search for: transport_iqn_len

Hi Linus, Here is the PULL request for the initial merge of tcm_vhost based on RFC-v5 code with MST's ACK appended to the initial merge commit. As promised, the commit is available from two different branches for you to consider merging as for-3.6 code. The 'for-next-merge' branch based on mainline commit 7409a6657ae using 3.5-rc2 code contains two duplicates of pre-merge vhost patch

Hi Linus, Here is the PULL request for the initial merge of tcm_vhost based on RFC-v5 code with MST's ACK appended to the initial merge commit. As promised, the commit is available from two different branches for you to consider merging as for-3.6 code. The 'for-next-merge' branch based on mainline commit 7409a6657ae using 3.5-rc2 code contains two duplicates of pre-merge vhost patch

...erspace to ensure a consistent vhost-scsi ABI. + * + * ABI Rev 0: All pre 2012 revisions used by prototype out-of-tree code + * ABI Rev 1: 2012 version for v3.6 kernel merge candiate + */ + +#define VHOST_SCSI_ABI_VERSION 1 + struct vhost_scsi_target { + int abi_version; unsigned char vhost_wwpn[TRANSPORT_IQN_LEN]; unsigned short vhost_tpgt; }; @@ -88,3 +98,4 @@ struct vhost_scsi_target { /* VHOST_SCSI specific defines */ #define VHOST_SCSI_SET_ENDPOINT _IOW(VHOST_VIRTIO, 0x40, struct vhost_scsi_target) #define VHOST_SCSI_CLEAR_ENDPOINT _IOW(VHOST_VIRTIO, 0x41, struct vhost_scsi_target) +#define VHOST...

...erspace to ensure a consistent vhost-scsi ABI. + * + * ABI Rev 0: All pre 2012 revisions used by prototype out-of-tree code + * ABI Rev 1: 2012 version for v3.6 kernel merge candiate + */ + +#define VHOST_SCSI_ABI_VERSION 1 + struct vhost_scsi_target { + int abi_version; unsigned char vhost_wwpn[TRANSPORT_IQN_LEN]; unsigned short vhost_tpgt; }; @@ -88,3 +98,4 @@ struct vhost_scsi_target { /* VHOST_SCSI specific defines */ #define VHOST_SCSI_SET_ENDPOINT _IOW(VHOST_VIRTIO, 0x40, struct vhost_scsi_target) #define VHOST_SCSI_CLEAR_ENDPOINT _IOW(VHOST_VIRTIO, 0x41, struct vhost_scsi_target) +#define VHOST...

...,14 @@ enum { VHOST_SCSI_VQ_IO = 2, }; +#define VHOST_SCSI_MAX_TARGET 256 + struct vhost_scsi { - struct tcm_vhost_tpg *vs_tpg; /* Protected by vhost_scsi->dev.mutex */ + /* Protected by vhost_scsi->dev.mutex */ + struct tcm_vhost_tpg *vs_tpg[VHOST_SCSI_MAX_TARGET]; + char vs_vhost_wwpn[TRANSPORT_IQN_LEN]; + bool vs_endpoint; + struct vhost_dev dev; struct vhost_virtqueue vqs[3]; @@ -564,13 +570,11 @@ static void vhost_scsi_handle_vq(struct vhost_scsi *vs) u32 exp_data_len, data_first, data_num, data_direction; unsigned out, in, i; int head, ret; + u8 target; /* Must use ioctl VHOST...

...,14 @@ enum { VHOST_SCSI_VQ_IO = 2, }; +#define VHOST_SCSI_MAX_TARGET 256 + struct vhost_scsi { - struct tcm_vhost_tpg *vs_tpg; /* Protected by vhost_scsi->dev.mutex */ + /* Protected by vhost_scsi->dev.mutex */ + struct tcm_vhost_tpg *vs_tpg[VHOST_SCSI_MAX_TARGET]; + char vs_vhost_wwpn[TRANSPORT_IQN_LEN]; + bool vs_endpoint; + struct vhost_dev dev; struct vhost_virtqueue vqs[3]; @@ -564,13 +570,11 @@ static void vhost_scsi_handle_vq(struct vhost_scsi *vs) u32 exp_data_len, data_first, data_num, data_direction; unsigned out, in, i; int head, ret; + u8 target; /* Must use ioctl VHOST...

...host_scsi->dev.mutex */ + struct tcm_vhost_tpg *vs_tpg[VHOST_SCSI_MAX_TARGET]; struct vhost_dev dev; struct vhost_virtqueue vqs[3]; struct vhost_work vs_completion_work; /* cmd completion work item */ struct llist_head vs_completion_list; /* cmd completion queue */ + char vs_vhost_wwpn[TRANSPORT_IQN_LEN]; + int vs_num_target; }; /* Local pointer to allocated TCM configfs fabric module */ @@ -564,13 +569,7 @@ static void vhost_scsi_handle_vq(struct vhost_scsi *vs) u32 exp_data_len, data_first, data_num, data_direction; unsigned out, in, i; int head, ret; - - /* Must use ioctl VHOST_SCSI_S...

...host_scsi->dev.mutex */ + struct tcm_vhost_tpg *vs_tpg[VHOST_SCSI_MAX_TARGET]; struct vhost_dev dev; struct vhost_virtqueue vqs[3]; struct vhost_work vs_completion_work; /* cmd completion work item */ struct llist_head vs_completion_list; /* cmd completion queue */ + char vs_vhost_wwpn[TRANSPORT_IQN_LEN]; + int vs_num_target; }; /* Local pointer to allocated TCM configfs fabric module */ @@ -564,13 +569,7 @@ static void vhost_scsi_handle_vq(struct vhost_scsi *vs) u32 exp_data_len, data_first, data_num, data_direction; unsigned out, in, i; int head, ret; - - /* Must use ioctl VHOST_SCSI_S...

This reorgs the files a bit, renaming tcm_vhost to vhost_scsi as that's how userspace refers to it. While at it, cleanup some leftovers from when it was a staging driver. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> Michael S. Tsirkin (3): vhost: src file renames tcm_vhost: header split up vhost_scsi: module rename drivers/vhost/Kconfig | 10 ++-

This reorgs the files a bit, renaming tcm_vhost to vhost_scsi as that's how userspace refers to it. While at it, cleanup some leftovers from when it was a staging driver. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> Michael S. Tsirkin (3): vhost: src file renames tcm_vhost: header split up vhost_scsi: module rename drivers/vhost/Kconfig | 10 ++-

...,14 @@ enum { VHOST_SCSI_VQ_IO = 2, }; +#define VHOST_SCSI_MAX_TARGET 256 + struct vhost_scsi { - struct tcm_vhost_tpg *vs_tpg; /* Protected by vhost_scsi->dev.mutex */ + /* Protected by vhost_scsi->dev.mutex */ + struct tcm_vhost_tpg *vs_tpg[VHOST_SCSI_MAX_TARGET]; + char vs_vhost_wwpn[TRANSPORT_IQN_LEN]; + bool vs_endpoint; + struct vhost_dev dev; struct vhost_virtqueue vqs[3]; @@ -564,10 +570,10 @@ static void vhost_scsi_handle_vq(struct vhost_scsi *vs) u32 exp_data_len, data_first, data_num, data_direction; unsigned out, in, i; int head, ret; + u8 target; /* Must use ioctl VHOST...

...,14 @@ enum { VHOST_SCSI_VQ_IO = 2, }; +#define VHOST_SCSI_MAX_TARGET 256 + struct vhost_scsi { - struct tcm_vhost_tpg *vs_tpg; /* Protected by vhost_scsi->dev.mutex */ + /* Protected by vhost_scsi->dev.mutex */ + struct tcm_vhost_tpg *vs_tpg[VHOST_SCSI_MAX_TARGET]; + char vs_vhost_wwpn[TRANSPORT_IQN_LEN]; + bool vs_endpoint; + struct vhost_dev dev; struct vhost_virtqueue vqs[3]; @@ -564,10 +570,10 @@ static void vhost_scsi_handle_vq(struct vhost_scsi *vs) u32 exp_data_len, data_first, data_num, data_direction; unsigned out, in, i; int head, ret; + u8 target; /* Must use ioctl VHOST...

...The following is -v4 of the in-flight TCM vhost fabric driver for-3.6 code. This series has been rebased into target-pending.git/for-next-merge this evening, and the changelog over the last days from v3 -> v4 has been: *) Rename vhost_vring_target -> vhost_scsi_target (mst + nab) *) Use TRANSPORT_IQN_LEN in vhost_scsi_target->vhost_wwpn[] def (nab) *) Move back to drivers/vhost/, and just use drivers/vhost/Kconfig.tcm (mst) *) Move TCM_VHOST related ioctl defines from include/linux/vhost.h -> drivers/vhost/tcm_vhost.h as requested by MST (nab) *) Move Kbuild.tcm include back from drivers/s...

...The following is -v4 of the in-flight TCM vhost fabric driver for-3.6 code. This series has been rebased into target-pending.git/for-next-merge this evening, and the changelog over the last days from v3 -> v4 has been: *) Rename vhost_vring_target -> vhost_scsi_target (mst + nab) *) Use TRANSPORT_IQN_LEN in vhost_scsi_target->vhost_wwpn[] def (nab) *) Move back to drivers/vhost/, and just use drivers/vhost/Kconfig.tcm (mst) *) Move TCM_VHOST related ioctl defines from include/linux/vhost.h -> drivers/vhost/tcm_vhost.h as requested by MST (nab) *) Move Kbuild.tcm include back from drivers/s...

...via VHOST_SCSI_GET_ABI_VERSION + use Rev 0 as starting point for v3.6-rc code (Stefan + ALiguori + nab) Convert vhost_scsi_handle_vq() to vq_err() (nab + MST) Minor style fixes from checkpatch (nab) Changelog v3 -> v4: Rename vhost_vring_target -> vhost_scsi_target (mst + nab) Use TRANSPORT_IQN_LEN in vhost_scsi_target->vhost_wwpn[] def (nab) Move back to drivers/vhost/, and just use drivers/vhost/Kconfig.tcm (mst) Move TCM_VHOST related ioctl defines from include/linux/vhost.h -> drivers/vhost/tcm_vhost.h as requested by MST (nab) Move Kbuild.tcm include from drivers/staging -&...

...via VHOST_SCSI_GET_ABI_VERSION + use Rev 0 as starting point for v3.6-rc code (Stefan + ALiguori + nab) Convert vhost_scsi_handle_vq() to vq_err() (nab + MST) Minor style fixes from checkpatch (nab) Changelog v3 -> v4: Rename vhost_vring_target -> vhost_scsi_target (mst + nab) Use TRANSPORT_IQN_LEN in vhost_scsi_target->vhost_wwpn[] def (nab) Move back to drivers/vhost/, and just use drivers/vhost/Kconfig.tcm (mst) Move TCM_VHOST related ioctl defines from include/linux/vhost.h -> drivers/vhost/tcm_vhost.h as requested by MST (nab) Move Kbuild.tcm include from drivers/staging -&...

Changes in v6: - Allow device specific fields per vq - Track cmd per vq - Do not track evt - Switch to static array for inflight allocation, completely get rid of the pain to handle inflight allocation failure. Asias He (2): vhost: Allow device specific fields per vq tcm_vhost: Wait for pending requests in vhost_scsi_flush() drivers/vhost/net.c | 60 +++++++++++--------

Changes in v6: - Allow device specific fields per vq - Track cmd per vq - Do not track evt - Switch to static array for inflight allocation, completely get rid of the pain to handle inflight allocation failure. Asias He (2): vhost: Allow device specific fields per vq tcm_vhost: Wait for pending requests in vhost_scsi_flush() drivers/vhost/net.c | 60 +++++++++++--------

Hi, This is the first attempt to add a new qemu nvme backend using in-kernel nvme target. Most code are ported from qemu-nvme and also borrow code from Hannes Reinecke's rts-megasas. It's similar as vhost-scsi, but doesn't use virtio. The advantage is guest can run unmodified NVMe driver. So guest can be any OS that has a NVMe driver. The goal is to get as good performance as

Hi, This is the first attempt to add a new qemu nvme backend using in-kernel nvme target. Most code are ported from qemu-nvme and also borrow code from Hannes Reinecke's rts-megasas. It's similar as vhost-scsi, but doesn't use virtio. The advantage is guest can run unmodified NVMe driver. So guest can be any OS that has a NVMe driver. The goal is to get as good performance as