From: David Marchand <david.marchand@redhat.com>
To: dev@dpdk.org
Cc: benjamin.walker@intel.com, jerinj@marvell.com,
anatoly.burakov@intel.com, maxime.coquelin@redhat.com,
thomas@monjalon.net, stable@dpdk.org,
Ferruh Yigit <ferruh.yigit@intel.com>
Subject: [dpdk-dev] [PATCH v2 1/3] kni: refuse to initialise when IOVA is not PA
Date: Fri, 14 Jun 2019 11:39:15 +0200 [thread overview]
Message-ID: <1560505157-9769-2-git-send-email-david.marchand@redhat.com> (raw)
In-Reply-To: <1560505157-9769-1-git-send-email-david.marchand@redhat.com>
If a forced iova-mode has been passed at init, kni is not supposed to
work.
Fixes: 075b182b54ce ("eal: force IOVA to a particular mode")
Cc: stable@dpdk.org
Signed-off-by: David Marchand <david.marchand@redhat.com>
---
lib/librte_kni/rte_kni.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/lib/librte_kni/rte_kni.c b/lib/librte_kni/rte_kni.c
index a0f1e37..a6bf323 100644
--- a/lib/librte_kni/rte_kni.c
+++ b/lib/librte_kni/rte_kni.c
@@ -97,6 +97,11 @@ enum kni_ops_status {
int
rte_kni_init(unsigned int max_kni_ifaces __rte_unused)
{
+ if (rte_eal_iova_mode() != RTE_IOVA_PA) {
+ RTE_LOG(ERR, KNI, "KNI requires IOVA as PA\n");
+ return -1;
+ }
+
/* Check FD and open */
if (kni_fd < 0) {
kni_fd = open("/dev/" KNI_DEVICE, O_RDWR);
--
1.8.3.1
next prev parent reply other threads:[~2019-06-14 9:39 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-30 17:48 [dpdk-dev] eal/pci: Improve automatic selection of IOVA mode Ben Walker
2019-05-30 17:48 ` [dpdk-dev] [PATCH 01/12] eal: Make rte_eal_using_phys_addrs work sooner Ben Walker
2019-05-30 21:29 ` [dpdk-dev] [PATCH v2 " Ben Walker
2019-05-30 21:29 ` [dpdk-dev] [PATCH v2 02/12] eal/pci: Inline several functions into rte_pci_get_iommu_class Ben Walker
2019-05-30 21:29 ` [dpdk-dev] [PATCH v2 03/12] eal/pci: Rework loops in rte_pci_get_iommu_class Ben Walker
2019-05-30 21:29 ` [dpdk-dev] [PATCH v2 04/12] eal/pci: Collapse two " Ben Walker
2019-05-30 21:29 ` [dpdk-dev] [PATCH v2 05/12] eal/pci: Add function pci_ignore_device Ben Walker
2019-05-30 21:29 ` [dpdk-dev] [PATCH v2 06/12] eal/pci: Correctly test whitelist/blacklist in rte_pci_get_iommu_class Ben Walker
2019-05-30 21:29 ` [dpdk-dev] [PATCH v2 07/12] eal/pci: Reverse if check " Ben Walker
2019-05-30 21:29 ` [dpdk-dev] [PATCH v2 08/12] eal/pci: Collapse loops " Ben Walker
2019-05-30 21:29 ` [dpdk-dev] [PATCH v2 09/12] eal/pci: Simplify rte_pci_get_iommu class by using a switch Ben Walker
2019-05-30 21:29 ` [dpdk-dev] [PATCH v2 10/12] eal/pci: Finding a device bound to UIO does not force PA Ben Walker
2019-05-30 21:29 ` [dpdk-dev] [PATCH v2 11/12] eal/pci: rte_pci_get_iommu_class handles no drivers Ben Walker
2019-05-30 21:29 ` [dpdk-dev] [PATCH v2 12/12] eal: If bus can't decide PA or VA, try to access PA Ben Walker
2019-05-30 17:48 ` [dpdk-dev] [PATCH 02/12] eal/pci: Inline several functions into rte_pci_get_iommu_class Ben Walker
2019-05-30 17:57 ` Stephen Hemminger
2019-05-30 18:09 ` Walker, Benjamin
2019-05-30 17:48 ` [dpdk-dev] [PATCH 03/12] eal/pci: Rework loops in rte_pci_get_iommu_class Ben Walker
2019-05-30 17:48 ` [dpdk-dev] [PATCH 04/12] eal/pci: Collapse two " Ben Walker
2019-05-30 17:48 ` [dpdk-dev] [PATCH 05/12] eal/pci: Add function pci_ignore_device Ben Walker
2019-05-30 17:48 ` [dpdk-dev] [PATCH 06/12] eal/pci: Correctly test whitelist/blacklist in rte_pci_get_iommu_class Ben Walker
2019-05-30 17:48 ` [dpdk-dev] [PATCH 07/12] eal/pci: Reverse if check " Ben Walker
2019-05-30 17:48 ` [dpdk-dev] [PATCH 08/12] eal/pci: Collapse loops " Ben Walker
2019-05-30 17:48 ` [dpdk-dev] [PATCH 09/12] eal/pci: Simplify rte_pci_get_iommu class by using a switch Ben Walker
2019-05-30 17:48 ` [dpdk-dev] [PATCH 10/12] eal/pci: Finding a device bound to UIO does not force PA Ben Walker
2019-05-30 17:48 ` [dpdk-dev] [PATCH 11/12] eal/pci: rte_pci_get_iommu_class handles no drivers Ben Walker
2019-05-30 17:48 ` [dpdk-dev] [PATCH 12/12] eal: If bus can't decide PA or VA, try to access PA Ben Walker
2019-06-03 10:48 ` [dpdk-dev] eal/pci: Improve automatic selection of IOVA mode David Marchand
2019-06-03 16:44 ` Walker, Benjamin
2019-06-14 8:42 ` David Marchand
2019-06-14 9:39 ` [dpdk-dev] [PATCH v2 0/3] " David Marchand
2019-06-14 9:39 ` David Marchand [this message]
2019-06-14 9:39 ` [dpdk-dev] [PATCH v2 2/3] eal: compute IOVA mode based on PA availability David Marchand
2019-07-03 10:17 ` Burakov, Anatoly
2019-07-04 7:13 ` David Marchand
2019-06-14 9:39 ` [dpdk-dev] [PATCH v2 3/3] bus/pci: only consider usable devices to select IOVA mode David Marchand
2019-07-03 10:45 ` Burakov, Anatoly
2019-07-04 9:18 ` David Marchand
2019-07-04 10:43 ` Burakov, Anatoly
2019-07-04 10:47 ` David Marchand
2019-07-04 17:14 ` Stephen Hemminger
2019-07-05 7:58 ` David Marchand
2019-07-05 16:27 ` Stephen Hemminger
2019-07-05 8:26 ` Thomas Monjalon
2019-06-27 17:05 ` [dpdk-dev] [PATCH v2 0/3] Improve automatic selection of " Thomas Monjalon
2019-07-02 14:18 ` Thomas Monjalon
2019-07-05 14:57 ` Thomas Monjalon
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1560505157-9769-2-git-send-email-david.marchand@redhat.com \
--to=david.marchand@redhat.com \
--cc=anatoly.burakov@intel.com \
--cc=benjamin.walker@intel.com \
--cc=dev@dpdk.org \
--cc=ferruh.yigit@intel.com \
--cc=jerinj@marvell.com \
--cc=maxime.coquelin@redhat.com \
--cc=stable@dpdk.org \
--cc=thomas@monjalon.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).