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[infiniband] Add the concept of an Infiniband upper-layer driver

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Replace the explicit calls from the Infiniband core to the IPoIB layer
with the general concept of an Infiniband upper-layer driver
(analogous to a PCI driver) which can create arbitrary devices on top
of Infiniband devices.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2010-09-04 23:35:09 +01:00
parent ca4df90a63
commit 35b19d8848
4 changed files with 170 additions and 81 deletions
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42
src/include/ipxe/infiniband.h
View File

@@ -12,6 +12,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
#include <stdint.h>
#include <ipxe/refcnt.h>
#include <ipxe/device.h>
#include <ipxe/tables.h>
#include <ipxe/ib_packet.h>
#include <ipxe/ib_mad.h>
@@ -432,6 +433,34 @@ struct ib_device {
void *owner_priv;
};
/** An Infiniband upper-layer driver */
struct ib_driver {
/** Name */
const char *name;
/** Probe device
*
* @v ibdev Infiniband device
* @ret rc Return status code
*/
int ( * probe ) ( struct ib_device *ibdev );
/** Notify of device or link state change
*
* @v ibdev Infiniband device
*/
void ( * notify ) ( struct ib_device *ibdev );
/** Remove device
*
* @v ibdev Infiniband device
*/
void ( * remove ) ( struct ib_device *ibdev );
};
/** Infiniband driver table */
#define IB_DRIVERS __table ( struct ib_driver, "ib_drivers" )
/** Declare an Infiniband driver */
#define __ib_driver __table_entry ( IB_DRIVERS, 01 )
extern struct ib_completion_queue *
ib_create_cq ( struct ib_device *ibdev, unsigned int num_cqes,
struct ib_completion_queue_operations *op );
@@ -492,7 +521,7 @@ extern struct list_head ib_devices;
list_for_each_entry ( (ibdev), &ib_devices, list )
/**
* Check link state
* Check link state of Infiniband device
*
* @v ibdev Infiniband device
* @ret link_up Link is up
@@ -502,6 +531,17 @@ ib_link_ok ( struct ib_device *ibdev ) {
return ( ibdev->port_state == IB_PORT_STATE_ACTIVE );
}
/**
* Check whether or not Infiniband device is open
*
* @v ibdev Infiniband device
* @v is_open Infiniband device is open
*/
static inline __attribute__ (( always_inline )) int
ib_is_open ( struct ib_device *ibdev ) {
return ( ibdev->open_count > 0 );
}
/**
* Get reference to Infiniband device
*

3
src/include/ipxe/ipoib.h
View File

@@ -53,9 +53,6 @@ struct ipoib_hdr {
} __attribute__ (( packed ));
extern const char * ipoib_ntoa ( const void *ll_addr );
extern void ipoib_link_state_changed ( struct ib_device *ibdev );
extern int ipoib_probe ( struct ib_device *ibdev );
extern void ipoib_remove ( struct ib_device *ibdev );
extern struct net_device * alloc_ipoibdev ( size_t priv_size );
#endif /* _IPXE_IPOIB_H */