search for: blkif_request

...uct page **pages; }; #define BLKBACK_INVALID_HANDLE (~0) @@ -123,28 +133,9 @@ static inline unsigned long vaddr(struct pending_req *req, int seg) static int do_block_io_op(struct xen_blkif *blkif); static int dispatch_rw_block_io(struct xen_blkif *blkif, - struct blkif_request *req, struct pending_req *pending_req); static void make_response(struct xen_blkif *blkif, u64 id, - unsigned short op, int st); - -/* - * Retrieve from the ''pending_reqs'' a free pending_req structure to be used. - */ -static struct pending_req...

...les changed, 12 insertions(+), 8 deletions(-) diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index 663d42d..a059616 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -503,7 +503,7 @@ static int xen_blkbk_map(struct blkif_request *req, * We are using persistent grants and * the grant is already mapped */ - new_map = 0; + new_map = false; } else if (use_persistent_gnts && blkif->persistent_gnt_c < max_mapped_grant_pages(blkif->blk_protocol)) { @@ -511,8 +511,8 @@ static in...

...D_HANDLE; @@ -486,6 +492,12 @@ void *get_back_ring(struct xen_blkif *blkif) return (void *)&blkif->blk_rings; } +void *get_back_ring_v2(struct xen_blkif *blkif) +{ + return (void *)&blkif->blk_rings_v2; +} + + void copy_blkif_req(struct xen_blkif *blkif, RING_IDX rc) { struct blkif_request *req = (struct blkif_request *)blkif->req; @@ -506,12 +518,48 @@ void copy_blkif_req(struct xen_blkif *blkif, RING_IDX rc) } } +void copy_blkif_req_v2(struct xen_blkif *blkif, RING_IDX rc) +{ + struct blkif_request_header *req = (struct blkif_request_header *)blkif->req; + union blkif_...

...6 +----- 1 files changed, 1 insertions(+), 5 deletions(-) diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 5ba6b87..4d81fcc 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -74,7 +74,6 @@ struct grant { struct blk_shadow { struct blkif_request req; struct request *request; - unsigned long frame[BLKIF_MAX_SEGMENTS_PER_REQUEST]; struct grant *grants_used[BLKIF_MAX_SEGMENTS_PER_REQUEST]; }; @@ -356,7 +355,6 @@ static int blkif_ioctl(struct block_device *bdev, fmode_t mode, static int blkif_queue_request(struct request *req) { str...

Dear list, This is the V4 of the trim support for xen-blkfront/blkback, Now we move BLKIF_OP_TRIM to BLKIF_OP_DISCARD, and dropped all "trim" stuffs in the patches, and use "discard" instead. Also we updated the helpers of blkif_x86_{32|64}_request or we will meet problems using a non-native protocol. And this patch has been tested with both SSD and raw file, with SSD we will

...gt;page; + } + + ret = gnttab_unmap_refs(unmap, pages, segs_to_unmap, false); + BUG_ON(ret); + + blkif->pers_gnt_c -= segs_to_unmap; + + } + if (log_stats) print_stats(blkif); @@ -343,13 +391,28 @@ static void xen_blkbk_unmap(struct pending_req *req) static int xen_blkbk_map(struct blkif_request *req, struct pending_req *pending_req, - struct seg_buf seg[]) + struct seg_buf seg[], + struct page *pages[]) { struct gnttab_map_grant_ref map[BLKIF_MAX_SEGMENTS_PER_REQUEST]; + struct pers_gnt *new_pers_gnts[BLKIF_MAX_SEGMENTS_PER_REQUEST]; + struct pers_gnt *pers_gnts[BLKIF_MAX...

...les changed, 10 insertions(+), 0 deletions(-) diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index 0088bf6..0453695 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -386,6 +386,7 @@ static int xen_blkbk_map(struct blkif_request *req, * so that when we access vaddr(pending_req,i) it has the contents of * the page from the other domain. */ + arch_enter_lazy_mmu_mode(); for (i = 0; i < nseg; i++) { if (unlikely(map[i].status != 0)) { pr_debug(DRV_PFX "invalid buffer -- could not remap it\n"); @...

In blkback driver, after I/O requests are submitted to Dom-0 block I/O subsystem, blkback goes to ''sleep'' effectively without letting blkfront know about it (req_event isn''t set appropriately). Hence blkfront doesn''t notify blkback when it submits a new I/O thus delaying the ''dispatch'' of the new I/O to Dom-0 block I/O subsystem. The new I/O is

I accidentally realized today that any domU''s using the paravirt disk driver potentially suffer from poor performance when they get handed in a physical volume and partitioning is done inside the guest. The physical volume passed in has to be one that has the compat 512 logical sector size but hints its real sector size (eg. 4096) as physical sector size. In dom0 handling is correct and

This patch series implements the Linux Xen guest in terms of the paravirt-ops interface. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen console * virtual block

This patch series implements the Linux Xen guest in terms of the paravirt-ops interface. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen console * virtual block

This patch series implements the Linux Xen guest in terms of the paravirt-ops interface. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen console * virtual block

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen hvc console (console=hvc0) *

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen hvc console (console=hvc0) *

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen hvc console (console=hvc0) *

Hi Andi, This patch series implements the Linux Xen guest in terms of the paravirt-ops interface. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen console * virtual

Hi Andi, This patch series implements the Linux Xen guest in terms of the paravirt-ops interface. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen console * virtual

Hi Andi, This patch series implements the Linux Xen guest in terms of the paravirt-ops interface. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen console * virtual

Hi Andi, This series of patches implements the Xen paravirt-ops interface. It applies to 2.6.21-rc7 + your patches + the last batch of pv_ops patches I posted. This patch generally restricts itself to Xen-specific parts of the tree, though it does make a few small changes elsewhere. These patches include: - some helper routines for allocating address space and walking pagetables - Xen

Hi Andi, This series of patches implements the Xen paravirt-ops interface. It applies to 2.6.21-rc7 + your patches + the last batch of pv_ops patches I posted. This patch generally restricts itself to Xen-specific parts of the tree, though it does make a few small changes elsewhere. These patches include: - some helper routines for allocating address space and walking pagetables - Xen