From: Esben Haabendal <esben@geanix.com> To: netdev@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, "Andrew Lunn" <andrew@lunn.ch>, "David S . Miller" <davem@davemloft.net>, "Michal Simek" <michal.simek@xilinx.com>, "Petr Štetiar" <ynezz@true.cz> Subject: [PATCH net v2 0/4] net: ll_temac: Bugfixes Date: Fri, 21 Feb 2020 07:47:09 +0100 [thread overview] Message-ID: <cover.1582267079.git.esben@geanix.com> (raw) In-Reply-To: <cover.1582108989.git.esben@geanix.com> Fix a number of bugs which have been present since the first commit. The bugs fixed in patch 1,2 and 4 have all been observed in real systems, and was relatively easy to reproduce given an appropriate stress setup. Changes since v1: - Changed error handling of of dma_map_single() in temac_start_xmit() to drop packet instead of returning NETDEV_TX_BUSY. Esben Haabendal (4): net: ll_temac: Fix race condition causing TX hang net: ll_temac: Add more error handling of dma_map_single() calls net: ll_temac: Fix RX buffer descriptor handling on GFP_ATOMIC pressure net: ll_temac: Handle DMA halt condition caused by buffer underrun drivers/net/ethernet/xilinx/ll_temac.h | 4 + drivers/net/ethernet/xilinx/ll_temac_main.c | 209 ++++++++++++++++---- 2 files changed, 175 insertions(+), 38 deletions(-) -- 2.25.0
WARNING: multiple messages have this Message-ID (diff)
From: Esben Haabendal <esben@geanix.com> To: netdev@vger.kernel.org Cc: "Andrew Lunn" <andrew@lunn.ch>, "Michal Simek" <michal.simek@xilinx.com>, linux-kernel@vger.kernel.org, "Petr Štetiar" <ynezz@true.cz>, "David S . Miller" <davem@davemloft.net>, linux-arm-kernel@lists.infradead.org Subject: [PATCH net v2 0/4] net: ll_temac: Bugfixes Date: Fri, 21 Feb 2020 07:47:09 +0100 [thread overview] Message-ID: <cover.1582267079.git.esben@geanix.com> (raw) In-Reply-To: <cover.1582108989.git.esben@geanix.com> Fix a number of bugs which have been present since the first commit. The bugs fixed in patch 1,2 and 4 have all been observed in real systems, and was relatively easy to reproduce given an appropriate stress setup. Changes since v1: - Changed error handling of of dma_map_single() in temac_start_xmit() to drop packet instead of returning NETDEV_TX_BUSY. Esben Haabendal (4): net: ll_temac: Fix race condition causing TX hang net: ll_temac: Add more error handling of dma_map_single() calls net: ll_temac: Fix RX buffer descriptor handling on GFP_ATOMIC pressure net: ll_temac: Handle DMA halt condition caused by buffer underrun drivers/net/ethernet/xilinx/ll_temac.h | 4 + drivers/net/ethernet/xilinx/ll_temac_main.c | 209 ++++++++++++++++---- 2 files changed, 175 insertions(+), 38 deletions(-) -- 2.25.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-02-21 6:47 UTC|newest] Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-02-19 10:53 [PATCH net 0/4] net: ll_temac: Bugfixes Esben Haabendal 2020-02-19 10:53 ` Esben Haabendal 2020-02-19 10:53 ` [PATCH net 1/4] net: ll_temac: Fix race condition causing TX hang Esben Haabendal 2020-02-19 10:53 ` Esben Haabendal 2020-02-19 10:54 ` [PATCH net 2/4] net: ll_temac: Add more error handling of dma_map_single() calls Esben Haabendal 2020-02-19 10:54 ` Esben Haabendal 2020-02-19 18:59 ` David Miller 2020-02-19 18:59 ` David Miller 2020-02-20 8:32 ` Esben Haabendal 2020-02-20 8:32 ` Esben Haabendal 2020-02-20 18:11 ` David Miller 2020-02-20 18:11 ` David Miller 2020-02-19 10:54 ` [PATCH net 3/4] net: ll_temac: Fix RX buffer descriptor handling on GFP_ATOMIC pressure Esben Haabendal 2020-02-19 10:54 ` Esben Haabendal 2020-02-19 10:54 ` [PATCH net 4/4] net: ll_temac: Handle DMA halt condition caused by buffer underrun Esben Haabendal 2020-02-19 10:54 ` Esben Haabendal 2020-02-21 6:47 ` Esben Haabendal [this message] 2020-02-21 6:47 ` [PATCH net v2 0/4] net: ll_temac: Bugfixes Esben Haabendal 2020-02-21 6:47 ` [PATCH net v2 1/4] net: ll_temac: Fix race condition causing TX hang Esben Haabendal 2020-02-21 6:47 ` Esben Haabendal 2020-02-21 6:47 ` [PATCH net v2 2/4] net: ll_temac: Add more error handling of dma_map_single() calls Esben Haabendal 2020-02-21 6:47 ` Esben Haabendal 2020-02-21 6:47 ` [PATCH net v2 3/4] net: ll_temac: Fix RX buffer descriptor handling on GFP_ATOMIC pressure Esben Haabendal 2020-02-21 6:47 ` Esben Haabendal 2020-02-21 6:47 ` [PATCH net v2 4/4] net: ll_temac: Handle DMA halt condition caused by buffer underrun Esben Haabendal 2020-02-21 6:47 ` Esben Haabendal 2020-02-22 0:05 ` [PATCH net v2 0/4] net: ll_temac: Bugfixes David Miller 2020-02-22 0:05 ` David Miller
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