From: Arun Easi <arun.easi@xxxxxxxxxx> Sequence level error recovery (aka FC Tape) is not really required for disk devices. On heavily loaded system, with slow turn around, a bunch of status enquiries using REC puts additional burden to the target, so just turn off SLER by default. Signed-off-by: Arun Easi <arun.easi@xxxxxxxxxx> Signed-off-by: Saurav Kashyap <saurav.kashyap@xxxxxxxxxx> --- drivers/scsi/qla2xxx/qla_target.c | 18 ++++++++++++++---- 1 files changed, 14 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index c64266a..2d4003f 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -5172,8 +5172,13 @@ qlt_24xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_24xx *nv) nv->firmware_options_1 &= __constant_cpu_to_le32(~BIT_13); /* Enable initial LIP */ nv->firmware_options_1 &= __constant_cpu_to_le32(~BIT_9); - /* Enable FC tapes support */ - nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12); +#ifdef QLT_ENABLE_TAPE + /* Enable FC Tape support */ + nv->firmware_options_2 |= cpu_to_le32(BIT_12); +#else + /* Disable FC Tape support */ + nv->firmware_options_2 &= cpu_to_le32(~BIT_12); +#endif /* Disable Full Login after LIP */ nv->host_p &= __constant_cpu_to_le32(~BIT_10); /* Enable target PRLI control */ @@ -5255,8 +5260,13 @@ qlt_81xx_config_nvram_stage1(struct scsi_qla_host *vha, struct nvram_81xx *nv) nv->firmware_options_1 &= __constant_cpu_to_le32(~BIT_13); /* Enable initial LIP */ nv->firmware_options_1 &= __constant_cpu_to_le32(~BIT_9); - /* Enable FC tapes support */ - nv->firmware_options_2 |= __constant_cpu_to_le32(BIT_12); +#ifdef QLT_ENABLE_TAPE + /* Enable FC tape support */ + nv->firmware_options_2 |= cpu_to_le32(BIT_12); +#else + /* Disable FC tape support */ + nv->firmware_options_2 &= cpu_to_le32(~BIT_12); +#endif /* Disable Full Login after LIP */ nv->host_p &= __constant_cpu_to_le32(~BIT_10); /* Enable target PRLI control */ -- 1.7.7 -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
