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IB/rdmavt: Add R and S flags for queue pairs

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Use the flags originally provided for hfi1 in the rdmavt driver. These will
be made available to drivers in the qp header file.

Reviewed-by: Harish Chegondi <harish.chegondi@intel.com>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Dennis Dalessandro 2016-01-22 12:50:11 -08:00 committed by Doug Ledford
parent 6c43cf4b48
commit 050eb7fbe0
1 changed files with 80 additions and 0 deletions
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80
include/rdma/rdmavt_qp.h
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@ -48,6 +48,86 @@
*
*/
#include <rdma/ib_pack.h>
/*
* Atomic bit definitions for r_aflags.
*/
#define RVT_R_WRID_VALID 0
#define RVT_R_REWIND_SGE 1
/*
* Bit definitions for r_flags.
*/
#define RVT_R_REUSE_SGE 0x01
#define RVT_R_RDMAR_SEQ 0x02
#define RVT_R_RSP_NAK 0x04
#define RVT_R_RSP_SEND 0x08
#define RVT_R_COMM_EST 0x10
/*
* Bit definitions for s_flags.
*
* RVT_S_SIGNAL_REQ_WR - set if QP send WRs contain completion signaled
* RVT_S_BUSY - send tasklet is processing the QP
* RVT_S_TIMER - the RC retry timer is active
* RVT_S_ACK_PENDING - an ACK is waiting to be sent after RDMA read/atomics
* RVT_S_WAIT_FENCE - waiting for all prior RDMA read or atomic SWQEs
* before processing the next SWQE
* RVT_S_WAIT_RDMAR - waiting for a RDMA read or atomic SWQE to complete
* before processing the next SWQE
* RVT_S_WAIT_RNR - waiting for RNR timeout
* RVT_S_WAIT_SSN_CREDIT - waiting for RC credits to process next SWQE
* RVT_S_WAIT_DMA - waiting for send DMA queue to drain before generating
* next send completion entry not via send DMA
* RVT_S_WAIT_PIO - waiting for a send buffer to be available
* RVT_S_WAIT_TX - waiting for a struct verbs_txreq to be available
* RVT_S_WAIT_DMA_DESC - waiting for DMA descriptors to be available
* RVT_S_WAIT_KMEM - waiting for kernel memory to be available
* RVT_S_WAIT_PSN - waiting for a packet to exit the send DMA queue
* RVT_S_WAIT_ACK - waiting for an ACK packet before sending more requests
* RVT_S_SEND_ONE - send one packet, request ACK, then wait for ACK
* RVT_S_ECN - a BECN was queued to the send engine
*/
#define RVT_S_SIGNAL_REQ_WR 0x0001
#define RVT_S_BUSY 0x0002
#define RVT_S_TIMER 0x0004
#define RVT_S_RESP_PENDING 0x0008
#define RVT_S_ACK_PENDING 0x0010
#define RVT_S_WAIT_FENCE 0x0020
#define RVT_S_WAIT_RDMAR 0x0040
#define RVT_S_WAIT_RNR 0x0080
#define RVT_S_WAIT_SSN_CREDIT 0x0100
#define RVT_S_WAIT_DMA 0x0200
#define RVT_S_WAIT_PIO 0x0400
#define RVT_S_WAIT_TX 0x0800
#define RVT_S_WAIT_DMA_DESC 0x1000
#define RVT_S_WAIT_KMEM 0x2000
#define RVT_S_WAIT_PSN 0x4000
#define RVT_S_WAIT_ACK 0x8000
#define RVT_S_SEND_ONE 0x10000
#define RVT_S_UNLIMITED_CREDIT 0x20000
#define RVT_S_AHG_VALID 0x40000
#define RVT_S_AHG_CLEAR 0x80000
#define RVT_S_ECN 0x100000
/*
* Wait flags that would prevent any packet type from being sent.
*/
#define RVT_S_ANY_WAIT_IO (RVT_S_WAIT_PIO | RVT_S_WAIT_TX | \
RVT_S_WAIT_DMA_DESC | RVT_S_WAIT_KMEM)
/*
* Wait flags that would prevent send work requests from making progress.
*/
#define RVT_S_ANY_WAIT_SEND (RVT_S_WAIT_FENCE | RVT_S_WAIT_RDMAR | \
RVT_S_WAIT_RNR | RVT_S_WAIT_SSN_CREDIT | RVT_S_WAIT_DMA | \
RVT_S_WAIT_PSN | RVT_S_WAIT_ACK)
#define RVT_S_ANY_WAIT (RVT_S_ANY_WAIT_IO | RVT_S_ANY_WAIT_SEND)
/* Number of bits to pay attention to in the opcode for checking qp type */
#define RVT_OPCODE_QP_MASK 0xE0
/*
* Send work request queue entry.
* The size of the sg_list is determined when the QP is created and stored