Date: Tue, 29 Sep 2020 14:59:41 +0000 (UTC) From: David Bright <dab@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r366255 - stable/12/sys/dev/nvme Message-ID: <202009291459.08TExfEs062582@repo.freebsd.org>
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Author: dab Date: Tue Sep 29 14:59:41 2020 New Revision: 366255 URL: https://svnweb.freebsd.org/changeset/base/366255 Log: MFC r365946: Add an ioctl to get an NVMe device's maximum transfer size Sponsored by: Dell EMC Isilon Modified: stable/12/sys/dev/nvme/nvme.h stable/12/sys/dev/nvme/nvme_ctrlr.c Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/dev/nvme/nvme.h ============================================================================== --- stable/12/sys/dev/nvme/nvme.h Tue Sep 29 14:02:42 2020 (r366254) +++ stable/12/sys/dev/nvme/nvme.h Tue Sep 29 14:59:41 2020 (r366255) @@ -41,6 +41,7 @@ #define NVME_PASSTHROUGH_CMD _IOWR('n', 0, struct nvme_pt_command) #define NVME_RESET_CONTROLLER _IO('n', 1) #define NVME_GET_NSID _IOR('n', 2, struct nvme_get_nsid) +#define NVME_GET_MAX_XFER_SIZE _IOR('n', 3, uint64_t) #define NVME_IO_TEST _IOWR('n', 100, struct nvme_io_test) #define NVME_BIO_TEST _IOWR('n', 101, struct nvme_io_test) Modified: stable/12/sys/dev/nvme/nvme_ctrlr.c ============================================================================== --- stable/12/sys/dev/nvme/nvme_ctrlr.c Tue Sep 29 14:02:42 2020 (r366254) +++ stable/12/sys/dev/nvme/nvme_ctrlr.c Tue Sep 29 14:59:41 2020 (r366255) @@ -1309,6 +1309,9 @@ nvme_ctrlr_ioctl(struct cdev *cdev, u_long cmd, caddr_ gnsid->nsid = 0; break; } + case NVME_GET_MAX_XFER_SIZE: + *(uint64_t *)arg = ctrlr->max_xfer_size; + break; default: return (ENOTTY); }
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