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fix UIO resource mapping in secondary process

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Signed-off-by: Dengdui Huang <huangdengdui@huawei.com>
(cherry picked from commit 995630c7cd13b2dd46372cc3ebe094c662723660)
This commit is contained in:
Dengdui Huang 2024-10-11 09:43:58 +08:00 committed by openeuler-sync-bot
parent 2088b9623f
commit c0a187635f
2 changed files with 81 additions and 1 deletions
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75
0046-bus-pci-fix-UIO-resource-mapping-in-secondary-process.patch Normal file
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@ -0,0 +1,75 @@
From 9e0a0e38ecaa7efaca9d349737d0a5ef9ca33a57 Mon Sep 17 00:00:00 2001
From: Zerun Fu <zerun.fu@corigine.com>
Date: Tue, 2 Jul 2024 15:40:06 +0800
Subject: [PATCH] bus/pci: fix UIO resource mapping in secondary process
[ upstream commit 9e0a0e38ecaa7efaca9d349737d0a5ef9ca33a57 ]
For the primary process, the logic loops all BARs and will skip
the map of BAR with an invalid physical address (0), also will
assign 'uio_res->nb_maps' with the real mapped BARs number. But
for the secondary process, instead of loops all BARs, the logic
using the 'uio_res->nb_map' as index. If the device uses continuous
BARs there will be no problem, whereas if it uses discrete BARs,
it will lead to mapping errors.
Fix this problem by also loops all BARs and skip the map of BAR
with an invalid physical address in secondary process.
Fixes: 9b957f378abf ("pci: merge uio functions for linux and bsd")
Cc: stable@dpdk.org
Signed-off-by: Zerun Fu <zerun.fu@corigine.com>
Reviewed-by: Chaoyong He <chaoyong.he@corigine.com>
Reviewed-by: Long Wu <long.wu@corigine.com>
Reviewed-by: Peng Zhang <peng.zhang@corigine.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
Reviewed-by: Chenbo Xia <chenbox@nvidia.com>
---
drivers/bus/pci/pci_common_uio.c | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git a/drivers/bus/pci/pci_common_uio.c b/drivers/bus/pci/pci_common_uio.c
index ff1b02b6bd..65f72b7cc6 100644
--- a/drivers/bus/pci/pci_common_uio.c
+++ b/drivers/bus/pci/pci_common_uio.c
@@ -26,7 +26,7 @@ EAL_REGISTER_TAILQ(rte_uio_tailq)
static int
pci_uio_map_secondary(struct rte_pci_device *dev)
{
- int fd, i, j;
+ int fd, i = 0, j, res_idx;
struct mapped_pci_resource *uio_res;
struct mapped_pci_res_list *uio_res_list =
RTE_TAILQ_CAST(rte_uio_tailq.head, mapped_pci_res_list);
@@ -37,7 +37,15 @@ pci_uio_map_secondary(struct rte_pci_device *dev)
if (rte_pci_addr_cmp(&uio_res->pci_addr, &dev->addr))
continue;
- for (i = 0; i != uio_res->nb_maps; i++) {
+ /* Map all BARs */
+ for (res_idx = 0; res_idx != PCI_MAX_RESOURCE; res_idx++) {
+ /* skip empty BAR */
+ if (dev->mem_resource[res_idx].phys_addr == 0)
+ continue;
+
+ if (i >= uio_res->nb_maps)
+ return -1;
+
/*
* open devname, to mmap it
*/
@@ -70,7 +78,9 @@ pci_uio_map_secondary(struct rte_pci_device *dev)
}
return -1;
}
- dev->mem_resource[i].addr = mapaddr;
+ dev->mem_resource[res_idx].addr = mapaddr;
+
+ i++;
}
return 0;
}
--
2.21.0

7
dpdk.spec
View File

@ -11,7 +11,7 @@
Name: dpdk
Version: 23.11
Release: 22
Release: 23
URL: http://dpdk.org
Source: https://fast.dpdk.org/rel/dpdk-%{version}.tar.xz
@ -72,6 +72,8 @@ Patch9037: 0043-remove-symbol-for-examples-and-app.patch
Patch6044: 0044-net-hns3-support-more-VLAN-fields-matching.patch
Patch6045: 0045-net-hns3-add-Rx-DMA-address-align-check.patch
Patch6046: 0046-bus-pci-fix-UIO-resource-mapping-in-secondary-process.patch
BuildRequires: meson
BuildRequires: python3-pyelftools
BuildRequires: diffutils
@ -275,6 +277,9 @@ fi
/usr/sbin/depmod
%changelog
* Fri Oct 11 2024 huangdengdui <huangdengui@huawei.com> - 23.11-23
Fix UIO resource mapping in secondary process
* Wed Oct 09 2024 lifeifei <lifeifei@kylinos.cn> - 23.11-22
create weak dependency for ko files