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[intelxl] Allow admin cookie to hold extended opcode and return code 

The "send to PF" and "send to VF" admin queue descriptors (ab)use the
cookie field to hold the extended opcode and return code values.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
pull/92/head
Michael Brown 2019-04-24 13:00:12 +01:00
parent 7b68c310f9
commit 17298d0121
2 changed files with 16 additions and 7 deletions
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10
src/drivers/net/intelxl.c
View File

@ -313,8 +313,11 @@ static int intelxl_admin_command ( struct intelxl_nic *intelxl ) {
tail = ( admin->index % INTELXL_ADMIN_NUM_DESC );
cmd = &admin->desc[ index % INTELXL_ADMIN_NUM_DESC ];
buf = &admin->buf[ index % INTELXL_ADMIN_NUM_DESC ];
DBGC2 ( intelxl, "INTELXL %p admin command %#x opcode %#04x:\n",
DBGC2 ( intelxl, "INTELXL %p admin command %#x opcode %#04x",
intelxl, index, le16_to_cpu ( cmd->opcode ) );
if ( cmd->vopcode )
DBGC2 ( intelxl, "/%#08x", le32_to_cpu ( cmd->vopcode ) );
DBGC2 ( intelxl, ":\n" );
/* Sanity checks */
assert ( ! ( cmd->flags & cpu_to_le16 ( INTELXL_ADMIN_FL_DD ) ) );
@ -329,8 +332,9 @@ static int intelxl_admin_command ( struct intelxl_nic *intelxl ) {
cmd->params.buffer.low = cpu_to_le32 ( address & 0xffffffffUL );
}
/* Populate cookie */
cmd->cookie = cpu_to_le32 ( index );
/* Populate cookie, if not being (ab)used for VF opcode */
if ( ! cmd->vopcode )
cmd->cookie = cpu_to_le32 ( index );
/* Record cookie */
cookie = cmd->cookie;

13
src/drivers/net/intelxl.h
View File

@ -333,10 +333,15 @@ struct intelxl_admin_descriptor {
uint16_t len;
/** Return value */
uint16_t ret;
/** Cookie */
uint32_t cookie;
/** Reserved */
uint32_t reserved;
/** Opaque cookie / VF opcode */
union {
/** Cookie */
uint32_t cookie;
/** VF opcode */
uint32_t vopcode;
};
/** VF return value */
int32_t vret;
/** Parameters */
union intelxl_admin_params params;
} __attribute__ (( packed ));