From: Gaetan Rivet <gaetan.rivet@6wind.com>
To: dev@dpdk.org
Cc: Gaetan Rivet <gaetan.rivet@6wind.com>
Subject: [dpdk-dev] [PATCH v2 1/3] pci: implement plug/unplug bus operation
Date: Thu, 1 Jun 2017 12:12:00 +0200 [thread overview]
Message-ID: <cc66d69bef9787a81a3d50ac0a51a9ca9627c7f0.1496310671.git.gaetan.rivet@6wind.com> (raw)
In-Reply-To: <cover.1496310671.git.gaetan.rivet@6wind.com>
In-Reply-To: <cover.1496310671.git.gaetan.rivet@6wind.com>
Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
---
lib/librte_eal/common/eal_common_pci.c | 56 ++++++++++++++++++++++++++++++++++
1 file changed, 56 insertions(+)
diff --git a/lib/librte_eal/common/eal_common_pci.c b/lib/librte_eal/common/eal_common_pci.c
index 2a52b9e..580ce86 100644
--- a/lib/librte_eal/common/eal_common_pci.c
+++ b/lib/librte_eal/common/eal_common_pci.c
@@ -76,6 +76,7 @@
#include <rte_pci.h>
#include <rte_per_lcore.h>
#include <rte_memory.h>
+#include <rte_memcpy.h>
#include <rte_memzone.h>
#include <rte_eal.h>
#include <rte_string_fns.h>
@@ -545,12 +546,67 @@ pci_find_device(rte_dev_match_t match, const void *data)
return NULL;
}
+static int
+pci_plug(struct rte_devargs *da)
+{
+ struct rte_pci_device *pdev;
+ struct rte_pci_addr addr;
+
+ if (da == NULL)
+ return -EINVAL;
+ if (pci_parse(da->name, &addr))
+ return -EFAULT;
+ /*
+ * Update eventual pci device in global list.
+ * Insert it if none was found.
+ */
+ if (pci_update_device(&addr) < 0)
+ return -EIO;
+ /* Find the current device holding this address in the bus. */
+ FOREACH_DEVICE_ON_PCIBUS(pdev) {
+ if (rte_eal_compare_pci_addr(&pdev->addr, &addr))
+ continue;
+ /* Update eventual devargs. */
+ if (pdev->device.devargs &&
+ da != pdev->device.devargs) {
+ /* TODO: cleanup free */
+ free(pdev->device.devargs->args);
+ rte_memcpy(pdev->device.devargs, da, sizeof(*da));
+ }
+ break;
+ }
+ if (rte_pci_probe_one(&addr))
+ return -ENODEV;
+ /* Get back new device name. */
+ if (pdev->device.devargs &&
+ da != pdev->device.devargs)
+ snprintf(da->name, sizeof(da->name), "%s",
+ pdev->device.devargs->name);
+ return 0;
+}
+
+static int
+pci_unplug(struct rte_devargs *da)
+{
+ struct rte_pci_addr addr;
+
+ if (da == NULL)
+ return -EINVAL;
+ if (pci_parse(da->name, &addr))
+ return -EFAULT;
+ if (rte_pci_detach(&addr))
+ return -ENODEV;
+ return 0;
+}
+
struct rte_pci_bus rte_pci_bus = {
.bus = {
.scan = rte_pci_scan,
.probe = rte_pci_probe,
.find_device = pci_find_device,
.parse = pci_parse,
+ .plug = pci_plug,
+ .unplug = pci_unplug,
},
.device_list = TAILQ_HEAD_INITIALIZER(rte_pci_bus.device_list),
.driver_list = TAILQ_HEAD_INITIALIZER(rte_pci_bus.driver_list),
--
2.1.4
next prev parent reply other threads:[~2017-06-01 10:12 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-24 15:18 [dpdk-dev] [PATCH 0/3] eal: complete attach / detach support Gaetan Rivet
2017-05-24 15:18 ` [dpdk-dev] [PATCH 1/3] pci: implement attach/detach bus operation Gaetan Rivet
2017-05-24 15:18 ` [dpdk-dev] [PATCH 2/3] vdev: implement attach " Gaetan Rivet
2017-05-24 15:18 ` [dpdk-dev] [PATCH 3/3] vdev: use standard bus registration function Gaetan Rivet
2017-06-01 10:11 ` [dpdk-dev] [PATCH v2 0/3] eal: complete attach / detach support Gaetan Rivet
2017-06-01 10:12 ` Gaetan Rivet [this message]
2017-06-01 10:12 ` [dpdk-dev] [PATCH v2 2/3] dev: remove vdev function dependency Gaetan Rivet
2017-06-01 10:12 ` [dpdk-dev] [PATCH v2 3/3] vdev: use standard bus registration function Gaetan Rivet
2017-06-07 23:58 ` [dpdk-dev] [PATCH v3 0/3] eal: complete attach / detach support Gaetan Rivet
2017-06-07 23:58 ` [dpdk-dev] [PATCH v3 1/3] pci: implement hotplug bus operation Gaetan Rivet
2017-06-07 23:58 ` [dpdk-dev] [PATCH v3 2/3] dev: remove vdev function dependency Gaetan Rivet
2017-06-21 14:42 ` Thomas Monjalon
2017-06-07 23:58 ` [dpdk-dev] [PATCH v3 3/3] vdev: use standard bus registration function Gaetan Rivet
2017-06-21 14:41 ` 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=cc66d69bef9787a81a3d50ac0a51a9ca9627c7f0.1496310671.git.gaetan.rivet@6wind.com \
--to=gaetan.rivet@6wind.com \
--cc=dev@dpdk.org \
/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).