From: Maxime Coquelin <maxime.coquelin@redhat.com>
To: dev@dpdk.org, chenbo.xia@intel.com, olivier.matz@6wind.com,
amorenoz@redhat.com, david.marchand@redhat.com
Cc: Maxime Coquelin <maxime.coquelin@redhat.com>
Subject: [dpdk-dev] [PATCH 37/40] net/virtio: introduce backend data
Date: Sun, 20 Dec 2020 22:14:02 +0100 [thread overview]
Message-ID: <20201220211405.313012-38-maxime.coquelin@redhat.com> (raw)
In-Reply-To: <20201220211405.313012-1-maxime.coquelin@redhat.com>
The goal of this patch is to introduce backend-specific
data in order to better isolate what is backend-specific
from what is generic to Virtio-user.
For now, only Vhost-user protocol features are moved to
Vhost-user backend data.
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
drivers/net/virtio/virtio_user/vhost.h | 1 +
drivers/net/virtio/virtio_user/vhost_kernel.c | 7 +++
drivers/net/virtio/virtio_user/vhost_user.c | 46 +++++++++++++++----
drivers/net/virtio/virtio_user/vhost_vdpa.c | 8 ++++
.../net/virtio/virtio_user/virtio_user_dev.c | 2 +
.../net/virtio/virtio_user/virtio_user_dev.h | 3 +-
6 files changed, 58 insertions(+), 9 deletions(-)
diff --git a/drivers/net/virtio/virtio_user/vhost.h b/drivers/net/virtio/virtio_user/vhost.h
index b488ac78a1..ee5598226d 100644
--- a/drivers/net/virtio/virtio_user/vhost.h
+++ b/drivers/net/virtio/virtio_user/vhost.h
@@ -57,6 +57,7 @@ struct virtio_user_dev;
struct virtio_user_backend_ops {
int (*setup)(struct virtio_user_dev *dev);
+ int (*destroy)(struct virtio_user_dev *dev);
int (*get_backend_features)(uint64_t *features);
int (*set_owner)(struct virtio_user_dev *dev);
int (*get_features)(struct virtio_user_dev *dev, uint64_t *features);
diff --git a/drivers/net/virtio/virtio_user/vhost_kernel.c b/drivers/net/virtio/virtio_user/vhost_kernel.c
index 2fd00afa84..023fddcd69 100644
--- a/drivers/net/virtio/virtio_user/vhost_kernel.c
+++ b/drivers/net/virtio/virtio_user/vhost_kernel.c
@@ -357,6 +357,12 @@ vhost_kernel_setup(struct virtio_user_dev *dev)
return 0;
}
+static int
+vhost_kernel_destroy(struct virtio_user_dev *dev)
+{
+ return 0;
+}
+
static int
vhost_kernel_set_backend(int vhostfd, int tapfd)
{
@@ -455,6 +461,7 @@ vhost_kernel_get_backend_features(uint64_t *features)
struct virtio_user_backend_ops virtio_ops_kernel = {
.setup = vhost_kernel_setup,
+ .destroy = vhost_kernel_destroy,
.get_backend_features = vhost_kernel_get_backend_features,
.set_owner = vhost_kernel_set_owner,
.get_features = vhost_kernel_get_features,
diff --git a/drivers/net/virtio/virtio_user/vhost_user.c b/drivers/net/virtio/virtio_user/vhost_user.c
index f67c40e047..e96b1d8b9c 100644
--- a/drivers/net/virtio/virtio_user/vhost_user.c
+++ b/drivers/net/virtio/virtio_user/vhost_user.c
@@ -17,6 +17,9 @@
#include "vhost.h"
#include "virtio_user_dev.h"
+struct vhost_user_data {
+ uint64_t protocol_features;
+};
#ifndef VHOST_USER_F_PROTOCOL_FEATURES
#define VHOST_USER_F_PROTOCOL_FEATURES 30
@@ -274,6 +277,7 @@ static int
vhost_user_get_features(struct virtio_user_dev *dev, uint64_t *features)
{
int ret;
+ struct vhost_user_data *data = dev->backend_data;
struct vhost_user_msg msg = {
.request = VHOST_USER_GET_FEATURES,
.flags = VHOST_USER_VERSION,
@@ -303,17 +307,17 @@ vhost_user_get_features(struct virtio_user_dev *dev, uint64_t *features)
return 0;
/* Negotiate protocol features */
- ret = vhost_user_get_protocol_features(dev, &dev->protocol_features);
+ ret = vhost_user_get_protocol_features(dev, &data->protocol_features);
if (ret < 0)
goto err;
- dev->protocol_features &= VHOST_USER_SUPPORTED_PROTOCOL_FEATURES;
+ data->protocol_features &= VHOST_USER_SUPPORTED_PROTOCOL_FEATURES;
- ret = vhost_user_set_protocol_features(dev, dev->protocol_features);
+ ret = vhost_user_set_protocol_features(dev, data->protocol_features);
if (ret < 0)
goto err;
- if (!(dev->protocol_features & (1ULL << VHOST_USER_PROTOCOL_F_MQ)))
+ if (!(data->protocol_features & (1ULL << VHOST_USER_PROTOCOL_F_MQ)))
dev->unsupported_features |= (1ull << VIRTIO_NET_F_MQ);
return 0;
@@ -429,12 +433,13 @@ vhost_user_set_memory_table(struct virtio_user_dev *dev)
struct walk_arg wa;
int fds[VHOST_MEMORY_MAX_NREGIONS];
int ret, fd_num;
+ struct vhost_user_data *data = dev->backend_data;
struct vhost_user_msg msg = {
.request = VHOST_USER_SET_MEM_TABLE,
.flags = VHOST_USER_VERSION,
};
- if (dev->protocol_features & (1ULL << VHOST_USER_PROTOCOL_F_REPLY_ACK))
+ if (data->protocol_features & (1ULL << VHOST_USER_PROTOCOL_F_REPLY_ACK))
msg.flags |= VHOST_USER_NEED_REPLY_MASK;
wa.region_nr = 0;
@@ -613,6 +618,7 @@ static int
vhost_user_get_status(struct virtio_user_dev *dev, uint8_t *status)
{
int ret;
+ struct vhost_user_data *data = dev->backend_data;
struct vhost_user_msg msg = {
.request = VHOST_USER_GET_STATUS,
.flags = VHOST_USER_VERSION,
@@ -629,7 +635,7 @@ vhost_user_get_status(struct virtio_user_dev *dev, uint8_t *status)
if (!(dev->device_features & (1ULL << VHOST_USER_F_PROTOCOL_FEATURES)))
return -ENOTSUP;
- if (!(dev->protocol_features & (1ULL << VHOST_USER_PROTOCOL_F_STATUS)))
+ if (!(data->protocol_features & (1ULL << VHOST_USER_PROTOCOL_F_STATUS)))
return -ENOTSUP;
ret = vhost_user_write(dev->vhostfd, &msg, NULL, 0);
@@ -666,6 +672,7 @@ static int
vhost_user_set_status(struct virtio_user_dev *dev, uint8_t status)
{
int ret;
+ struct vhost_user_data *data = dev->backend_data;
struct vhost_user_msg msg = {
.request = VHOST_USER_SET_STATUS,
.flags = VHOST_USER_VERSION,
@@ -673,7 +680,7 @@ vhost_user_set_status(struct virtio_user_dev *dev, uint8_t status)
.payload.u64 = status,
};
- if (dev->protocol_features & (1ULL << VHOST_USER_PROTOCOL_F_REPLY_ACK))
+ if (data->protocol_features & (1ULL << VHOST_USER_PROTOCOL_F_REPLY_ACK))
msg.flags |= VHOST_USER_NEED_REPLY_MASK;
/*
@@ -687,7 +694,7 @@ vhost_user_set_status(struct virtio_user_dev *dev, uint8_t status)
if (!(dev->device_features & (1ULL << VHOST_USER_F_PROTOCOL_FEATURES)))
return -ENOTSUP;
- if (!(dev->protocol_features & (1ULL << VHOST_USER_PROTOCOL_F_STATUS)))
+ if (!(data->protocol_features & (1ULL << VHOST_USER_PROTOCOL_F_STATUS)))
return -ENOTSUP;
ret = vhost_user_write(dev->vhostfd, &msg, NULL, 0);
@@ -747,6 +754,17 @@ vhost_user_setup(struct virtio_user_dev *dev)
int fd;
int flag;
struct sockaddr_un un;
+ struct vhost_user_data *data;
+
+ data = malloc(sizeof(*data));
+ if (!data) {
+ PMD_DRV_LOG(ERR, "(%s) Failed to allocate Vhost-user data\n", dev->path);
+ return -1;
+ }
+
+ memset(data, 0, sizeof(*data));
+
+ dev->backend_data = data;
fd = socket(AF_UNIX, SOCK_STREAM, 0);
if (fd < 0) {
@@ -781,6 +799,17 @@ vhost_user_setup(struct virtio_user_dev *dev)
return 0;
}
+static int
+vhost_user_destroy(struct virtio_user_dev *dev)
+{
+ if (dev->backend_data) {
+ free(dev->backend_data);
+ dev->backend_data = NULL;
+ }
+
+ return 0;
+}
+
static int
vhost_user_enable_queue_pair(struct virtio_user_dev *dev,
uint16_t pair_idx,
@@ -815,6 +844,7 @@ vhost_user_get_backend_features(uint64_t *features)
struct virtio_user_backend_ops virtio_ops_user = {
.setup = vhost_user_setup,
+ .destroy = vhost_user_destroy,
.get_backend_features = vhost_user_get_backend_features,
.set_owner = vhost_user_set_owner,
.get_features = vhost_user_get_features,
diff --git a/drivers/net/virtio/virtio_user/vhost_vdpa.c b/drivers/net/virtio/virtio_user/vhost_vdpa.c
index c826f333e0..b29426d767 100644
--- a/drivers/net/virtio/virtio_user/vhost_vdpa.c
+++ b/drivers/net/virtio/virtio_user/vhost_vdpa.c
@@ -287,6 +287,13 @@ vhost_vdpa_setup(struct virtio_user_dev *dev)
return 0;
}
+static int
+vhost_vdpa_destroy(struct virtio_user_dev *dev __rte_unused)
+{
+ return;
+ return 0;
+}
+
static int
vhost_vdpa_enable_queue_pair(struct virtio_user_dev *dev,
uint16_t pair_idx,
@@ -322,6 +329,7 @@ vhost_vdpa_get_backend_features(uint64_t *features)
struct virtio_user_backend_ops virtio_ops_vdpa = {
.setup = vhost_vdpa_setup,
+ .destroy = vhost_vdpa_destroy,
.get_backend_features = vhost_vdpa_get_backend_features,
.set_owner = vhost_vdpa_set_owner,
.get_features = vhost_vdpa_get_features,
diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.c b/drivers/net/virtio/virtio_user/virtio_user_dev.c
index 974de133bc..8d19a0addd 100644
--- a/drivers/net/virtio/virtio_user/virtio_user_dev.c
+++ b/drivers/net/virtio/virtio_user/virtio_user_dev.c
@@ -620,6 +620,8 @@ virtio_user_dev_uninit(struct virtio_user_dev *dev)
if (dev->is_server)
unlink(dev->path);
+
+ dev->ops->destroy(dev);
}
uint8_t
diff --git a/drivers/net/virtio/virtio_user/virtio_user_dev.h b/drivers/net/virtio/virtio_user/virtio_user_dev.h
index b2da2944e9..ec73d5de11 100644
--- a/drivers/net/virtio/virtio_user/virtio_user_dev.h
+++ b/drivers/net/virtio/virtio_user/virtio_user_dev.h
@@ -30,7 +30,6 @@ struct virtio_user_dev {
int vhostfd;
int listenfd; /* listening fd */
bool is_server; /* server or client mode */
- uint64_t protocol_features; /* negotiated protocol features*/
/* for vhost_kernel backend */
char *ifname;
@@ -66,6 +65,8 @@ struct virtio_user_dev {
struct virtio_user_backend_ops *ops;
pthread_mutex_t mutex;
bool started;
+
+ void *backend_data;
};
int virtio_user_dev_set_features(struct virtio_user_dev *dev);
--
2.29.2
next prev parent reply other threads:[~2020-12-20 21:25 UTC|newest]
Thread overview: 149+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-20 21:13 [dpdk-dev] [PATCH 00/40] net/virtio: Virtio PMD rework Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 01/40] bus/vdev: add helper to get vdev from eth dev Maxime Coquelin
2020-12-30 3:02 ` Xia, Chenbo
2021-01-05 21:15 ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 02/40] net/virtio: Introduce Virtio bus type Maxime Coquelin
2020-12-30 3:02 ` Xia, Chenbo
2021-01-05 21:15 ` David Marchand
2021-01-14 9:24 ` Maxime Coquelin
2021-01-14 10:54 ` Maxime Coquelin
2021-01-14 11:55 ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 03/40] net/virtio: refactor virtio-user device Maxime Coquelin
2020-12-30 3:02 ` Xia, Chenbo
2021-01-05 21:16 ` David Marchand
2021-01-14 9:26 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 04/40] net/virtio: introduce PCI device metadata Maxime Coquelin
2020-12-30 3:02 ` Xia, Chenbo
2021-01-05 21:16 ` David Marchand
2021-01-14 11:05 ` Maxime Coquelin
2021-01-14 14:40 ` David Marchand
2021-01-14 14:44 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 05/40] net/virtio: move PCI device init in dedicated file Maxime Coquelin
2020-12-30 3:02 ` Xia, Chenbo
2021-01-05 21:19 ` David Marchand
2021-01-14 16:04 ` Maxime Coquelin
2021-01-14 16:14 ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 06/40] net/virtio: move PCI specific dev init to PCI ethdev init Maxime Coquelin
2020-12-30 3:05 ` Xia, Chenbo
2021-01-06 8:58 ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 07/40] net/virtio: move MSIX detection to PCI ethdev Maxime Coquelin
2020-12-30 3:05 ` Xia, Chenbo
2021-01-06 8:22 ` David Marchand
2021-01-14 17:19 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 08/40] net/virtio: force IOVA as VA mode for Virtio-user Maxime Coquelin
2020-12-30 3:06 ` Xia, Chenbo
2021-01-06 9:06 ` David Marchand
2021-01-06 9:11 ` Thomas Monjalon
2021-01-06 9:22 ` Maxime Coquelin
2021-01-06 16:37 ` Kinsella, Ray
2021-01-06 9:14 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 09/40] net/virtio: store PCI type in Virtio device metadata Maxime Coquelin
2020-12-30 3:07 ` Xia, Chenbo
2021-01-06 9:14 ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 10/40] net/virtio: add callback for device closing Maxime Coquelin
2020-12-30 3:07 ` Xia, Chenbo
2021-01-06 9:33 ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 11/40] net/virtio: validate features at bus level Maxime Coquelin
2020-12-30 3:08 ` Xia, Chenbo
2021-01-06 9:33 ` David Marchand
2021-01-15 9:20 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 12/40] net/virtio: remove bus type enum Maxime Coquelin
2020-12-30 3:08 ` Xia, Chenbo
2021-01-06 9:33 ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 13/40] net/virtio: move PCI-specific fields to PCI device Maxime Coquelin
2020-12-30 3:08 ` Xia, Chenbo
2021-01-06 9:58 ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 14/40] net/virtio: pack virtio HW struct Maxime Coquelin
2020-12-30 3:09 ` Xia, Chenbo
2021-01-06 9:58 ` David Marchand
2021-01-15 9:35 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 15/40] net/virtio: move legacy IO to Virtio PCI Maxime Coquelin
2020-12-30 3:09 ` Xia, Chenbo
2021-01-06 10:09 ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 16/40] net/virtio: introduce generic virtio header Maxime Coquelin
2020-12-30 3:09 ` Xia, Chenbo
2021-01-06 10:08 ` David Marchand
2021-01-15 9:39 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 17/40] net/virtio: move features definition to generic header Maxime Coquelin
2020-12-30 3:14 ` Xia, Chenbo
2021-01-14 8:40 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 18/40] net/virtio: move virtqueue defines in " Maxime Coquelin
2020-12-30 3:14 ` Xia, Chenbo
2021-01-06 15:53 ` David Marchand
2021-01-15 10:55 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 19/40] net/virtio: move config definitions to " Maxime Coquelin
2020-12-30 3:15 ` Xia, Chenbo
2021-01-06 16:01 ` David Marchand
2021-01-15 11:01 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 20/40] net/virtio: make interrupt handling more generic Maxime Coquelin
2020-12-30 3:17 ` Xia, Chenbo
2021-01-14 8:43 ` Maxime Coquelin
2021-01-06 16:07 ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 21/40] net/virtio: move vring alignment to generic header Maxime Coquelin
2020-12-30 3:18 ` Xia, Chenbo
2021-01-06 16:13 ` David Marchand
2020-12-20 21:13 ` [dpdk-dev] [PATCH 22/40] net/virtio: remove last PCI refs in non-PCI code Maxime Coquelin
2020-12-30 3:25 ` Xia, Chenbo
2021-01-14 8:46 ` Maxime Coquelin
2021-01-06 16:18 ` David Marchand
2021-01-15 11:10 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 23/40] net/virtio: make Vhost-user req sender consistent Maxime Coquelin
2021-01-06 11:50 ` Xia, Chenbo
2021-01-15 9:47 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 24/40] net/virtio: add Virtio-user ops to set owner Maxime Coquelin
2021-01-06 11:50 ` Xia, Chenbo
2020-12-20 21:13 ` [dpdk-dev] [PATCH 25/40] net/virtio: add Virtio-user features ops Maxime Coquelin
2021-01-06 11:54 ` Xia, Chenbo
2021-01-13 13:43 ` Adrian Moreno
2021-01-13 13:54 ` Maxime Coquelin
2021-01-15 14:19 ` Maxime Coquelin
2021-01-13 13:57 ` Adrian Moreno
2021-01-15 14:29 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 26/40] net/virtio: add Virtio-user protocol " Maxime Coquelin
2021-01-06 11:55 ` Xia, Chenbo
2020-12-20 21:13 ` [dpdk-dev] [PATCH 27/40] net/virtio: add Virtio-user memory tables ops Maxime Coquelin
2021-01-06 11:57 ` Xia, Chenbo
2021-01-15 9:57 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 28/40] net/virtio: add Virtio-user vring setting ops Maxime Coquelin
2021-01-05 21:24 ` David Marchand
2021-01-06 12:01 ` Xia, Chenbo
2021-01-15 10:12 ` Maxime Coquelin
2021-01-06 12:03 ` Xia, Chenbo
2021-01-15 10:15 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 29/40] net/virtio: add Virtio-user vring file ops Maxime Coquelin
2021-01-05 21:24 ` David Marchand
2021-01-06 12:04 ` Xia, Chenbo
2021-01-15 10:17 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 30/40] net/virtio: add Virtio-user vring address ops Maxime Coquelin
2021-01-06 12:06 ` Xia, Chenbo
2021-01-15 10:19 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 31/40] net/virtio: add Virtio-user status ops Maxime Coquelin
2021-01-06 12:09 ` Xia, Chenbo
2021-01-15 10:48 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 32/40] net/virtio: remove useless request ops Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 33/40] net/virtio: improve Virtio-user errors handling Maxime Coquelin
2021-01-07 2:26 ` Xia, Chenbo
2021-01-15 11:09 ` Maxime Coquelin
2020-12-20 21:13 ` [dpdk-dev] [PATCH 34/40] net/virtio: move Vhost-user reqs to Vhost-user backend Maxime Coquelin
2020-12-20 21:14 ` [dpdk-dev] [PATCH 35/40] net/virtio: make server mode blocking Maxime Coquelin
2021-01-07 3:20 ` Xia, Chenbo
2021-01-15 11:13 ` Maxime Coquelin
2020-12-20 21:14 ` [dpdk-dev] [PATCH 36/40] net/virtio: move protocol features to Vhost-user Maxime Coquelin
2020-12-20 21:14 ` Maxime Coquelin [this message]
2021-01-05 21:26 ` [dpdk-dev] [PATCH 37/40] net/virtio: introduce backend data David Marchand
2021-01-13 17:18 ` Adrian Moreno
2021-01-15 16:49 ` Maxime Coquelin
2020-12-20 21:14 ` [dpdk-dev] [PATCH 38/40] net/virtio: move Vhost-user specifics to its backend Maxime Coquelin
2021-01-07 6:32 ` Xia, Chenbo
2021-01-15 12:03 ` Maxime Coquelin
2020-12-20 21:14 ` [dpdk-dev] [PATCH 39/40] net/virtio: move Vhost-kernel data " Maxime Coquelin
2021-01-07 6:42 ` Xia, Chenbo
2021-01-11 8:02 ` Xia, Chenbo
2021-01-15 11:54 ` Maxime Coquelin
2021-01-18 20:36 ` Maxime Coquelin
2020-12-20 21:14 ` [dpdk-dev] [PATCH 40/40] net/virtio: move Vhost-vDPA " Maxime Coquelin
2020-12-22 15:20 ` Maxime Coquelin
2021-01-07 6:50 ` Xia, Chenbo
2021-01-15 12:08 ` Maxime Coquelin
2021-01-11 8:05 ` Xia, Chenbo
2020-12-21 10:58 ` [dpdk-dev] [PATCH 00/40] net/virtio: Virtio PMD rework Maxime Coquelin
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=20201220211405.313012-38-maxime.coquelin@redhat.com \
--to=maxime.coquelin@redhat.com \
--cc=amorenoz@redhat.com \
--cc=chenbo.xia@intel.com \
--cc=david.marchand@redhat.com \
--cc=dev@dpdk.org \
--cc=olivier.matz@6wind.com \
/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).