search for: mapsiz

...#include <linux/mm_types.h> +#include <linux/lguest_bus.h> +#include <asm/io.h> + +#define SHARED_SIZE PAGE_SIZE +#define MAX_LANS 4 +#define NUM_SKBS 8 + +struct lguestnet_info +{ + /* The shared page(s). */ + struct lguest_net *peer; + unsigned long peer_phys; + unsigned long mapsize; + + /* My peerid. */ + unsigned int me; + + /* Receive queue. */ + struct sk_buff *skb[NUM_SKBS]; + struct lguest_dma dma[NUM_SKBS]; +}; + +/* How many bytes left in this page. */ +static unsigned int rest_of_page(void *data) +{ + return PAGE_SIZE - ((unsigned long)data % PAGE_SIZE); +} + +/* Sim...

...#include <linux/mm_types.h> +#include <linux/lguest_bus.h> +#include <asm/io.h> + +#define SHARED_SIZE PAGE_SIZE +#define MAX_LANS 4 +#define NUM_SKBS 8 + +struct lguestnet_info +{ + /* The shared page(s). */ + struct lguest_net *peer; + unsigned long peer_phys; + unsigned long mapsize; + + /* My peerid. */ + unsigned int me; + + /* Receive queue. */ + struct sk_buff *skb[NUM_SKBS]; + struct lguest_dma dma[NUM_SKBS]; +}; + +/* How many bytes left in this page. */ +static unsigned int rest_of_page(void *data) +{ + return PAGE_SIZE - ((unsigned long)data % PAGE_SIZE); +} + +/* Sim...

...tio/vringh_test.c index 293653463303..8ee2c9a6ad46 100644 --- a/tools/virtio/vringh_test.c +++ b/tools/virtio/vringh_test.c @@ -151,7 +151,7 @@ static int parallel_test(u64 features, err(1, "Opening /tmp/vringh_test-file"); /* Extra room at the end for some data, and indirects */ - mapsize = vring_size(RINGSIZE, ALIGN) + mapsize = vring_legacy_size(RINGSIZE, ALIGN) + RINGSIZE * 2 * sizeof(int) + RINGSIZE * 6 * sizeof(struct vring_desc); mapsize = (mapsize + getpagesize() - 1) & ~(getpagesize() - 1); @@ -185,7 +185,7 @@ static int parallel_test(u64 features, close(to_g...

...tio/vringh_test.c index 293653463303..8ee2c9a6ad46 100644 --- a/tools/virtio/vringh_test.c +++ b/tools/virtio/vringh_test.c @@ -151,7 +151,7 @@ static int parallel_test(u64 features, err(1, "Opening /tmp/vringh_test-file"); /* Extra room at the end for some data, and indirects */ - mapsize = vring_size(RINGSIZE, ALIGN) + mapsize = vring_legacy_size(RINGSIZE, ALIGN) + RINGSIZE * 2 * sizeof(int) + RINGSIZE * 6 * sizeof(struct vring_desc); mapsize = (mapsize + getpagesize() - 1) & ~(getpagesize() - 1); @@ -185,7 +185,7 @@ static int parallel_test(u64 features, close(to_g...

...tio/vringh_test.c index 293653463303..8ee2c9a6ad46 100644 --- a/tools/virtio/vringh_test.c +++ b/tools/virtio/vringh_test.c @@ -151,7 +151,7 @@ static int parallel_test(u64 features, err(1, "Opening /tmp/vringh_test-file"); /* Extra room at the end for some data, and indirects */ - mapsize = vring_size(RINGSIZE, ALIGN) + mapsize = vring_legacy_size(RINGSIZE, ALIGN) + RINGSIZE * 2 * sizeof(int) + RINGSIZE * 6 * sizeof(struct vring_desc); mapsize = (mapsize + getpagesize() - 1) & ~(getpagesize() - 1); @@ -185,7 +185,7 @@ static int parallel_test(u64 features, close(to_g...

...tio/vringh_test.c index 293653463303..8ee2c9a6ad46 100644 --- a/tools/virtio/vringh_test.c +++ b/tools/virtio/vringh_test.c @@ -151,7 +151,7 @@ static int parallel_test(u64 features, err(1, "Opening /tmp/vringh_test-file"); /* Extra room at the end for some data, and indirects */ - mapsize = vring_size(RINGSIZE, ALIGN) + mapsize = vring_legacy_size(RINGSIZE, ALIGN) + RINGSIZE * 2 * sizeof(int) + RINGSIZE * 6 * sizeof(struct vring_desc); mapsize = (mapsize + getpagesize() - 1) & ~(getpagesize() - 1); @@ -185,7 +185,7 @@ static int parallel_test(u64 features, close(to_g...

...tio/vringh_test.c index 293653463303..8ee2c9a6ad46 100644 --- a/tools/virtio/vringh_test.c +++ b/tools/virtio/vringh_test.c @@ -151,7 +151,7 @@ static int parallel_test(u64 features, err(1, "Opening /tmp/vringh_test-file"); /* Extra room at the end for some data, and indirects */ - mapsize = vring_size(RINGSIZE, ALIGN) + mapsize = vring_legacy_size(RINGSIZE, ALIGN) + RINGSIZE * 2 * sizeof(int) + RINGSIZE * 6 * sizeof(struct vring_desc); mapsize = (mapsize + getpagesize() - 1) & ~(getpagesize() - 1); @@ -185,7 +185,7 @@ static int parallel_test(u64 features, close(to_g...

...tio/vringh_test.c index 293653463303..8ee2c9a6ad46 100644 --- a/tools/virtio/vringh_test.c +++ b/tools/virtio/vringh_test.c @@ -151,7 +151,7 @@ static int parallel_test(u64 features, err(1, "Opening /tmp/vringh_test-file"); /* Extra room at the end for some data, and indirects */ - mapsize = vring_size(RINGSIZE, ALIGN) + mapsize = vring_legacy_size(RINGSIZE, ALIGN) + RINGSIZE * 2 * sizeof(int) + RINGSIZE * 6 * sizeof(struct vring_desc); mapsize = (mapsize + getpagesize() - 1) & ~(getpagesize() - 1); @@ -185,7 +185,7 @@ static int parallel_test(u64 features, close(to_g...

...tio/vringh_test.c index 293653463303..d26dc6530bd4 100644 --- a/tools/virtio/vringh_test.c +++ b/tools/virtio/vringh_test.c @@ -151,7 +151,7 @@ static int parallel_test(u64 features, err(1, "Opening /tmp/vringh_test-file"); /* Extra room at the end for some data, and indirects */ - mapsize = vring_size(RINGSIZE, ALIGN) + mapsize = vring_legacy_size(RINGSIZE, ALIGN) + RINGSIZE * 2 * sizeof(int) + RINGSIZE * 6 * sizeof(struct vring_desc); mapsize = (mapsize + getpagesize() - 1) & ~(getpagesize() - 1); @@ -185,7 +185,7 @@ static int parallel_test(u64 features, close(to_g...

...tio/vringh_test.c index 293653463303..d26dc6530bd4 100644 --- a/tools/virtio/vringh_test.c +++ b/tools/virtio/vringh_test.c @@ -151,7 +151,7 @@ static int parallel_test(u64 features, err(1, "Opening /tmp/vringh_test-file"); /* Extra room at the end for some data, and indirects */ - mapsize = vring_size(RINGSIZE, ALIGN) + mapsize = vring_legacy_size(RINGSIZE, ALIGN) + RINGSIZE * 2 * sizeof(int) + RINGSIZE * 6 * sizeof(struct vring_desc); mapsize = (mapsize + getpagesize() - 1) & ~(getpagesize() - 1); @@ -185,7 +185,7 @@ static int parallel_test(u64 features, close(to_g...

...tio/vringh_test.c index 293653463303..d26dc6530bd4 100644 --- a/tools/virtio/vringh_test.c +++ b/tools/virtio/vringh_test.c @@ -151,7 +151,7 @@ static int parallel_test(u64 features, err(1, "Opening /tmp/vringh_test-file"); /* Extra room at the end for some data, and indirects */ - mapsize = vring_size(RINGSIZE, ALIGN) + mapsize = vring_legacy_size(RINGSIZE, ALIGN) + RINGSIZE * 2 * sizeof(int) + RINGSIZE * 6 * sizeof(struct vring_desc); mapsize = (mapsize + getpagesize() - 1) & ~(getpagesize() - 1); @@ -185,7 +185,7 @@ static int parallel_test(u64 features, close(to_g...

This introduces vringh, which are generic accessors for virtio rings (host side). There's a host-side implementation in vhost, but it assumes that the rings are in userspace, and is tied to the vhost implementation. I have patches to adapt it to use vringh, but I'm pushing this in the next merge window for Sjur, who has CAIF patches which need it. This also includes a test program in

This introduces vringh, which are generic accessors for virtio rings (host side). There's a host-side implementation in vhost, but it assumes that the rings are in userspace, and is tied to the vhost implementation. I have patches to adapt it to use vringh, but I'm pushing this in the next merge window for Sjur, who has CAIF patches which need it. This also includes a test program in

Adopt the map ordering to match the other architectures and the generic code. Also make the maximum entries limited and not dependend on the number of CPUs. With the original implementation did the following calculation: nr_slots = mapsize >> PAGE_SHIFT; The results in either 512 or 1024 total slots depending on configuration. The total slots have to be divided by the number of CPUs to get the number of slots per CPU (former KM_TYPE_NR). ARC supports up to 4k CPUs, so this just falls apart in random ways depending on the numb...

Getting use of virtio rings correct is tricky, and a recent patch saw an implementation of in-kernel rings (as separate from userspace). This patch attempts to abstract the business of dealing with the virtio ring layout from the access (userspace or direct); to do this, we use function pointers, which gcc inlines correctly. Signed-off-by: Rusty Russell <rusty at rustcorp.com.au> ---

Getting use of virtio rings correct is tricky, and a recent patch saw an implementation of in-kernel rings (as separate from userspace). This patch attempts to abstract the business of dealing with the virtio ring layout from the access (userspace or direct); to do this, we use function pointers, which gcc inlines correctly. Signed-off-by: Rusty Russell <rusty at rustcorp.com.au> ---

...15-Mar-2018 12:29:13.563 adjusted limit on open files from 4096 to 1048576 15-Mar-2018 12:29:13.563 found 1 CPU, using 1 worker thread 15-Mar-2018 12:29:13.563 using 1 UDP listener per interface 15-Mar-2018 12:29:13.563 using up to 4096 sockets 15-Mar-2018 12:29:13.565 ./config.c: option 'lmdb-mapsize' was not enabled at compile time (ignored) 15-Mar-2018 12:29:13.565 loading configuration from '/etc/bind/named.conf' 15-Mar-2018 12:29:13.566 reading built-in trusted keys from file '/etc/bind/bind.keys' 15-Mar-2018 12:29:13.566 GeoIP Country (IPv4) (type 1) DB not available 1...

...d_rom(struct pci_dev *pdev) { struct sis_video_info *ivideo = pci_get_drvdata(pdev); void __iomem *rom_base; @@ -4149,7 +4147,7 @@ sisfb_find_rom(struct pci_dev *pdev) return myrombase; } -static void __devinit +static void sisfb_post_map_vram(struct sis_video_info *ivideo, unsigned int *mapsize, unsigned int min) { @@ -4176,7 +4174,7 @@ sisfb_post_map_vram(struct sis_video_info *ivideo, unsigned int *mapsize, } #ifdef CONFIG_FB_SIS_300 -static int __devinit +static int sisfb_post_300_buswidth(struct sis_video_info *ivideo) { void __iomem *FBAddress = ivideo->video_vbase;...

...d_rom(struct pci_dev *pdev) { struct sis_video_info *ivideo = pci_get_drvdata(pdev); void __iomem *rom_base; @@ -4149,7 +4147,7 @@ sisfb_find_rom(struct pci_dev *pdev) return myrombase; } -static void __devinit +static void sisfb_post_map_vram(struct sis_video_info *ivideo, unsigned int *mapsize, unsigned int min) { @@ -4176,7 +4174,7 @@ sisfb_post_map_vram(struct sis_video_info *ivideo, unsigned int *mapsize, } #ifdef CONFIG_FB_SIS_300 -static int __devinit +static int sisfb_post_300_buswidth(struct sis_video_info *ivideo) { void __iomem *FBAddress = ivideo->video_vbase;...

...d_rom(struct pci_dev *pdev) { struct sis_video_info *ivideo = pci_get_drvdata(pdev); void __iomem *rom_base; @@ -4149,7 +4147,7 @@ sisfb_find_rom(struct pci_dev *pdev) return myrombase; } -static void __devinit +static void sisfb_post_map_vram(struct sis_video_info *ivideo, unsigned int *mapsize, unsigned int min) { @@ -4176,7 +4174,7 @@ sisfb_post_map_vram(struct sis_video_info *ivideo, unsigned int *mapsize, } #ifdef CONFIG_FB_SIS_300 -static int __devinit +static int sisfb_post_300_buswidth(struct sis_video_info *ivideo) { void __iomem *FBAddress = ivideo->video_vbase;...