GRUB_CMDLINE_LINUX_DEFAULT="console=ttyS0 net.ifnames=0 dis_ucode_ldr earlyprintk=ttyS0 multipath=off rootdelay=300 scsi_mod.use_blk_mq=1 USE_BY_UUID_DEVICE_NAMES=1 nvme_core.io_timeout=240" --- OK GRUB contains timeouts. --- --- OK fstab file doesn't contain device names -...
In absence of any additional coding, enabling SCSI-MQ in the midlayer using scsi_mod.use_blk_mq=1 will cause the midlayer to use BLK-MQ queueing, but does not require any driver changes. If, however, the driver wishes to support multiple hardware queues, driver changes are necessary. The ...
GRUB_CMDLINE_LINUX_DEFAULT="console=ttyS0 net.ifnames=0 dis_ucode_ldr earlyprintk=ttyS0 multipath=off rootdelay=300 scsi_mod.use_blk_mq=1 USE_BY_UUID_DEVICE_NAMES=1 nvme_core.io_timeout=240" --- OK GRUB contains timeouts. --- --- OK fstab file doe...
struct scsi_cmnd *cmd = blk_mq_rq_to_pdu(req); struct scsi_sense_hdr sshdr;dev_err(&hpb->sdev_ufs_lu->sdev_dev, "block status %d", error); scsi_command_normalize_sense(cmd, &sshdr); dev_err(&hpb->sdev_ufs_lu->sdev_dev, ...
/* * Some low level driver could use device->type */ sdev->type = -1; /* * Assume that the device will have handshaking problems, * and then fix this field later if it turns out it * doesn't */ sdev->borken = 1; sdev->sg_reserved_size = INT_MAX; q = blk_mq_init_que...
Elixir Cross Referencer - Explore source code in your browser - Particularly useful for the Linux kernel and other low-level projects in C/C++ (bootloaders, C libraries...)
最近看scsi相关处理的一些备忘,比较零碎,仅作参考。 先从最显而易见的打印入手: [0:0:0:0] disk ATA INTEL SSDSC2BX200150-[0:0:1:0] disk ATA INTEL SSDSC2BX200150-[0:1:0:0] disk LSI Logical Volume3000/dev/sda [5:0:0:0] enclosu AIC 12G 4U60: Hub 0c29 -[5:0:1:0] disk ...
Boot parameter: dm_mod.use_blk_mq=Y scsi_mod.use_blk_mq=Y 1. Normal state : (As expected) The command succeeded $ sg_write_same --lba=100 --xferlen=512 /dev/sg5 $ 2. Immediately after bringing down the iSCSI interface at the target ...
> @@ -3224,8 +3224,11 @@ static void __blk_mq_update_nr_hw_queues(struct > blk_mq_tag_set *set, > if (nr_hw_queues < 1 || nr_hw_queues == set->nr_hw_queues) > return; > > - list_for_each_entry(q, &set->tag_list, tag_set_list) ...
GRUB_CMDLINE_LINUX_DEFAULT="console=ttyS0 net.ifnames=0 dis_ucode_ldr earlyprintk=ttyS0 multipath=off rootdelay=300 scsi_mod.use_blk_mq=1 USE_BY_UUID_DEVICE_NAMES=1 nvme_core.io_timeout=240" --- OK GRUB contains timeouts. --- --- OK fstab file doesn't contain device names -...