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    SubjectRe: [patch 2.5] pci_{save,restore}_extended_state
    On Fri, Jan 24, 2003 at 09:24:03PM +0300, Ivan Kokshaysky wrote:
    > pci.h: added missing SIZEOFs for each capability as per PCI specs.
    > I'm not 100% sure about PCI_CHSWP_SIZEOF and PCI_X_SIZEOF - somebody
    > with respective specs in hands (Matthew?) ought to verify this...

    PCI-X is 8 bytes -- ID, Next capability, 2-byte `Command', 4-byte `Status'

    Except PCI-X bridges, which are 16-bytes long. And I didn't write down the
    definition for those.

    Hotswap uses only 3 bytes, but the 4th byte is `reserved' so better save
    4 bytes rather than 3.

    > #define PCI_CHSWP_PI 0x30 /* Programming Interface */
    > #define PCI_CHSWP_EXT 0x40 /* ENUM# status - extraction */
    > #define PCI_CHSWP_INS 0x80 /* ENUM# status - insertion */
    > +#define PCI_CHSWP_SIZEOF 4
    >
    > /* PCI-X registers */
    >
    > @@ -309,6 +314,7 @@
    > #define PCI_X_STATUS_MAX_SPLIT 0x0380 /* Design Max Outstanding Split Trans */
    > #define PCI_X_STATUS_MAX_CUM 0x1c00 /* Designed Max Cumulative Read Size */
    > #define PCI_X_STATUS_SPL_ERR 0x2000 /* Rcvd Split Completion Error Msg */
    > +#define PCI_X_SIZEOF 9
    >
    > /* Include the ID list */
    >

    --
    "It's not Hollywood. War is real, war is primarily not about defeat or
    victory, it is about death. I've seen thousands and thousands of dead bodies.
    Do you think I want to have an academic debate on this subject?" -- Robert Fisk
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