From f881ceadd4d6afafb227bcf8165c1b63ba90065b Mon Sep 17 00:00:00 2001 From: "nagalakshmi.nandigama@lsi.com" Date: Wed, 19 Oct 2011 15:37:00 +0530 Subject: [PATCH] [SCSI] mpt2sas: Fix drives not getting properly deleted if sas cable is removed while host reset is active The fix is in the driver-firmware handshake device removal code. We need to read the controller ioc_state to see if controller is OPERATIONAL prior to sending target reset and OP_REMOVE. Previously it was checking the flag ioc->shost_recovery flag, which is always set when host reset is active, thus preventing drives from getting properly deleted. Signed-off-by: Nagalakshmi Nandigama Signed-off-by: James Bottomley --- drivers/scsi/mpt2sas/mpt2sas_scsih.c | 38 ++++++++++++++++++++++------ 1 file changed, 30 insertions(+), 8 deletions(-) diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index 8a9c70f21ecd..cd89f42440fe 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -3019,11 +3019,23 @@ _scsih_tm_tr_send(struct MPT2SAS_ADAPTER *ioc, u16 handle) struct MPT2SAS_TARGET *sas_target_priv_data; unsigned long flags; struct _tr_list *delayed_tr; + u32 ioc_state; - if (ioc->shost_recovery || ioc->remove_host || - ioc->pci_error_recovery) { - dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in " - "progress!\n", __func__, ioc->name)); + if (ioc->remove_host) { + dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host has been " + "removed: handle(0x%04x)\n", __func__, ioc->name, handle)); + return; + } else if (ioc->pci_error_recovery) { + dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host in pci " + "error recovery: handle(0x%04x)\n", __func__, ioc->name, + handle)); + return; + } + ioc_state = mpt2sas_base_get_iocstate(ioc, 1); + if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { + dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host is not " + "operational: handle(0x%04x)\n", __func__, ioc->name, + handle)); return; } @@ -3224,11 +3236,21 @@ _scsih_tm_tr_complete(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, mpt2sas_base_get_reply_virt_addr(ioc, reply); Mpi2SasIoUnitControlRequest_t *mpi_request; u16 smid_sas_ctrl; + u32 ioc_state; - if (ioc->shost_recovery || ioc->remove_host || - ioc->pci_error_recovery) { - dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host reset in " - "progress!\n", __func__, ioc->name)); + if (ioc->remove_host) { + dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host has been " + "removed\n", __func__, ioc->name)); + return 1; + } else if (ioc->pci_error_recovery) { + dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host in pci " + "error recovery\n", __func__, ioc->name)); + return 1; + } + ioc_state = mpt2sas_base_get_iocstate(ioc, 1); + if (ioc_state != MPI2_IOC_STATE_OPERATIONAL) { + dewtprintk(ioc, printk(MPT2SAS_INFO_FMT "%s: host is not " + "operational\n", __func__, ioc->name)); return 1; } -- 2.20.1