megaraid
megaraid 的日志 : FW now in Ready state
drivers/scsi/megaraid/megaraid_sas_base.c 中看到的，
当使用 qemu 模拟的时候发现，
这里的 FW now in Ready state 如何理解，难道是 qemu 中提供了固件吗?
在 qemu 中观察到的 megaraid 相关的日志:
root@localhost:/home# dmesg | grep mega
[ 4.805378] megasas: 07.734.00.00-rc1
[ 4.806188] megaraid_sas 0000:00:04.0: BAR:0x1 BAR's base_addr(phys):0x0000004240040000 mapped virt_addr:0x00000000b0a238c1
[ 4.806203] megaraid_sas 0000:00:04.0: FW now in Ready state
[ 4.806204] megaraid_sas 0000:00:04.0: 63 bit DMA mask and 32 bit consistent mask
[ 4.806791] megaraid_sas 0000:00:04.0: requested/available msix 1/1 poll_queue 0
[ 4.806792] megaraid_sas 0000:00:04.0: current msix/max num queues : (1/32)
[ 4.806792] megaraid_sas 0000:00:04.0: RDPQ mode : (disabled)
[ 4.807485] megaraid_sas 0000:00:04.0: controller type : MR(512MB)
[ 4.807488] megaraid_sas 0000:00:04.0: Online Controller Reset(OCR) : Enabled
[ 4.807490] megaraid_sas 0000:00:04.0: Secure JBOD support : No
[ 4.807491] megaraid_sas 0000:00:04.0: NVMe passthru support : No
[ 4.807491] megaraid_sas 0000:00:04.0: FW provided TM TaskAbort/Reset timeout : 0 secs/0 secs
[ 4.807493] megaraid_sas 0000:00:04.0: JBOD sequence map support : No
[ 4.807493] megaraid_sas 0000:00:04.0: PCI Lane Margining support : No
[ 4.807500] megaraid_sas 0000:00:04.0: megasas_init_mfi: fw_support_ieee=67108864
[ 4.807602] megaraid_sas 0000:00:04.0: INIT adapter done
[ 4.807605] megaraid_sas 0000:00:04.0: JBOD sequence map is disabled megasas_setup_jbod_map 5803
[ 4.807636] megaraid_sas 0000:00:04.0: Unknown command completed! [0x0]
[ 4.807651] megaraid_sas 0000:00:04.0: Unknown command completed! [0x0]
[ 4.807655] megaraid_sas 0000:00:04.0: pci id : (0x1000)/(0x0079)/(0x1000)/(0x9261)
[ 4.807657] megaraid_sas 0000:00:04.0: unevenspan support : no
[ 4.807658] megaraid_sas 0000:00:04.0: firmware crash dump : no
[ 4.807659] megaraid_sas 0000:00:04.0: JBOD sequence map : disabled
[ 4.807661] megaraid_sas 0000:00:04.0: Max firmware commands: 1007 shared with default hw_queues = 1 poll_queues 0
虚拟机中在对应的日志添加 dump_stack 的结果，我猜测就读 mmio 空间的一个位置，然后就知道固件 ready 了:
abs_state = instance->instancet->read_fw_status_reg(instance);
[ 1.255869] Call Trace:
[ 1.255876] <TASK>
[ 1.255878] dump_stack_lvl+0x6f/0xb0
[ 1.255894] megasas_transition_to_ready+0x5c/0x70 [megaraid_sas]
[ 1.255904] megasas_probe_one.cold+0x129/0x1798 [megaraid_sas]
[ 1.255916] local_pci_probe+0x42/0x80
[ 1.255936] pci_device_probe+0xd8/0x250
[ 1.255943] ? sysfs_do_create_link_sd+0x6e/0xe0
[ 1.255962] really_probe+0xcc/0x350
[ 1.255972] ? pm_runtime_barrier+0x54/0x90
[ 1.255980] ? __pfx___driver_attach+0x10/0x10
[ 1.255982] __driver_probe_device+0x78/0x110
[ 1.255984] driver_probe_device+0x1f/0xa0
[ 1.255987] __driver_attach+0xbe/0x1d0
[ 1.255989] bus_for_each_dev+0x91/0xe0
[ 1.255995] bus_add_driver+0x115/0x200
[ 1.255999] driver_register+0x72/0xd0
[ 1.256004] megasas_init+0xdf/0xff0 [megaraid_sas]
[ 1.256011] ? __pfx_megasas_init+0x10/0x10 [megaraid_sas]
[ 1.256016] do_one_initcall+0x6f/0x2c0
[ 1.256023] do_init_module+0x60/0x230
[ 1.256039] init_module_from_file+0x85/0xc0
[ 1.256049] idempotent_init_module+0x11a/0x310
[ 1.256060] __x64_sys_finit_module+0x6d/0xd0
[ 1.256061] ? syscall_trace_enter+0x70/0x200
[ 1.256064] do_syscall_64+0x74/0xfa0
[ 1.256074] entry_SYSCALL_64_after_hwframe+0x76/0x7e
[ 1.256079] RIP: 0033:0x7f8488b02a8d
作为对比，这是物理机中的日志结果:
[ 165.854249] megaraid_sas 0000:04:00.0: BAR:0x0 BAR's base_addr(phys):0x0x0000010000100000 mapped virt_addr:0x0000000060ab7aa0
[ 165.861758] megaraid_sas 0000:04:00.0: FW now in Ready state
[ 165.870982] megaraid_sas 0000:04:00.0: 63 bit DMA mask and 63 bit consistent mask
[ 165.882365] megaraid_sas 0000:04:00.0: firmware supports msix : (128)
[ 165.913346] megaraid_sas 0000:04:00.0: requested/available msix: 128/128
[ 165.913349] megaraid_sas 0000:04:00.0: current msix/online cpus : (128/128)
[ 165.913350] megaraid_sas 0000:04:00.0: RDPQ mode : (enabled)
[ 165.913363] megaraid_sas 0000:04:00.0: Current firmware supports maximum commands: 5101 LDIO threshold: 0
[ 165.990896] megaraid_sas 0000:04:00.0: Performance mode :Latency (latency index = 1)
[ 166.002264] megaraid_sas 0000:04:00.0: FW supports sync cache : Yes
[ 166.012139] megaraid_sas 0000:04:00.0: megasas_disable_intr_fusion is called outbound_intr_mask:0x40000009
[ 166.288262] megaraid_sas 0000:04:00.0: FW supports atomic descriptor : Yes
[ 166.328886] megaraid_sas 0000:04:00.0: FW provided supportMaxExtLDs: 1 max_lds: 240
[ 166.350216] megaraid_sas 0000:04:00.0: controller type : MR(8192MB)
[ 166.440677] megaraid_sas 0000:04:00.0: Online Controller Reset(OCR) : Enabled
[ 166.440679] megaraid_sas 0000:04:00.0: Secure JBOD support : Yes
[ 166.440680] megaraid_sas 0000:04:00.0: NVMe passthru support : Yes
[ 166.440682] megaraid_sas 0000:04:00.0: FW provided TM TaskAbort/Reset timeout : 6 secs/60 secs
[ 166.440688] megaraid_sas 0000:04:00.0: PCI Lane Margining support : Yes
[ 166.496220] megaraid_sas 0000:04:00.0: JBOD sequence map support : Yes
[ 166.665431] megaraid_sas 0000:04:00.0: NVME page size : (4096)
[ 166.800715] megaraid_sas 0000:04:00.0: megasas_enable_intr_fusion is called outbound_intr_mask:0x40000000
[ 166.815261] megaraid_sas 0000:04:00.0: INIT adapter done
[ 166.994602] megaraid_sas 0000:04:00.0: Snap dump wait time : 15
[ 167.003475] megaraid_sas 0000:04:00.0: pci id : (0x1000)/(0x10e2)/(0x1000)/(0x4000)
[ 167.014340] megaraid_sas 0000:04:00.0: unevenspan support : no
[ 167.023237] megaraid_sas 0000:04:00.0: firmware crash dump : no
[ 167.032179] megaraid_sas 0000:04:00.0: JBOD sequence map : enabled
[ 167.077265] megaraid_sas 0000:04:00.0: Max firmware commands: 5100 shared with default HW queues: 1 poll_queues: 0
然后将这个 HBA 直通到虚拟机中，结果为:
[ 2.645289] megasas: 07.735.03.00
[ 2.649725] megaraid_sas 0000:00:02.0: BAR:0x1 BAR's base_addr(phys):0x0x00000e0000040000 mapped virt_addr:0x000000009ee056c0
[ 2.660357] megaraid_sas 0000:00:02.0: FW now in Ready state
[ 2.661948] megaraid_sas 0000:00:02.0: 63 bit DMA mask and 32 bit consistent mask
[ 2.665660] megaraid_sas 0000:00:02.0: requested/available msix: 1/1
[ 2.667451] megaraid_sas 0000:00:02.0: current msix/online cpus : (1/32)
[ 2.669045] megaraid_sas 0000:00:02.0: RDPQ mode : (disabled)
[ 2.678477] megaraid_sas 0000:00:02.0: controller type : MR(512MB)
[ 2.679969] megaraid_sas 0000:00:02.0: Online Controller Reset(OCR) : Enabled
[ 2.681595] megaraid_sas 0000:00:02.0: Secure JBOD support : No
[ 2.681608] megaraid_sas 0000:00:02.0: NVMe passthru support : No
[ 2.688189] megaraid_sas 0000:00:02.0: FW provided TM TaskAbort/Reset timeout : 0 secs/0 secs
[ 2.690194] megaraid_sas 0000:00:02.0: PCI Lane Margining support : No
[ 2.691813] megaraid_sas 0000:00:02.0: JBOD sequence map support : No
[ 2.691828] megaraid_sas 0000:00:02.0: megasas_init_mfi: fw_support_ieee=67108864
[ 2.692015] megaraid_sas 0000:00:02.0: INIT adapter done
[ 2.696596] megaraid_sas 0000:00:02.0: JBOD sequence map is disabled megasas_setup_jbod_map 6208
[ 2.696643] megaraid_sas 0000:00:02.0: pci id : (0x1000)/(0x0079)/(0x1000)/(0x9261)
[ 2.696644] megaraid_sas 0000:00:02.0: unevenspan support : no
[ 2.696645] megaraid_sas 0000:00:02.0: firmware crash dump : no
[ 2.696647] megaraid_sas 0000:00:02.0: JBOD sequence map : disabled
[ 2.696650] megaraid_sas 0000:00:02.0: Max firmware commands: 1007 shared with default HW queues: 1 poll_queues: 0
[ 2.696732] megaraid_sas 0000:00:02.0: Unknown command completed! [0x0]
[ 2.709857] megaraid_sas 0000:00:02.0: Unknown command completed! [0x0]
[ 2.709911] megaraid_sas 0000:00:02.0: Unknown command completed! [0x0]
[ 2.711098] megaraid_sas 0000:00:06.0: BAR:0x0 BAR's base_addr(phys):0x0x00000e0400000000 mapped virt_addr:0x00000000c7c606dd
[ 2.711117] megaraid_sas 0000:00:06.0: FW now in Ready state
[ 2.711120] megaraid_sas 0000:00:06.0: 63 bit DMA mask and 63 bit consistent mask
[ 2.713153] megaraid_sas 0000:00:06.0: firmware supports msix : (128)
[ 2.725307] megaraid_sas 0000:00:06.0: requested/available msix: 33/33
[ 2.725310] megaraid_sas 0000:00:06.0: current msix/online cpus : (33/32)
[ 2.725311] megaraid_sas 0000:00:06.0: RDPQ mode : (enabled)
[ 2.725314] megaraid_sas 0000:00:06.0: Current firmware supports maximum commands: 5101 LDIO threshold: 0
[ 2.821727] megaraid_sas 0000:00:06.0: Performance mode :Latency (latency index = 1)
[ 2.823543] megaraid_sas 0000:00:06.0: FW supports sync cache : Yes
[ 2.824997] megaraid_sas 0000:00:06.0: megasas_disable_intr_fusion is called outbound_intr_mask:0x40000009
[ 2.914469] megaraid_sas 0000:00:06.0: FW supports atomic descriptor : Yes
[ 2.981463] megaraid_sas 0000:00:06.0: FW provided supportMaxExtLDs: 1 max_lds: 240
[ 2.982794] megaraid_sas 0000:00:06.0: controller type : MR(8192MB)
[ 2.983887] megaraid_sas 0000:00:06.0: Online Controller Reset(OCR) : Enabled
[ 2.985106] megaraid_sas 0000:00:06.0: Secure JBOD support : Yes
[ 2.986162] megaraid_sas 0000:00:06.0: NVMe passthru support : Yes
[ 2.987236] megaraid_sas 0000:00:06.0: FW provided TM TaskAbort/Reset timeout : 6 secs/60 secs
[ 2.988655] megaraid_sas 0000:00:06.0: PCI Lane Margining support : Yes
[ 2.989805] megaraid_sas 0000:00:06.0: JBOD sequence map support : Yes
[ 3.081751] megaraid_sas 0000:00:06.0: NVME page size : (4096)
[ 3.135205] megaraid_sas 0000:00:06.0: megasas_enable_intr_fusion is called outbound_intr_mask:0x40000000
[ 3.137181] megaraid_sas 0000:00:06.0: INIT adapter done
[ 3.138853] megaraid_sas 0000:00:06.0: Snap dump wait time : 15
[ 3.140134] megaraid_sas 0000:00:06.0: pci id : (0x1000)/(0x10e2)/(0x1000)/(0x4000)
[ 3.141728] megaraid_sas 0000:00:06.0: unevenspan support : no
[ 3.142979] megaraid_sas 0000:00:06.0: firmware crash dump : no
[ 3.144242] megaraid_sas 0000:00:06.0: JBOD sequence map : enabled
[ 3.146342] megaraid_sas 0000:00:06.0: Max firmware commands: 5100 shared with default HW queues: 1 poll_queues: 0
在 qemu 中 scsi-cd 可以在接入的 scsi 的机制是 megaraid 吗
答案是，当然可以，的确可以走通
root@localhost:~# ls -la /sys/class/block
总计 0
drwxr-xr-x. 2 root root 0 12月27日 21:57 .
drwxr-xr-x. 67 root root 0 12月27日 21:55 ..
lrwxrwxrwx. 1 root root 0 12月27日 21:55 dm-0 -> ../../devices/virtual/block/dm-0
lrwxrwxrwx. 1 root root 0 12月27日 21:55 sda -> ../../devices/pci0000:00/0000:00:03.0/virtio0/host2/target2:0:1/2:0:1:0/block/sda
lrwxrwxrwx. 1 root root 0 12月27日 21:57 sdb -> ../../devices/pci0000:00/0000:00:04.0/host3/target3:2:1/3:2:1:0/block/sdb
lrwxrwxrwx. 1 root root 0 12月27日 21:57 sr0 -> ../../devices/pci0000:00/0000:00:04.0/host3/target3:2:0/3:2:0:0/block/sr0
lrwxrwxrwx. 1 root root 0 12月27日 21:55 vda -> ../../devices/pci0000:00/0000:00:05.0/virtio1/block/vda
lrwxrwxrwx. 1 root root 0 12月27日 21:55 vda1 -> ../../devices/pci0000:00/0000:00:05.0/virtio1/block/vda/vda1
lrwxrwxrwx. 1 root root 0 12月27日 21:55 vda2 -> ../../devices/pci0000:00/0000:00:05.0/virtio1/block/vda/vda2
lrwxrwxrwx. 1 root root 0 12月27日 21:55 vda3 -> ../../devices/pci0000:00/0000:00:05.0/virtio1/block/vda/vda3
lrwxrwxrwx. 1 root root 0 12月27日 21:55 zram0 -> ../../devices/virtual/block/zram0
root@localhost:~# lspci -s 0000:00:04.0
00:04.0 RAID bus controller: Broadcom / LSI MegaRAID SAS 2108 [Liberator]
本站所有文章转发 CSDN 将按侵权追究法律责任，其它情况随意。