diff options
| author | Michael Brown | 2009-07-17 23:50:33 +0200 |
|---|---|---|
| committer | Michael Brown | 2009-07-18 00:06:33 +0200 |
| commit | 1f5c0239b4fc5dea895645397d5aaa3d4b95205a (patch) | |
| tree | 0f4f5f50363702b601f3a7b966bc12a2a6797a22 /src/include | |
| parent | [infiniband] Provide ib_get_hca_info() as a commonly-available function (diff) | |
| download | ipxe-1f5c0239b4fc5dea895645397d5aaa3d4b95205a.tar.gz ipxe-1f5c0239b4fc5dea895645397d5aaa3d4b95205a.tar.xz ipxe-1f5c0239b4fc5dea895645397d5aaa3d4b95205a.zip | |
[infiniband] Centralise assumption of 2048-byte payloads
IPoIB and the SMA have separate constants for the packet size to be
used to I/O buffer allocations. Merge these into the single
IB_MAX_PAYLOAD_SIZE constant.
(Various other points in the Infiniband stack have hard-coded
assumptions of a 2048-byte payload; we don't currently support
variable MTUs.)
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/gpxe/ib_qset.h | 5 | ||||
| -rw-r--r-- | src/include/gpxe/ib_sma.h | 3 | ||||
| -rw-r--r-- | src/include/gpxe/infiniband.h | 8 | ||||
| -rw-r--r-- | src/include/gpxe/ipoib.h | 3 |
4 files changed, 9 insertions, 10 deletions
diff --git a/src/include/gpxe/ib_qset.h b/src/include/gpxe/ib_qset.h index 90c92a589..d7a76178e 100644 --- a/src/include/gpxe/ib_qset.h +++ b/src/include/gpxe/ib_qset.h @@ -20,16 +20,13 @@ struct ib_queue_set { struct ib_queue_pair *qp; /** Receive work queue maximum fill level */ unsigned int recv_max_fill; - /** Receive packet length */ - size_t recv_pkt_len; }; extern int ib_create_qset ( struct ib_device *ibdev, struct ib_queue_set *qset, unsigned int num_cqes, struct ib_completion_queue_operations *cq_op, unsigned int num_send_wqes, - unsigned int num_recv_wqes, size_t recv_pkt_len, - unsigned long qkey ); + unsigned int num_recv_wqes, unsigned long qkey ); extern void ib_qset_refill_recv ( struct ib_device *ibdev, struct ib_queue_set *qset ); extern void ib_destroy_qset ( struct ib_device *ibdev, diff --git a/src/include/gpxe/ib_sma.h b/src/include/gpxe/ib_sma.h index af40a48a2..6d984804a 100644 --- a/src/include/gpxe/ib_sma.h +++ b/src/include/gpxe/ib_sma.h @@ -37,9 +37,6 @@ struct ib_sma { struct process poll; }; -/** SMA payload size allocated for received packets */ -#define IB_SMA_PAYLOAD_LEN 2048 - /** SMA number of send WQEs * * This is a policy decision. diff --git a/src/include/gpxe/infiniband.h b/src/include/gpxe/infiniband.h index 406933b6a..6cfceda66 100644 --- a/src/include/gpxe/infiniband.h +++ b/src/include/gpxe/infiniband.h @@ -24,6 +24,14 @@ FILE_LICENCE ( GPL2_OR_LATER ); /** Subnet administrator queue key */ #define IB_GLOBAL_QKEY 0x80010000UL +/** + * Maximum payload size + * + * This is currently hard-coded in various places (drivers, subnet + * management agent, etc.) to 2048. + */ +#define IB_MAX_PAYLOAD_SIZE 2048 + struct ib_device; struct ib_queue_pair; struct ib_address_vector; diff --git a/src/include/gpxe/ipoib.h b/src/include/gpxe/ipoib.h index 79d7b3fbc..f8231db08 100644 --- a/src/include/gpxe/ipoib.h +++ b/src/include/gpxe/ipoib.h @@ -10,9 +10,6 @@ FILE_LICENCE ( GPL2_OR_LATER ); #include <gpxe/infiniband.h> -/** IPoIB packet length */ -#define IPOIB_PKT_LEN 2048 - /** IPoIB MAC address length */ #define IPOIB_ALEN 20 |