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author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-23 16:23:45 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-23 16:23:45 (GMT) |
commit | 1f0918d03ff4b5c94540c71ce889672abdbc2f4a (patch) | |
tree | ecee710444fb3405da55933501e339e10e4ac880 /include | |
parent | 4266c97a3ef4604561a22212eb0eab8a3c338971 (diff) | |
parent | ca60a42c9be41c07ebcc2ec8c43dd1be53f147bf (diff) | |
download | linux-fsl-qoriq-1f0918d03ff4b5c94540c71ce889672abdbc2f4a.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
lguest: don't force VIRTIO_F_NOTIFY_ON_EMPTY
lguest: cleanup for map_switcher()
lguest: use PGDIR_SHIFT for PAE code to allow different PAGE_OFFSET
lguest: use set_pte/set_pmd uniformly for real page table entries
lguest: move panic notifier registration to its expected place.
virtio_blk: add support for cache flush
virtio: add virtio IDs file
virtio: get rid of redundant VIRTIO_ID_9P definition
virtio: make add_buf return capacity remaining
virtio_pci: minor MSI-X cleanups
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/virtio.h | 2 | ||||
-rw-r--r-- | include/linux/virtio_9p.h | 2 | ||||
-rw-r--r-- | include/linux/virtio_balloon.h | 3 | ||||
-rw-r--r-- | include/linux/virtio_blk.h | 18 | ||||
-rw-r--r-- | include/linux/virtio_console.h | 3 | ||||
-rw-r--r-- | include/linux/virtio_ids.h | 17 | ||||
-rw-r--r-- | include/linux/virtio_net.h | 3 | ||||
-rw-r--r-- | include/linux/virtio_rng.h | 3 |
8 files changed, 33 insertions, 18 deletions
diff --git a/include/linux/virtio.h b/include/linux/virtio.h index 4fca4f5..057a2e0 100644 --- a/include/linux/virtio.h +++ b/include/linux/virtio.h @@ -34,7 +34,7 @@ struct virtqueue { * out_num: the number of sg readable by other side * in_num: the number of sg which are writable (after readable ones) * data: the token identifying the buffer. - * Returns 0 or an error. + * Returns remaining capacity of queue (sg segments) or a negative error. * @kick: update after add_buf * vq: the struct virtqueue * After one or more add_buf calls, invoke this to kick the other side. diff --git a/include/linux/virtio_9p.h b/include/linux/virtio_9p.h index b3c4a60..ea7226a 100644 --- a/include/linux/virtio_9p.h +++ b/include/linux/virtio_9p.h @@ -4,8 +4,6 @@ * compatible drivers/servers. */ #include <linux/virtio_config.h> -/* The ID for virtio console */ -#define VIRTIO_ID_9P 9 /* Maximum number of virtio channels per partition (1 for now) */ #define MAX_9P_CHAN 1 diff --git a/include/linux/virtio_balloon.h b/include/linux/virtio_balloon.h index 8726ff7..09d7300 100644 --- a/include/linux/virtio_balloon.h +++ b/include/linux/virtio_balloon.h @@ -4,9 +4,6 @@ * compatible drivers/servers. */ #include <linux/virtio_config.h> -/* The ID for virtio_balloon */ -#define VIRTIO_ID_BALLOON 5 - /* The feature bitmap for virtio balloon */ #define VIRTIO_BALLOON_F_MUST_TELL_HOST 0 /* Tell before reclaiming pages */ diff --git a/include/linux/virtio_blk.h b/include/linux/virtio_blk.h index 8dab9f2..15cb666 100644 --- a/include/linux/virtio_blk.h +++ b/include/linux/virtio_blk.h @@ -5,9 +5,6 @@ #include <linux/types.h> #include <linux/virtio_config.h> -/* The ID for virtio_block */ -#define VIRTIO_ID_BLOCK 2 - /* Feature bits */ #define VIRTIO_BLK_F_BARRIER 0 /* Does host support barriers? */ #define VIRTIO_BLK_F_SIZE_MAX 1 /* Indicates maximum segment size */ @@ -17,6 +14,7 @@ #define VIRTIO_BLK_F_BLK_SIZE 6 /* Block size of disk is available*/ #define VIRTIO_BLK_F_SCSI 7 /* Supports scsi command passthru */ #define VIRTIO_BLK_F_IDENTIFY 8 /* ATA IDENTIFY supported */ +#define VIRTIO_BLK_F_FLUSH 9 /* Cache flush command support */ #define VIRTIO_BLK_ID_BYTES (sizeof(__u16[256])) /* IDENTIFY DATA */ @@ -38,6 +36,17 @@ struct virtio_blk_config { __u8 identify[VIRTIO_BLK_ID_BYTES]; } __attribute__((packed)); +/* + * Command types + * + * Usage is a bit tricky as some bits are used as flags and some are not. + * + * Rules: + * VIRTIO_BLK_T_OUT may be combined with VIRTIO_BLK_T_SCSI_CMD or + * VIRTIO_BLK_T_BARRIER. VIRTIO_BLK_T_FLUSH is a command of its own + * and may not be combined with any of the other flags. + */ + /* These two define direction. */ #define VIRTIO_BLK_T_IN 0 #define VIRTIO_BLK_T_OUT 1 @@ -45,6 +54,9 @@ struct virtio_blk_config { /* This bit says it's a scsi command, not an actual read or write. */ #define VIRTIO_BLK_T_SCSI_CMD 2 +/* Cache flush command */ +#define VIRTIO_BLK_T_FLUSH 4 + /* Barrier before this op. */ #define VIRTIO_BLK_T_BARRIER 0x80000000 diff --git a/include/linux/virtio_console.h b/include/linux/virtio_console.h index dc16111..b5f5198 100644 --- a/include/linux/virtio_console.h +++ b/include/linux/virtio_console.h @@ -5,9 +5,6 @@ /* This header, excluding the #ifdef __KERNEL__ part, is BSD licensed so * anyone can use the definitions to implement compatible drivers/servers. */ -/* The ID for virtio console */ -#define VIRTIO_ID_CONSOLE 3 - /* Feature bits */ #define VIRTIO_CONSOLE_F_SIZE 0 /* Does host provide console size? */ diff --git a/include/linux/virtio_ids.h b/include/linux/virtio_ids.h new file mode 100644 index 0000000..06660c0 --- /dev/null +++ b/include/linux/virtio_ids.h @@ -0,0 +1,17 @@ +#ifndef _LINUX_VIRTIO_IDS_H +#define _LINUX_VIRTIO_IDS_H +/* + * Virtio IDs + * + * This header is BSD licensed so anyone can use the definitions to implement + * compatible drivers/servers. + */ + +#define VIRTIO_ID_NET 1 /* virtio net */ +#define VIRTIO_ID_BLOCK 2 /* virtio block */ +#define VIRTIO_ID_CONSOLE 3 /* virtio console */ +#define VIRTIO_ID_RNG 4 /* virtio ring */ +#define VIRTIO_ID_BALLOON 5 /* virtio balloon */ +#define VIRTIO_ID_9P 9 /* 9p virtio console */ + +#endif /* _LINUX_VIRTIO_IDS_H */ diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h index d8dd539..1f41734 100644 --- a/include/linux/virtio_net.h +++ b/include/linux/virtio_net.h @@ -6,9 +6,6 @@ #include <linux/virtio_config.h> #include <linux/if_ether.h> -/* The ID for virtio_net */ -#define VIRTIO_ID_NET 1 - /* The feature bitmap for virtio net */ #define VIRTIO_NET_F_CSUM 0 /* Host handles pkts w/ partial csum */ #define VIRTIO_NET_F_GUEST_CSUM 1 /* Guest handles pkts w/ partial csum */ diff --git a/include/linux/virtio_rng.h b/include/linux/virtio_rng.h index 1a85dab..48121c3 100644 --- a/include/linux/virtio_rng.h +++ b/include/linux/virtio_rng.h @@ -4,7 +4,4 @@ * compatible drivers/servers. */ #include <linux/virtio_config.h> -/* The ID for virtio_rng */ -#define VIRTIO_ID_RNG 4 - #endif /* _LINUX_VIRTIO_RNG_H */ |