diff options
| author | Christoph Hellwig <hch@lst.de> | 2021-03-31 09:29:56 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-04-06 09:28:17 -0600 |
| commit | a5f7a122dc04d7000ed60f6f7df76aa5be8bd7cf (patch) | |
| tree | 79da7b2a23f61c6acb3c929b5f623ad355660cf2 /drivers/scsi/BusLogic.c | |
| parent | 8cad3b66bff4ee7c7d52b9a663cb6a2c5f66a7f7 (diff) | |
BusLogic: reject broken old firmware that requires ISA-style bounce buffering
Warn on and don't support adapters that have a DMA bug that forces ISA-style
bounce buffering.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Khalid Aziz <khalid@gonehiking.org>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20210331073001.46776-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/scsi/BusLogic.c')
| -rw-r--r-- | drivers/scsi/BusLogic.c | 21 |
1 files changed, 6 insertions, 15 deletions
diff --git a/drivers/scsi/BusLogic.c b/drivers/scsi/BusLogic.c index 25ca2f938346..69068081f439 100644 --- a/drivers/scsi/BusLogic.c +++ b/drivers/scsi/BusLogic.c @@ -1616,14 +1616,12 @@ static bool __init blogic_rdconfig(struct blogic_adapter *adapter) hardware bug whereby when the BIOS is enabled, transfers to/from the same address range the BIOS occupies modulo 16MB are handled incorrectly. Only properly functioning BT-445S Host Adapters - have firmware version 3.37, so require that ISA Bounce Buffers - be used for the buggy BT-445S models if there is more than 16MB - memory. + have firmware version 3.37. */ - if (adapter->bios_addr > 0 && strcmp(adapter->model, "BT-445S") == 0 && - strcmp(adapter->fw_ver, "3.37") < 0 && - (void *) high_memory > (void *) MAX_DMA_ADDRESS) - adapter->need_bouncebuf = true; + if (adapter->bios_addr > 0 && + strcmp(adapter->model, "BT-445S") == 0 && + strcmp(adapter->fw_ver, "3.37") < 0) + return blogic_failure(adapter, "Too old firmware"); /* Initialize parameters common to MultiMaster and FlashPoint Host Adapters. @@ -1646,14 +1644,9 @@ common: if (adapter->drvr_opts != NULL && adapter->drvr_opts->qdepth[tgt_id] > 0) qdepth = adapter->drvr_opts->qdepth[tgt_id]; - else if (adapter->need_bouncebuf) - qdepth = BLOGIC_TAG_DEPTH_BB; adapter->qdepth[tgt_id] = qdepth; } - if (adapter->need_bouncebuf) - adapter->untag_qdepth = BLOGIC_UNTAG_DEPTH_BB; - else - adapter->untag_qdepth = BLOGIC_UNTAG_DEPTH; + adapter->untag_qdepth = BLOGIC_UNTAG_DEPTH; if (adapter->drvr_opts != NULL) adapter->common_qdepth = adapter->drvr_opts->common_qdepth; if (adapter->common_qdepth > 0 && @@ -2155,7 +2148,6 @@ static void __init blogic_inithoststruct(struct blogic_adapter *adapter, host->this_id = adapter->scsi_id; host->can_queue = adapter->drvr_qdepth; host->sg_tablesize = adapter->drvr_sglimit; - host->unchecked_isa_dma = adapter->need_bouncebuf; host->cmd_per_lun = adapter->untag_qdepth; } @@ -3677,7 +3669,6 @@ static struct scsi_host_template blogic_template = { #if 0 .eh_abort_handler = blogic_abort, #endif - .unchecked_isa_dma = 1, .max_sectors = 128, }; |