Commit c68644ef authored by Raju Rangoju's avatar Raju Rangoju Committed by David S. Miller
Browse files

cxgb4: Add support to query HW SRQ parameters



This patch adds support to query FW for the HW SRQ table start/end, and
advertise that for ULDs.

Signed-off-by: default avatarRaju Rangoju <rajur@chelsio.com>
Reviewed-by: default avatarSteve Wise <swise@opengridcomputing.com>
Signed-off-by: default avatarGanesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e4709475
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+20 −0
Original line number Diff line number Diff line
@@ -75,6 +75,7 @@
#include "t4fw_api.h"
#include "t4fw_version.h"
#include "cxgb4_dcb.h"
#include "srq.h"
#include "cxgb4_debugfs.h"
#include "clip_tbl.h"
#include "l2t.h"
@@ -586,6 +587,10 @@ static int fwevtq_handler(struct sge_rspq *q, const __be64 *rsp,
		const struct cpl_abort_rpl_rss *p = (void *)rsp;

		hash_del_filter_rpl(q->adap, p);
	} else if (opcode == CPL_SRQ_TABLE_RPL) {
		const struct cpl_srq_table_rpl *p = (void *)rsp;

		do_srq_table_rpl(q->adap, p);
	} else
		dev_err(q->adap->pdev_dev,
			"unexpected CPL %#x on FW event queue\n", opcode);
@@ -4467,6 +4472,20 @@ static int adap_init0(struct adapter *adap)
		adap->vres.pbl.start = val[4];
		adap->vres.pbl.size = val[5] - val[4] + 1;

		params[0] = FW_PARAM_PFVF(SRQ_START);
		params[1] = FW_PARAM_PFVF(SRQ_END);
		ret = t4_query_params(adap, adap->mbox, adap->pf, 0, 2,
				      params, val);
		if (!ret) {
			adap->vres.srq.start = val[0];
			adap->vres.srq.size = val[1] - val[0] + 1;
		}
		if (adap->vres.srq.size) {
			adap->srq = t4_init_srq(adap->vres.srq.size);
			if (!adap->srq)
				dev_warn(&adap->pdev->dev, "could not allocate SRQ, continuing\n");
		}

		params[0] = FW_PARAM_PFVF(SQRQ_START);
		params[1] = FW_PARAM_PFVF(SQRQ_END);
		params[2] = FW_PARAM_PFVF(CQ_START);
@@ -5135,6 +5154,7 @@ static void free_some_resources(struct adapter *adapter)

	kvfree(adapter->smt);
	kvfree(adapter->l2t);
	kvfree(adapter->srq);
	t4_cleanup_sched(adapter);
	kvfree(adapter->tids.tid_tab);
	cxgb4_cleanup_tc_flower(adapter);
+1 −0
Original line number Diff line number Diff line
@@ -284,6 +284,7 @@ struct cxgb4_virt_res { /* virtualized HW resources */
	struct cxgb4_range iscsi;
	struct cxgb4_range stag;
	struct cxgb4_range rq;
	struct cxgb4_range srq;
	struct cxgb4_range pbl;
	struct cxgb4_range qp;
	struct cxgb4_range cq;