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| author | Michael Brown | 2010-09-22 21:05:39 +0200 |
|---|---|---|
| committer | Michael Brown | 2010-09-22 21:05:39 +0200 |
| commit | 29ad8a922b3d1ec1cb743f5e9c6907e5c0f00c99 (patch) | |
| tree | 4c789967cad14ade04c876bd0e09003b71d2798d /src/drivers/block | |
| parent | [libc] Ensure that error numbers from EUNIQ() have the correct type (diff) | |
| download | ipxe-29ad8a922b3d1ec1cb743f5e9c6907e5c0f00c99.tar.gz ipxe-29ad8a922b3d1ec1cb743f5e9c6907e5c0f00c99.tar.xz ipxe-29ad8a922b3d1ec1cb743f5e9c6907e5c0f00c99.zip | |
[infiniband] Include the SRP login rejection reason in the error number
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/drivers/block')
| -rw-r--r-- | src/drivers/block/srp.c | 55 |
1 files changed, 50 insertions, 5 deletions
diff --git a/src/drivers/block/srp.c b/src/drivers/block/srp.c index 007e62d1..098a973e 100644 --- a/src/drivers/block/srp.c +++ b/src/drivers/block/srp.c @@ -54,6 +54,50 @@ FEATURE ( FEATURE_PROTOCOL, "SRP", DHCP_EB_FEATURE_SRP, 1 ); */ #define SRP_MAX_I_T_IU_LEN 80 +/* Error numbers generated by SRP login rejection */ +#define EINFO_SRP_LOGIN_REJ( reason, desc ) \ + __einfo_uniqify ( EINFO_EPERM, ( (reason) & 0x0f ), desc ) +#define EPERM_UNKNOWN \ + __einfo_error ( EINFO_EPERM_UNKNOWN ) +#define EINFO_EPERM_UNKNOWN EINFO_SRP_LOGIN_REJ ( \ + SRP_LOGIN_REJ_REASON_UNKNOWN, \ + "Unable to establish RDMA channel, no reason specified" ) +#define EPERM_INSUFFICIENT_RESOURCES \ + __einfo_error ( EINFO_EPERM_INSUFFICIENT_RESOURCES ) +#define EINFO_EPERM_INSUFFICIENT_RESOURCES EINFO_SRP_LOGIN_REJ ( \ + SRP_LOGIN_REJ_REASON_INSUFFICIENT_RESOURCES, \ + "Insufficient RDMA channel resources" ) +#define EPERM_BAD_MAX_I_T_IU_LEN \ + __einfo_error ( EINFO_EPERM_BAD_MAX_I_T_IU_LEN ) +#define EINFO_EPERM_BAD_MAX_I_T_IU_LEN EINFO_SRP_LOGIN_REJ ( \ + SRP_LOGIN_REJ_REASON_BAD_MAX_I_T_IU_LEN, \ + "Requested maximum initiator to target IU length value too large" ) +#define EPERM_CANNOT_ASSOCIATE \ + __einfo_error ( EINFO_EPERM_CANNOT_ASSOCIATE ) +#define EINFO_EPERM_CANNOT_ASSOCIATE EINFO_SRP_LOGIN_REJ ( \ + SRP_LOGIN_REJ_REASON_CANNOT_ASSOCIATE, \ + "Unable to associate RDMA channel with specified I_T nexus" ) +#define EPERM_UNSUPPORTED_BUFFER_FORMAT \ + __einfo_error ( EINFO_EPERM_UNSUPPORTED_BUFFER_FORMAT ) +#define EINFO_EPERM_UNSUPPORTED_BUFFER_FORMAT EINFO_SRP_LOGIN_REJ ( \ + SRP_LOGIN_REJ_REASON_UNSUPPORTED_BUFFER_FORMAT, \ + "One or more requested data buffer descriptor formats not supported" ) +#define EPERM_NO_MULTIPLE_CHANNELS \ + __einfo_error ( EINFO_EPERM_NO_MULTIPLE_CHANNELS ) +#define EINFO_EPERM_NO_MULTIPLE_CHANNELS EINFO_SRP_LOGIN_REJ ( \ + SRP_LOGIN_REJ_REASON_NO_MULTIPLE_CHANNELS, \ + "SRP target does not support multiple RDMA channels per I_T nexus" ) +#define EPERM_NO_MORE_CHANNELS \ + __einfo_error ( EINFO_EPERM_NO_MORE_CHANNELS ) +#define EINFO_EPERM_NO_MORE_CHANNELS EINFO_SRP_LOGIN_REJ ( \ + SRP_LOGIN_REJ_REASON_NO_MORE_CHANNELS, \ + "RDMA channel limit reached for this initiator" ) +#define EPERM_LOGIN_REJ( reason_nibble ) \ + EUNIQ ( EPERM, (reason_nibble), EPERM_UNKNOWN, \ + EPERM_INSUFFICIENT_RESOURCES, EPERM_BAD_MAX_I_T_IU_LEN, \ + EPERM_CANNOT_ASSOCIATE, EPERM_UNSUPPORTED_BUFFER_FORMAT, \ + EPERM_NO_MULTIPLE_CHANNELS, EPERM_NO_MORE_CHANNELS ) + /** An SRP device */ struct srp_device { /** Reference count */ @@ -330,6 +374,7 @@ static int srp_login_rsp ( struct srp_device *srpdev, static int srp_login_rej ( struct srp_device *srpdev, const void *data, size_t len ) { const struct srp_login_rej *login_rej = data; + uint32_t reason; /* Sanity check */ if ( len < sizeof ( *login_rej ) ) { @@ -337,14 +382,14 @@ static int srp_login_rej ( struct srp_device *srpdev, srpdev, len ); return -EINVAL; } - DBGC ( srpdev, "SRP %p tag %08x LOGIN_REJ:\n", - srpdev, ntohl ( login_rej->tag.dwords[1] ) ); + reason = ntohl ( login_rej->reason ); + DBGC ( srpdev, "SRP %p tag %08x LOGIN_REJ reason %08x:\n", + srpdev, ntohl ( login_rej->tag.dwords[1] ), reason ); DBGC_HDA ( srpdev, 0, data, len ); /* Login rejection always indicates an error */ - DBGC ( srpdev, "SRP %p login rejected (reason %08x)\n", - srpdev, ntohl ( login_rej->reason ) ); - return -EPERM; + return ( SRP_LOGIN_REJ_REASON_DEFINED ( reason ) ? + -EPERM_LOGIN_REJ ( reason ) : -EACCES ); } /** |