diff options
| author | Michael Brown <mcb30@etherboot.org> | 2009-10-14 02:09:49 +0100 |
|---|---|---|
| committer | Michael Brown <mcb30@etherboot.org> | 2009-10-14 02:11:16 +0100 |
| commit | 9f7141a1cedeca6d55b9ce43322f509a4577c883 (patch) | |
| tree | e2a90b24905305267a83904747643ebec171191d /src/drivers/infiniband/hermon.h | |
| parent | 4175b778c277c87980266c854139b7f93b5564d9 (diff) | |
| download | ipxe-9f7141a1cedeca6d55b9ce43322f509a4577c883.tar.gz | |
[hermon] Reset device during probe()
Some systems will retry their boot sequence in the event of a boot
failure. On these systems, the second and subsequent boot attempts
will fail to initialise the Hermon HCA.
Fix by resetting the HCA during probe(). This incurs a one-second
cost, but there seems to be no viable alternative.
Originally-fixed-by: Itay Gazit <itaygazit@gmail.com>
Diffstat (limited to 'src/drivers/infiniband/hermon.h')
| -rw-r--r-- | src/drivers/infiniband/hermon.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/drivers/infiniband/hermon.h b/src/drivers/infiniband/hermon.h index f19fd3598..c53f3da5a 100644 --- a/src/drivers/infiniband/hermon.h +++ b/src/drivers/infiniband/hermon.h @@ -29,6 +29,11 @@ FILE_LICENCE ( GPL2_OR_LATER ); #define HERMON_PCI_CONFIG_BAR_SIZE 0x100000 #define HERMON_PCI_UAR_BAR PCI_BASE_ADDRESS_2 +/* Device reset */ +#define HERMON_RESET_OFFSET 0x0f0010 +#define HERMON_RESET_MAGIC 0x01000000UL +#define HERMON_RESET_WAIT_TIME_MS 1000 + /* Work queue entry and completion queue entry opcodes */ #define HERMON_OPCODE_NOP 0x00 #define HERMON_OPCODE_SEND 0x0a |