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| author | Hannes Reinecke <hare@suse.de> | 2014-11-24 15:37:27 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2014-11-24 16:13:16 +0100 |
| commit | eeea2f9c2f2ecc5f3217edcacc95817047b143c2 (patch) | |
| tree | 30ae59b8af6754aca843d83a334f040459f1a031 /drivers/scsi/am53c974.c | |
| parent | 6df388f2d549d3a2a7ad58b632d2ecd25fc0ff3f (diff) | |
| download | lwn-eeea2f9c2f2ecc5f3217edcacc95817047b143c2.tar.gz lwn-eeea2f9c2f2ecc5f3217edcacc95817047b143c2.zip | |
esp_scsi: correctly detect am53c974
The am53c974 returns the same ID as the FAS236, but implements
things slightly differently. So detect the am53c974 by checking
for ESP_CONFIG4 register.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/scsi/am53c974.c')
| -rw-r--r-- | drivers/scsi/am53c974.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/scsi/am53c974.c b/drivers/scsi/am53c974.c index a42e8db057a4..6e88e38bd2a4 100644 --- a/drivers/scsi/am53c974.c +++ b/drivers/scsi/am53c974.c @@ -368,6 +368,8 @@ static void dc390_check_eeprom(struct esp *esp) } esp->scsi_id = EEbuf[DC390_EE_ADAPT_SCSI_ID]; esp->num_tags = 2 << EEbuf[DC390_EE_TAG_CMD_NUM]; + if (EEbuf[DC390_EE_MODE2] & DC390_EE_MODE2_ACTIVE_NEGATION) + esp->config4 |= ESP_CONFIG4_RADE | ESP_CONFIG4_RAE; } static int pci_esp_probe_one(struct pci_dev *pdev, |