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Let the xhci_hw_root structure span exactly XHCI_PAGE_SIZE bytes by increasing

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the number of completion event TRBs. This avoids wasting memory.

MFC after:	1 week
Sponsored by:	NVIDIA Networking
This commit is contained in:
Hans Petter Selasky 2021-07-10 14:14:11 +02:00
parent d8514fa6f1
commit e036ee6ce2
1 changed files with 3 additions and 1 deletions
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4
sys/dev/usb/controller/xhci.h
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@ -33,7 +33,7 @@
#define XHCI_MAX_DEVICES MIN(USB_MAX_DEVICES, 128)
#define XHCI_MAX_ENDPOINTS 32 /* hardcoded - do not change */
#define XHCI_MAX_SCRATCHPADS 256 /* theoretical max is 1023 */
#define XHCI_MAX_EVENTS (16 * 13)
#define XHCI_MAX_EVENTS 232
#define XHCI_MAX_COMMANDS (16 * 1)
#define XHCI_MAX_RSEG 1
#define XHCI_MAX_TRANSFERS 4
@ -383,6 +383,8 @@ struct xhci_hw_root {
struct xhci_trb hwr_commands[XHCI_MAX_COMMANDS];
};
CTASSERT(sizeof(struct xhci_hw_root) == XHCI_PAGE_SIZE);
struct xhci_endpoint_ext {
struct xhci_trb *trb;
struct usb_xfer *xfer[XHCI_MAX_TRANSFERS * XHCI_MAX_STREAMS];