diff options
Diffstat (limited to 'Documentation/scsi/ncr53c8xx.txt')
| -rw-r--r-- | Documentation/scsi/ncr53c8xx.txt | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/Documentation/scsi/ncr53c8xx.txt b/Documentation/scsi/ncr53c8xx.txt index 39d409a8efe5..230e30846ef2 100644 --- a/Documentation/scsi/ncr53c8xx.txt +++ b/Documentation/scsi/ncr53c8xx.txt | |||
| @@ -785,8 +785,8 @@ port address 0x1400. | |||
| 785 | irqm:0 always open drain | 785 | irqm:0 always open drain |
| 786 | irqm:1 same as initial settings (assumed BIOS settings) | 786 | irqm:1 same as initial settings (assumed BIOS settings) |
| 787 | irqm:2 always totem pole | 787 | irqm:2 always totem pole |
| 788 | irqm:0x10 driver will not use SA_SHIRQ flag when requesting irq | 788 | irqm:0x10 driver will not use IRQF_SHARED flag when requesting irq |
| 789 | irqm:0x20 driver will not use SA_INTERRUPT flag when requesting irq | 789 | irqm:0x20 driver will not use IRQF_DISABLED flag when requesting irq |
| 790 | 790 | ||
| 791 | (Bits 0x10 and 0x20 can be combined with hardware irq mode option) | 791 | (Bits 0x10 and 0x20 can be combined with hardware irq mode option) |
| 792 | 792 | ||
| @@ -1236,15 +1236,15 @@ when the SCSI DATA IN phase is reentered after a phase mismatch. | |||
| 1236 | When an IRQ is shared by devices that are handled by different drivers, it | 1236 | When an IRQ is shared by devices that are handled by different drivers, it |
| 1237 | may happen that one driver complains about the request of the IRQ having | 1237 | may happen that one driver complains about the request of the IRQ having |
| 1238 | failed. Inder Linux-2.0, this may be due to one driver having requested the | 1238 | failed. Inder Linux-2.0, this may be due to one driver having requested the |
| 1239 | IRQ using the SA_INTERRUPT flag but some other having requested the same IRQ | 1239 | IRQ using the IRQF_DISABLED flag but some other having requested the same IRQ |
| 1240 | without this flag. Under both Linux-2.0 and linux-2.2, this may be caused by | 1240 | without this flag. Under both Linux-2.0 and linux-2.2, this may be caused by |
| 1241 | one driver not having requested the IRQ with the SA_SHIRQ flag. | 1241 | one driver not having requested the IRQ with the IRQF_SHARED flag. |
| 1242 | 1242 | ||
| 1243 | By default, the ncr53c8xx and sym53c8xx drivers request IRQs with both the | 1243 | By default, the ncr53c8xx and sym53c8xx drivers request IRQs with both the |
| 1244 | SA_INTERRUPT and the SA_SHIRQ flag under Linux-2.0 and with only the SA_SHIRQ | 1244 | IRQF_DISABLED and the IRQF_SHARED flag under Linux-2.0 and with only the IRQF_SHARED |
| 1245 | flag under Linux-2.2. | 1245 | flag under Linux-2.2. |
| 1246 | 1246 | ||
| 1247 | Under Linux-2.0, you can disable use of SA_INTERRUPT flag from the boot | 1247 | Under Linux-2.0, you can disable use of IRQF_DISABLED flag from the boot |
| 1248 | command line by using the following option: | 1248 | command line by using the following option: |
| 1249 | 1249 | ||
| 1250 | ncr53c8xx=irqm:0x20 (for the generic ncr53c8xx driver) | 1250 | ncr53c8xx=irqm:0x20 (for the generic ncr53c8xx driver) |
| @@ -1252,7 +1252,7 @@ command line by using the following option: | |||
| 1252 | 1252 | ||
| 1253 | If this does not fix the problem, then you may want to check how all other | 1253 | If this does not fix the problem, then you may want to check how all other |
| 1254 | drivers are requesting the IRQ and report the problem. Note that if at least | 1254 | drivers are requesting the IRQ and report the problem. Note that if at least |
| 1255 | a single driver does not request the IRQ with the SA_SHIRQ flag (share IRQ), | 1255 | a single driver does not request the IRQ with the IRQF_SHARED flag (share IRQ), |
| 1256 | then the request of the IRQ obviously will not succeed for all the drivers. | 1256 | then the request of the IRQ obviously will not succeed for all the drivers. |
| 1257 | 1257 | ||
| 1258 | 15. SCSI problem troubleshooting | 1258 | 15. SCSI problem troubleshooting |