From: Alejandro Lucero <alejandro.lucero@netronome.com>
To: xiao.w.wang@intel.com
Cc: tiwei.bie@intel.com, Maxime Coquelin <maxime.coquelin@redhat.com>,
dev <dev@dpdk.org>,
zhihong.wang@intel.com, xiaolong.ye@intel.com
Subject: Re: [dpdk-dev] [PATCH 6/9] net/ifc: add devarg for LM mode
Date: Wed, 12 Dec 2018 10:15:17 +0000 [thread overview]
Message-ID: <CAD+H990oMvFquwv4xHc1uQEJ4rFd4eFdWSJ-imsw2d50auJKOQ@mail.gmail.com> (raw)
In-Reply-To: <20181128094607.106173-7-xiao.w.wang@intel.com>
On Wed, Nov 28, 2018 at 9:56 AM Xiao Wang <xiao.w.wang@intel.com> wrote:
> This patch series enables a new method for live migration, i.e. software
> assisted live migration. This patch provides a device argument for user
> to choose the methold.
>
> When "swlm=1", driver/device will do live migration with a relay thread
> dealing with dirty page logging. Without this parameter, device will do
> dirty page logging and there's no relay thread consuming CPU resource.
>
>
I'm a bit confused with this mode. If it is a relay thread doing the dirty
page logging, does it mean that the datapath is through the relay thread
and not between the VM and the vdpa device?
> Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
> ---
> drivers/net/ifc/ifcvf_vdpa.c | 15 +++++++++++++++
> 1 file changed, 15 insertions(+)
>
> diff --git a/drivers/net/ifc/ifcvf_vdpa.c b/drivers/net/ifc/ifcvf_vdpa.c
> index c0e50354a..e9cc8d7bc 100644
> --- a/drivers/net/ifc/ifcvf_vdpa.c
> +++ b/drivers/net/ifc/ifcvf_vdpa.c
> @@ -8,6 +8,7 @@
> #include <sys/ioctl.h>
> #include <sys/epoll.h>
> #include <linux/virtio_net.h>
> +#include <stdbool.h>
>
> #include <rte_malloc.h>
> #include <rte_memory.h>
> @@ -31,9 +32,11 @@
> #endif
>
> #define IFCVF_VDPA_MODE "vdpa"
> +#define IFCVF_SW_FALLBACK_LM "swlm"
>
> static const char * const ifcvf_valid_arguments[] = {
> IFCVF_VDPA_MODE,
> + IFCVF_SW_FALLBACK_LM,
> NULL
> };
>
> @@ -56,6 +59,7 @@ struct ifcvf_internal {
> rte_atomic32_t dev_attached;
> rte_atomic32_t running;
> rte_spinlock_t lock;
> + bool sw_lm;
> };
>
> struct internal_list {
> @@ -767,6 +771,7 @@ ifcvf_pci_probe(struct rte_pci_driver *pci_drv
> __rte_unused,
> struct ifcvf_internal *internal = NULL;
> struct internal_list *list = NULL;
> int vdpa_mode = 0;
> + int sw_fallback_lm = 0;
> struct rte_kvargs *kvlist = NULL;
> int ret = 0;
>
> @@ -826,6 +831,16 @@ ifcvf_pci_probe(struct rte_pci_driver *pci_drv
> __rte_unused,
> internal->dev_addr.type = PCI_ADDR;
> list->internal = internal;
>
> + if (rte_kvargs_count(kvlist, IFCVF_SW_FALLBACK_LM)) {
> + ret = rte_kvargs_process(kvlist, IFCVF_SW_FALLBACK_LM,
> + &open_int, &sw_fallback_lm);
> + if (ret < 0)
> + goto error;
> + internal->sw_lm = sw_fallback_lm ? true : false;
> + } else {
> + internal->sw_lm = false;
> + }
> +
> internal->did = rte_vdpa_register_device(&internal->dev_addr,
> &ifcvf_ops);
> if (internal->did < 0) {
> --
> 2.15.1
>
>
next prev parent reply other threads:[~2018-12-12 10:15 UTC|newest]
Thread overview: 86+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-28 9:45 [dpdk-dev] [PATCH 0/9] support SW assisted VDPA live migration Xiao Wang
2018-11-28 9:45 ` [dpdk-dev] [PATCH 1/9] vhost: provide helper for host notifier ctrl Xiao Wang
2018-11-28 9:46 ` [dpdk-dev] [PATCH 2/9] vhost: provide helpers for virtio ring relay Xiao Wang
2018-12-04 6:22 ` Tiwei Bie
2018-12-12 6:51 ` Wang, Xiao W
2018-12-13 1:10 ` [dpdk-dev] [PATCH v2 0/9] support SW assisted VDPA live migration Xiao Wang
2018-12-13 1:10 ` [dpdk-dev] [PATCH v2 1/9] vhost: provide helper for host notifier ctrl Xiao Wang
2018-12-13 1:10 ` [dpdk-dev] [PATCH v2 2/9] vhost: provide helpers for virtio ring relay Xiao Wang
2018-12-13 10:09 ` [dpdk-dev] [PATCH v3 0/9] support SW assisted VDPA live migration Xiao Wang
2018-12-13 10:09 ` [dpdk-dev] [PATCH v3 1/9] vhost: provide helper for host notifier ctrl Xiao Wang
2018-12-14 13:33 ` Maxime Coquelin
2018-12-14 19:05 ` Wang, Xiao W
2018-12-14 21:16 ` [dpdk-dev] [PATCH v4 00/10] support SW assisted VDPA live migration Xiao Wang
2018-12-14 21:16 ` [dpdk-dev] [PATCH v4 01/10] vhost: remove unused internal API Xiao Wang
2018-12-16 8:58 ` Maxime Coquelin
2018-12-14 21:16 ` [dpdk-dev] [PATCH v4 02/10] vhost: provide helper for host notifier ctrl Xiao Wang
2018-12-16 9:00 ` Maxime Coquelin
2018-12-14 21:16 ` [dpdk-dev] [PATCH v4 03/10] vhost: provide helpers for virtio ring relay Xiao Wang
2018-12-16 9:10 ` Maxime Coquelin
2018-12-17 8:51 ` Wang, Xiao W
2018-12-17 11:02 ` Maxime Coquelin
2018-12-17 14:41 ` Wang, Xiao W
2018-12-17 19:00 ` Maxime Coquelin
2018-12-18 8:27 ` Wang, Xiao W
2018-12-18 8:44 ` Thomas Monjalon
2018-12-18 8:01 ` [dpdk-dev] [PATCH v5 00/10] support SW assisted VDPA live migration Xiao Wang
2018-12-18 8:01 ` [dpdk-dev] [PATCH v5 01/10] vhost: remove unused internal API Xiao Wang
2018-12-18 8:01 ` [dpdk-dev] [PATCH v5 02/10] vhost: provide helper for host notifier ctrl Xiao Wang
2018-12-18 15:37 ` Ferruh Yigit
2018-12-18 8:02 ` [dpdk-dev] [PATCH v5 03/10] vhost: provide helpers for virtio ring relay Xiao Wang
2018-12-18 8:02 ` [dpdk-dev] [PATCH v5 04/10] net/ifc: dump debug message for error Xiao Wang
2018-12-18 8:02 ` [dpdk-dev] [PATCH v5 05/10] net/ifc: store only registered device instance Xiao Wang
2018-12-18 8:02 ` [dpdk-dev] [PATCH v5 06/10] net/ifc: detect if VDPA mode is specified Xiao Wang
2018-12-18 8:02 ` [dpdk-dev] [PATCH v5 07/10] net/ifc: add devarg for LM mode Xiao Wang
2018-12-18 11:23 ` Maxime Coquelin
2018-12-18 8:02 ` [dpdk-dev] [PATCH v5 08/10] net/ifc: use lib API for used ring logging Xiao Wang
2018-12-18 8:02 ` [dpdk-dev] [PATCH v5 09/10] net/ifc: support SW assisted VDPA live migration Xiao Wang
2018-12-18 11:33 ` Maxime Coquelin
2018-12-18 8:02 ` [dpdk-dev] [PATCH v5 10/10] doc: update ifc NIC document Xiao Wang
2018-12-18 11:35 ` Maxime Coquelin
2018-12-14 21:16 ` [dpdk-dev] [PATCH v4 04/10] net/ifc: dump debug message for error Xiao Wang
2018-12-16 9:11 ` Maxime Coquelin
2018-12-14 21:16 ` [dpdk-dev] [PATCH v4 05/10] net/ifc: store only registered device instance Xiao Wang
2018-12-16 9:12 ` Maxime Coquelin
2018-12-14 21:16 ` [dpdk-dev] [PATCH v4 06/10] net/ifc: detect if VDPA mode is specified Xiao Wang
2018-12-16 9:17 ` Maxime Coquelin
2018-12-17 8:54 ` Wang, Xiao W
2018-12-14 21:16 ` [dpdk-dev] [PATCH v4 07/10] net/ifc: add devarg for LM mode Xiao Wang
2018-12-16 9:21 ` Maxime Coquelin
2018-12-17 9:00 ` Wang, Xiao W
2018-12-14 21:16 ` [dpdk-dev] [PATCH v4 08/10] net/ifc: use lib API for used ring logging Xiao Wang
2018-12-16 9:24 ` Maxime Coquelin
2018-12-14 21:16 ` [dpdk-dev] [PATCH v4 09/10] net/ifc: support SW assisted VDPA live migration Xiao Wang
2018-12-16 9:35 ` Maxime Coquelin
2018-12-17 9:12 ` Wang, Xiao W
2018-12-17 11:08 ` Maxime Coquelin
2018-12-14 21:16 ` [dpdk-dev] [PATCH v4 10/10] doc: update ifc NIC document Xiao Wang
2018-12-16 9:36 ` Maxime Coquelin
2018-12-17 9:15 ` Wang, Xiao W
2018-12-18 14:01 ` [dpdk-dev] [PATCH v4 00/10] support SW assisted VDPA live migration Maxime Coquelin
2018-12-13 10:09 ` [dpdk-dev] [PATCH v3 2/9] vhost: provide helpers for virtio ring relay Xiao Wang
2018-12-13 10:09 ` [dpdk-dev] [PATCH v3 3/9] net/ifc: dump debug message for error Xiao Wang
2018-12-13 10:09 ` [dpdk-dev] [PATCH v3 4/9] net/ifc: store only registered device instance Xiao Wang
2018-12-13 10:09 ` [dpdk-dev] [PATCH v3 5/9] net/ifc: detect if VDPA mode is specified Xiao Wang
2018-12-13 10:09 ` [dpdk-dev] [PATCH v3 6/9] net/ifc: add devarg for LM mode Xiao Wang
2018-12-13 10:09 ` [dpdk-dev] [PATCH v3 7/9] net/ifc: use lib API for used ring logging Xiao Wang
2018-12-13 10:09 ` [dpdk-dev] [PATCH v3 8/9] net/ifc: support SW assisted VDPA live migration Xiao Wang
2018-12-13 10:09 ` [dpdk-dev] [PATCH v3 9/9] doc: update ifc NIC document Xiao Wang
2018-12-13 1:10 ` [dpdk-dev] [PATCH v2 3/9] net/ifc: dump debug message for error Xiao Wang
2018-12-13 1:10 ` [dpdk-dev] [PATCH v2 4/9] net/ifc: store only registered device instance Xiao Wang
2018-12-13 1:10 ` [dpdk-dev] [PATCH v2 5/9] net/ifc: detect if VDPA mode is specified Xiao Wang
2018-12-13 1:10 ` [dpdk-dev] [PATCH v2 6/9] net/ifc: add devarg for LM mode Xiao Wang
2018-12-13 1:10 ` [dpdk-dev] [PATCH v2 7/9] net/ifc: use lib API for used ring logging Xiao Wang
2018-12-13 1:10 ` [dpdk-dev] [PATCH v2 8/9] net/ifc: support SW assisted VDPA live migration Xiao Wang
2018-12-13 1:10 ` [dpdk-dev] [PATCH v2 9/9] doc: update ifc NIC document Xiao Wang
2018-11-28 9:46 ` [dpdk-dev] [PATCH 3/9] net/ifc: dump debug message for error Xiao Wang
2018-11-28 9:46 ` [dpdk-dev] [PATCH 4/9] net/ifc: store only registered device instance Xiao Wang
2018-11-28 9:46 ` [dpdk-dev] [PATCH 5/9] net/ifc: detect if VDPA mode is specified Xiao Wang
2018-11-28 9:46 ` [dpdk-dev] [PATCH 6/9] net/ifc: add devarg for LM mode Xiao Wang
2018-12-04 6:31 ` Tiwei Bie
2018-12-12 6:53 ` Wang, Xiao W
2018-12-12 10:15 ` Alejandro Lucero [this message]
2018-12-12 10:23 ` Wang, Xiao W
2018-11-28 9:46 ` [dpdk-dev] [PATCH 7/9] net/ifc: use lib API for used ring logging Xiao Wang
2018-11-28 9:46 ` [dpdk-dev] [PATCH 8/9] net/ifc: support SW assisted VDPA live migration Xiao Wang
2018-11-28 9:46 ` [dpdk-dev] [PATCH 9/9] doc: update ifc NIC document Xiao Wang
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