search for: pending_idx

...back.c Wed Feb 04 12:26:00 2009 +0000 +++ b/drivers/xen/netback/netback.c Thu Feb 05 15:11:35 2009 +0000 @@ -914,7 +914,11 @@ inline static void net_tx_action_dealloc if (time_after(inuse->alloc_time + HZ / 2, jiffies)) break; - switch (copy_pending_req(inuse - pending_inuse)) { + pending_idx = inuse - pending_inuse; + + pending_tx_info[pending_idx].netif->nr_copied_skbs++; + + switch (copy_pending_req(pending_idx)) { case 0: list_move_tail(&inuse->list, &list); continue; _______________________________________________ Xen-devel mailing list Xen-devel@li...

...MMAP_VADDR(info->user_vstart, u_idx, 0), req->nr_pages << PAGE_SHIFT, NULL); + } + + if (locked) + up_write(&mm->mmap_sem); } /****************************************************************** @@ -1356,6 +1373,7 @@ static void dispatch_rw_block_io(blkif_t int pending_idx = RTN_PEND_IDX(pending_req,pending_req->mem_idx); int usr_idx; uint16_t mmap_idx = pending_req->mem_idx; + struct mm_struct *mm; if (blkif->dev_num < 0 || blkif->dev_num > MAX_TAP_DEV) goto fail_response; @@ -1416,6 +1434,9 @@ static void dispatch_rw_block_io(blkif_t...

...g code which calls fast_flush_area and breaks out of the loop early if one of the handles returned from HYPERVISOR_grant_table_op is negative: for (i = 0; i < nseg; i++) { if (unlikely(map[i].handle < 0)) { DPRINTK("invalid buffer -- could not remap it\n"); fast_flush_area(pending_idx, nseg); goto bad_descriptor; } phys_to_machine_mapping[__pa(MMAP_VADDR( pending_idx, i)) >> PAGE_SHIFT] = FOREIGN_FRAME(map[i].dev_bus_addr >> PAGE_SHIFT); pending_handle(pending_idx, i) = map[i].handle; } The implementation of fast_flush_area uses pending_handle and...

Hi Keir: These two patches remove the need for netloop by performing the copying in netback and only if it is necessary. The rationale is that most packets will be processed without delay allowing them to be freed without copying at all. So instead of copying every packet destined to dom0 we''ll only copy those that linger longer than a specified amount of time (currently 0.5s). As it

Patrick, there following patches fix xenpaging for me. Granttable handling is incomplete. If a page is gone, a GNTST_eagain should be returned to the caller to inidcate the hypercall has to be retried after a while, until the page is available again. Please review. Olaf _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com

...t;net_schedule_list)) { struct xenvif *vif; struct xen_netif_tx_request txreq; - struct xen_netif_tx_request txfrags[max_skb_slots]; + struct xen_netif_tx_request txfrags[XEN_NETIF_NR_SLOTS_MIN]; struct page *page; struct xen_netif_extra_info extras[XEN_NETIF_EXTRA_TYPE_MAX-1]; u16 pending_idx; -- 1.7.10.4

On Mon, 17 Jul 2017, Johnny Hughes wrote: > Are the testing kernels (kernel-4.9.37-29.el7 and kernel-4.9.37-29.el6, > with the one config file change) working for everyone: > > (turn off: CONFIG_IO_STRICT_DEVMEM) Hello. Maybe it's not the most appropriate thread or time, but I have been signalling it before: 4.9.* kernels do not work well for me any more (and for other people

This is a cherry pick of two patches that add support for guest paged out frames in the XCP 2.6.32 dom0 patch queue. First patch propagates the ENOENT returned by the hypervisor in the case of a paged out page, all the way up the call chain to the MMAPBATCH_V2 ioctl. The ioctl is mainly used to harvest those return values and retry. The second patch adds retry loops to all backend grant

...vers/net/xen-netback/common.h +++ b/drivers/net/xen-netback/common.h @@ -87,9 +87,13 @@ struct pending_tx_info { struct xenvif_rx_meta { int id; int size; + int gso_type; int gso_size; }; +#define GSO_BIT(type) \ + (1 << XEN_NETIF_GSO_TYPE_ ## type) + /* Discriminate from any valid pending_idx value. */ #define INVALID_PENDING_IDX 0xFFFF @@ -150,9 +154,10 @@ struct xenvif { u8 fe_dev_addr[6]; /* Frontend feature information. */ + int gso_mask; + int gso_prefix_mask; + u8 can_sg:1; - u8 gso:1; - u8 gso_prefix:1; u8 ip_csum:1; u8 ipv6_csum:1; diff --git a/dri...

...o the dispatch queue, %false otherwise. */ static bool blk_flush_complete_seq(struct request *rq, unsigned int seq, int error) { - struct request_queue *q = rq->q; + struct request_queue *q = rq->queue_ctx->queue; struct list_head *pending = &q->flush_queue[q->flush_pending_idx]; bool queued = false; BUG_ON(rq->flush.seq & seq); rq->flush.seq |= seq; if (likely(!error)) seq = blk_flush_cur_seq(rq); else @@ -187,28 +187,28 @@ static bool blk_flush_complete_seq(struct request *rq, unsigned int seq, default: BUG(); } return blk_kick_flus...

...o the dispatch queue, %false otherwise. */ static bool blk_flush_complete_seq(struct request *rq, unsigned int seq, int error) { - struct request_queue *q = rq->q; + struct request_queue *q = rq->queue_ctx->queue; struct list_head *pending = &q->flush_queue[q->flush_pending_idx]; bool queued = false; BUG_ON(rq->flush.seq & seq); rq->flush.seq |= seq; if (likely(!error)) seq = blk_flush_cur_seq(rq); else @@ -187,28 +187,28 @@ static bool blk_flush_complete_seq(struct request *rq, unsigned int seq, default: BUG(); } return blk_kick_flus...