Peter Grehan 310dacd09b Various VirtIO improvements ... PCI: - Properly handle interrupt fallback from MSIX to MSI to legacy. The host may not have sufficient resources to support MSIX, so we must be able to fallback to legacy interrupts. - Add interface to get the (sub) vendor and device IDs. - Rename flags to VTPCI_FLAG_* like other VirtIO drivers. Block: - No longer allocate vtblk_requests from separate UMA zone. malloc(9) from M_DEVBUF is sufficient. Assert segment counts at allocation. - More verbose error and debug messages. Network: - Remove stray write once variable. Virtqueue: - Shuffle code around in preparation of converting the mb()s to the appropriate atomic(9) operations. - Only walk the descriptor chain when freeing if INVARIANTS is defined since the result is only KASSERT()ed. Submitted by: Bryan Venteicher (bryanv@daemoninthecloset.org)		2012-07-11 02:57:19 +00:00
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virtio_blk.c	Various VirtIO improvements	2012-07-11 02:57:19 +00:00
virtio_blk.h	Do not include <sys/types.h> in the local headers. The .c files including	2012-07-03 15:15:41 +00:00