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Added extra check for inline mode. Closes #164
The actual maximum size for inline mode is now returned to the user and there is a check that inline_mode is either 0 or 1. Furthermore, this commit includes a minor improvement in ib_write()
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1 changed files with 12 additions and 8 deletions
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@ -116,6 +116,9 @@ static void ib_build_ibv(struct node *n)
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debug(LOG_IB | 3, "Created Queue Pair with %i receive and %i send elements",
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ib->qp_init.cap.max_recv_wr, ib->qp_init.cap.max_send_wr);
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if (ib->conn.inline_mode)
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info("Maximum inline size is set to %i byte", ib->qp_init.cap.max_inline_data);
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// Allocate memory
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ib->mem.p_recv.state = STATE_DESTROYED;
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ib->mem.p_recv.queue.state = STATE_DESTROYED;
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@ -409,6 +412,10 @@ int ib_check(struct node *n)
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if (ib->qp_init.cap.max_inline_data != 0)
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warn("You changed the default value of max_inline_data. This might influence the maximum number of outstanding Work Requests in the Queue Pair and can be a reason for the Queue Pair creation to fail");
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// Check if inline mode is set to a valid value
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if (ib->conn.inline_mode != 0 && ib->conn.inline_mode != 1)
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error("inline_mode has to be set to either 0 or 1! %i is not a valid value", ib->conn.inline_mode);
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info("Finished check of node %s", node_name(n));
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return 0;
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@ -765,7 +772,7 @@ int ib_write(struct node *n, struct sample *smps[], unsigned cnt, unsigned *rele
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// Check if data can be send inline
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int send_inline = (sge[sent].length < ib->qp_init.cap.max_inline_data) ?
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(ib->conn.inline_mode > 0) : 0;
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ib->conn.inline_mode : 0;
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debug(LOG_IB | 10, "Sample will be send inline [0/1]: %i", send_inline);
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@ -773,19 +780,16 @@ int ib_write(struct node *n, struct sample *smps[], unsigned cnt, unsigned *rele
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wr[sent].wr_id = send_inline ? 0 : (uintptr_t) smps[sent]; // This way the sample can be release in WC
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wr[sent].sg_list = &sge[sent];
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wr[sent].num_sge = 1;
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if (sent == (cnt-1)) {
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debug(LOG_IB | 10, "Prepared %i send Work Requests", (sent+1));
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wr[sent].next = NULL;
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}
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else
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wr[sent].next = &wr[sent+1];
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wr[sent].next = &wr[sent+1];
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wr[sent].send_flags = IBV_SEND_SIGNALED | (send_inline << 3);
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wr[sent].imm_data = htonl(0); //ToDo: set this to a useful value
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wr[sent].opcode = IBV_WR_SEND_WITH_IMM;
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}
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debug(LOG_IB | 10, "Prepared %i send Work Requests", cnt);
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wr[cnt-1].next = NULL;
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// Send linked list of Work Requests
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ret = ibv_post_send(ib->ctx.id->qp, wr, &bad_wr);
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debug(LOG_IB | 4, "Posted send Work Requests");
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