Add patches to fix various ibmveth driver issues (rhbz 733766)
This commit is contained in:
Josh Boyer
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Path: news.gmane.org!not-for-mail
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From: Anton Blanchard <anton@samba.org>
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Newsgroups: gmane.linux.network
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Subject: [PATCH 3/4] ibmveth: Checksum offload is always disabled
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Date: Thu, 08 Sep 2011 10:41:05 +1000
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Lines: 23
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Approved: news@gmane.org
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Message-ID: <20110908004121.744925909@samba.org>
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To: Santiago Leon <santil@linux.vnet.ibm.com>,
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brking@linux.vnet.ibm.com, rcj@linux.vnet.ibm.com,
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mirq-linux@rere.qmqm.pl
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Content-Disposition: inline; filename=ibmveth_fix_csum.patch
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Commit b9367bf3ee6d (net: ibmveth: convert to hw_features) reversed
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a check in ibmveth_set_csum_offload that results in checksum offload
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never being enabled.
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Signed-off-by: Anton Blanchard <anton@samba.org>
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Cc: <stable@kernel.org> # 3.0+
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---
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Index: linux-build/drivers/net/ibmveth.c
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===================================================================
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--- linux-build.orig/drivers/net/ibmveth.c 2011-09-01 16:02:12.198726425 +1000
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+++ linux-build/drivers/net/ibmveth.c 2011-09-01 16:05:37.282482851 +1000
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@@ -812,7 +812,7 @@ static int ibmveth_set_csum_offload(stru
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} else
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adapter->fw_ipv6_csum_support = data;
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- if (ret != H_SUCCESS || ret6 != H_SUCCESS)
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+ if (ret == H_SUCCESS || ret6 == H_SUCCESS)
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adapter->rx_csum = data;
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else
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rc1 = -EIO;
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@ -0,0 +1,78 @@
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Path: news.gmane.org!not-for-mail
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From: Anton Blanchard <anton@samba.org>
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Newsgroups: gmane.linux.network
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Subject: [PATCH 1/4] ibmveth: Fix DMA unmap error
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Date: Thu, 08 Sep 2011 10:41:03 +1000
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Lines: 32
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Approved: news@gmane.org
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Message-ID: <20110908004121.570234962@samba.org>
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References: <20110908004102.355674129@samba.org>
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Cc: netdev@vger.kernel.org
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To: Santiago Leon <santil@linux.vnet.ibm.com>,
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brking@linux.vnet.ibm.com, rcj@linux.vnet.ibm.com
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Content-Disposition: inline; filename=ibmveth_1.patch
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From: Brian King <brking@linux.vnet.ibm.com>
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Commit 6e8ab30ec677 (ibmveth: Add scatter-gather support) introduced a
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DMA mapping API inconsistency resulting in dma_unmap_page getting
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called on memory mapped via dma_map_single. This was seen when
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CONFIG_DMA_API_DEBUG was enabled. Fix up this API usage inconsistency.
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Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
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Acked-by: Anton Blanchard <anton@samba.org>
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Cc: <stable@kernel.org> # v2.6.37+
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---
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Index: linux-build/drivers/net/ibmveth.c
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===================================================================
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--- linux-build.orig/drivers/net/ibmveth.c 2011-09-08 08:00:16.842856634 +1000
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+++ linux-build/drivers/net/ibmveth.c 2011-09-08 09:45:43.163851274 +1000
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@@ -1026,7 +1026,12 @@ retry_bounce:
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netdev->stats.tx_bytes += skb->len;
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}
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- for (i = 0; i < skb_shinfo(skb)->nr_frags + 1; i++)
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+ dma_unmap_single(&adapter->vdev->dev,
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+ descs[0].fields.address,
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+ descs[0].fields.flags_len & IBMVETH_BUF_LEN_MASK,
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+ DMA_TO_DEVICE);
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+
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+ for (i = 1; i < skb_shinfo(skb)->nr_frags + 1; i++)
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dma_unmap_page(&adapter->vdev->dev, descs[i].fields.address,
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descs[i].fields.flags_len & IBMVETH_BUF_LEN_MASK,
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DMA_TO_DEVICE);
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@ -0,0 +1,93 @@
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Path: news.gmane.org!not-for-mail
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From: Anton Blanchard <anton@samba.org>
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Newsgroups: gmane.linux.network
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Subject: [PATCH 2/4] ibmveth: Fix issue with DMA mapping failure
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Date: Thu, 08 Sep 2011 10:41:04 +1000
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Lines: 47
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Approved: news@gmane.org
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Message-ID: <20110908004121.669225190@samba.org>
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Cc: netdev@vger.kernel.org
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To: Santiago Leon <santil@linux.vnet.ibm.com>,
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brking@linux.vnet.ibm.com, rcj@linux.vnet.ibm.com
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descs[].fields.address is 32bit which truncates any dma mapping
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errors so dma_mapping_error() fails to catch it.
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Use a dma_addr_t to do the comparison. With this patch I was able
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to transfer many gigabytes of data with IOMMU fault injection set
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at 10% probability.
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Signed-off-by: Anton Blanchard <anton@samba.org>
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Cc: <stable@kernel.org> # v2.6.37+
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---
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Index: linux-build/drivers/net/ibmveth.c
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===================================================================
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--- linux-build.orig/drivers/net/ibmveth.c 2011-09-01 15:01:18.066844039 +1000
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+++ linux-build/drivers/net/ibmveth.c 2011-09-01 15:03:34.299079796 +1000
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@@ -930,6 +930,7 @@ static netdev_tx_t ibmveth_start_xmit(st
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union ibmveth_buf_desc descs[6];
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int last, i;
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int force_bounce = 0;
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+ dma_addr_t dma_addr;
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/*
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* veth handles a maximum of 6 segments including the header, so
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@@ -994,17 +995,16 @@ retry_bounce:
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}
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/* Map the header */
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- descs[0].fields.address = dma_map_single(&adapter->vdev->dev, skb->data,
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- skb_headlen(skb),
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- DMA_TO_DEVICE);
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- if (dma_mapping_error(&adapter->vdev->dev, descs[0].fields.address))
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+ dma_addr = dma_map_single(&adapter->vdev->dev, skb->data,
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+ skb_headlen(skb), DMA_TO_DEVICE);
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+ if (dma_mapping_error(&adapter->vdev->dev, dma_addr))
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goto map_failed;
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descs[0].fields.flags_len = desc_flags | skb_headlen(skb);
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+ descs[0].fields.address = dma_addr;
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/* Map the frags */
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for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
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- unsigned long dma_addr;
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skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
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dma_addr = dma_map_page(&adapter->vdev->dev, frag->page,
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11
kernel.spec
11
kernel.spec
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@ -51,7 +51,7 @@ Summary: The Linux kernel
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# For non-released -rc kernels, this will be prepended with "0.", so
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# for example a 3 here will become 0.3
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#
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%global baserelease 1
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%global baserelease 2
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%global fedora_build %{baserelease}
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# base_sublevel is the kernel version we're starting with and patching
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@ -730,6 +730,10 @@ Patch13008: add-macbookair41-btusb.patch
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Patch13009: hvcs_pi_buf_alloc.patch
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Patch13010: ibmveth-Fix-DMA-unmap-error.patch
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Patch13011: ibmveth-Fix-issue-with-DMA-mapping-failure.patch
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Patch13012: ibmveth-Checksum-offload-is-always-disabled.patch
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Patch20000: utrace.patch
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# Flattened devicetree support
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@ -1344,6 +1348,10 @@ ApplyPatch add-macbookair41-btusb.patch
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ApplyPatch hvcs_pi_buf_alloc.patch
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ApplyPatch ibmveth-Fix-DMA-unmap-error.patch
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ApplyPatch ibmveth-Fix-issue-with-DMA-mapping-failure.patch
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ApplyPatch ibmveth-Checksum-offload-is-always-disabled.patch
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# utrace.
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ApplyPatch utrace.patch
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@ -2061,6 +2069,7 @@ fi
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* Wed Sep 14 2011 Josh Boyer <jwboyer@redhat.com>
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- Add support for Macbook Air 4,1 keyboard, trackpad, and bluetooth
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- Add patch to fix HVCS on ppc64 (rhbz 738096)
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- Add various ibmveth driver fixes (rhbz 733766)
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* Mon Sep 12 2011 Josh Boyer <jwboyer@redhat.com>
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- Linux 3.1-rc6
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