Date: Thu, 10 Mar 2022 08:35:36 GMT From: Hans Petter Selasky <hselasky@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: afeeccfbed27 - stable/13 - Let the xhci_hw_root structure span exactly XHCI_PAGE_SIZE bytes by increasing the number of completion event TRBs. This avoids wasting memory. Message-ID: <202203100835.22A8ZaBq003369@gitrepo.freebsd.org>
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The branch stable/13 has been updated by hselasky: URL: https://cgit.FreeBSD.org/src/commit/?id=afeeccfbed271f4f6ba7b300d01eea34281395fd commit afeeccfbed271f4f6ba7b300d01eea34281395fd Author: Hans Petter Selasky <hselasky@FreeBSD.org> AuthorDate: 2021-07-10 12:14:11 +0000 Commit: Hans Petter Selasky <hselasky@FreeBSD.org> CommitDate: 2022-03-10 08:18:04 +0000 Let the xhci_hw_root structure span exactly XHCI_PAGE_SIZE bytes by increasing the number of completion event TRBs. This avoids wasting memory. Sponsored by: NVIDIA Networking (cherry picked from commit e036ee6ce2e4d6fe0564f8bb3aa99a2f61d48fc6) --- sys/dev/usb/controller/xhci.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/sys/dev/usb/controller/xhci.h b/sys/dev/usb/controller/xhci.h index c0427e0cf11f..e8841a05b134 100644 --- a/sys/dev/usb/controller/xhci.h +++ b/sys/dev/usb/controller/xhci.h @@ -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];
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