redonkable/alistair23-linux
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cxgb4: Add support to query HW SRQ parameters

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

Signed-off-by: Raju Rangoju <rajur@chelsio.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Raju Rangoju 2018-03-20 15:41:40 +05:30 committed by David S. Miller
parent e47094751d
commit c68644ef16
2 changed files with 21 additions and 0 deletions
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20
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
View file

@ -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
drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
View file

@ -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;