diff options
author | Gilad Broner <gbroner@codeaurora.org> | 2017-02-04 03:56:50 +0300 |
---|---|---|
committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-02-08 02:04:12 +0300 |
commit | 7fabb77b3aa01651f9ebc7c139a253bcabb06880 (patch) | |
tree | dd9eb879a86efddce5daeaae6c0cb95119fec314 /drivers/scsi/ufs/ufshcd.c | |
parent | e0b299e36004f58f844b776df58f6882877bb18a (diff) | |
download | linux-7fabb77b3aa01651f9ebc7c139a253bcabb06880.tar.xz |
scsi: ufs: reduce printout for aborted requests
Details printed for each request that is aborted can overload the
target as there can be several requests that are aborted at once.
This change will print full request details only for the first
aborted request since the last link reset, and minimal details
for other subsequent requests.
Signed-off-by: Gilad Broner <gbroner@codeaurora.org>
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/ufs/ufshcd.c')
-rw-r--r-- | drivers/scsi/ufs/ufshcd.c | 46 |
1 files changed, 32 insertions, 14 deletions
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 61fea173df16..64d619a24e6e 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -396,6 +396,7 @@ static void ufshcd_print_trs(struct ufs_hba *hba, unsigned long bitmap, bool pr_prdt) { struct ufshcd_lrb *lrbp; + int prdt_length; int tag; for_each_set_bit(tag, &bitmap, hba->nutrs) { @@ -417,18 +418,17 @@ void ufshcd_print_trs(struct ufs_hba *hba, unsigned long bitmap, bool pr_prdt) (u64)lrbp->ucd_rsp_dma_addr); ufshcd_hex_dump("UPIU RSP: ", lrbp->ucd_rsp_ptr, sizeof(struct utp_upiu_rsp)); - if (pr_prdt) { - int prdt_length = le16_to_cpu( - lrbp->utr_descriptor_ptr->prd_table_length); - dev_err(hba->dev, - "UPIU[%d] - PRDT - %d entries phys@0x%llx\n", - tag, prdt_length, - (u64)lrbp->ucd_prdt_dma_addr); + prdt_length = le16_to_cpu( + lrbp->utr_descriptor_ptr->prd_table_length); + dev_err(hba->dev, + "UPIU[%d] - PRDT - %d entries phys@0x%llx\n", + tag, prdt_length, + (u64)lrbp->ucd_prdt_dma_addr); + + if (pr_prdt) ufshcd_hex_dump("UPIU PRDT: ", lrbp->ucd_prdt_ptr, - sizeof(struct ufshcd_sg_entry) * - prdt_length); - } + sizeof(struct ufshcd_sg_entry) * prdt_length); } } @@ -1848,6 +1848,8 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) } spin_unlock_irqrestore(hba->host->host_lock, flags); + hba->req_abort_count = 0; + /* acquire the tag to make sure device cmds don't use it */ if (test_and_set_bit_lock(tag, &hba->lrb_in_use)) { /* @@ -4970,7 +4972,9 @@ static int ufshcd_eh_device_reset_handler(struct scsi_cmnd *cmd) spin_lock_irqsave(host->host_lock, flags); ufshcd_transfer_req_compl(hba); spin_unlock_irqrestore(host->host_lock, flags); + out: + hba->req_abort_count = 0; if (!err) { err = SUCCESS; } else { @@ -5054,11 +5058,23 @@ static int ufshcd_abort(struct scsi_cmnd *cmd) /* Print Transfer Request of aborted task */ dev_err(hba->dev, "%s: Device abort task at tag %d\n", __func__, tag); - scsi_print_command(hba->lrb[tag].cmd); - ufshcd_print_host_regs(hba); - ufshcd_print_pwr_info(hba); - ufshcd_print_trs(hba, 1 << tag, true); + /* + * Print detailed info about aborted request. + * As more than one request might get aborted at the same time, + * print full information only for the first aborted request in order + * to reduce repeated printouts. For other aborted requests only print + * basic details. + */ + scsi_print_command(hba->lrb[tag].cmd); + if (!hba->req_abort_count) { + ufshcd_print_host_regs(hba); + ufshcd_print_pwr_info(hba); + ufshcd_print_trs(hba, 1 << tag, true); + } else { + ufshcd_print_trs(hba, 1 << tag, false); + } + hba->req_abort_count++; /* Skip task abort in case previous aborts failed and report failure */ if (lrbp->req_abort_skip) { @@ -5707,6 +5723,8 @@ static void ufshcd_clear_dbg_ufs_stats(struct ufs_hba *hba) memset(&hba->ufs_stats.nl_err, 0, err_reg_hist_size); memset(&hba->ufs_stats.tl_err, 0, err_reg_hist_size); memset(&hba->ufs_stats.dme_err, 0, err_reg_hist_size); + + hba->req_abort_count = 0; } /** |