoid reading
MAC_FPE_CTRL_STS in those methods.

Fixes: 5a5586112b ("net: stmmac: support FPE link partner hand-shaking procedure")
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Jianheng Zhang <Jianheng.Zhang@synopsys.com>
Link: https://lore.kernel.org/r/CY5PR12MB637225A7CF529D5BE0FBE59CBF81A@CY5PR12MB6372.namprd12.prod.outlook.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-12-13 18:45:05 +01:00
..
2023-08-23 08:21:37 +01:00
2023-11-28 17:19:55 +00:00
2023-09-11 15:24:16 -07:00
2023-08-09 08:21:22 +02:00
2023-08-24 16:20:30 -07:00
2023-09-01 00:29:34 +02:00
2023-09-13 10:48:48 +02:00
2023-08-04 11:02:46 +01:00
2023-08-05 08:18:04 -04:00
2023-07-14 13:47:07 -06:00
2023-08-18 10:12:10 -07:00
2023-08-15 14:57:25 -07:00
2023-08-18 10:18:59 -07:00
2023-07-11 14:12:19 -07:00
2023-11-20 11:58:53 +01:00
2023-08-18 10:12:25 -07:00
2023-08-21 14:28:45 -07:00
2023-11-20 11:58:54 +01:00
2023-07-18 10:07:47 +02:00
2023-11-28 17:19:54 +00:00
2023-09-29 17:20:46 -07:00
2023-08-12 09:18:47 -07:00
2023-11-28 17:19:48 +00:00
2023-10-06 11:01:23 +02:00
2023-10-06 11:01:23 +02:00
2023-09-02 15:17:33 -07:00
2023-07-15 11:34:49 -07:00
2023-10-10 19:35:54 -07:00
2023-07-18 10:07:47 +02:00
2023-11-28 17:19:38 +00:00
2023-12-13 18:45:05 +01:00
2023-08-21 13:37:26 -07:00
2023-08-06 08:24:55 +01:00
2023-08-07 17:55:54 +00:00
2023-08-11 21:12:47 +02:00
2023-11-20 11:58:56 +01:00
2023-08-24 13:27:47 -05:00
2023-08-21 14:52:16 +02:00
2023-08-21 13:37:27 -07:00