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authorKumar Sanghvi <kumaras@chelsio.com>2017-11-01 04:23:03 +0100
committerDavid S. Miller <davem@davemloft.net>2017-11-01 14:06:03 +0100
commit9d922d4b016d3d7908dd70112aaf46a38313d866 (patch)
treec8e6ab827d6c662b94348e5b30aad7a87c2ba404 /drivers/net/ethernet
parentcxgb4: add support to delete hash filter (diff)
downloadlinux-9d922d4b016d3d7908dd70112aaf46a38313d866.tar.xz
linux-9d922d4b016d3d7908dd70112aaf46a38313d866.zip
cxgb4: add support to retrieve stats for hash filters
Add support to retrieve packet-count and byte-count for hash-filters by retrieving filter-entry appropriately based on whether the request is for hash-filter or not. Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com> Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet')
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c30
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c6
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h2
3 files changed, 25 insertions, 13 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c
index eb6ba9824501..9b3ff6209eb5 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c
@@ -341,7 +341,7 @@ static int get_filter_steerq(struct net_device *dev,
}
static int get_filter_count(struct adapter *adapter, unsigned int fidx,
- u64 *pkts, u64 *bytes)
+ u64 *pkts, u64 *bytes, bool hash)
{
unsigned int tcb_base, tcbaddr;
unsigned int word_offset;
@@ -350,14 +350,24 @@ static int get_filter_count(struct adapter *adapter, unsigned int fidx,
int ret;
tcb_base = t4_read_reg(adapter, TP_CMM_TCB_BASE_A);
- if ((fidx != (adapter->tids.nftids + adapter->tids.nsftids - 1)) &&
- fidx >= adapter->tids.nftids)
- return -E2BIG;
-
- f = &adapter->tids.ftid_tab[fidx];
- if (!f->valid)
- return -EINVAL;
+ if (is_hashfilter(adapter) && hash) {
+ if (fidx < adapter->tids.ntids) {
+ f = adapter->tids.tid_tab[fidx];
+ if (!f)
+ return -EINVAL;
+ } else {
+ return -E2BIG;
+ }
+ } else {
+ if ((fidx != (adapter->tids.nftids +
+ adapter->tids.nsftids - 1)) &&
+ fidx >= adapter->tids.nftids)
+ return -E2BIG;
+ f = &adapter->tids.ftid_tab[fidx];
+ if (!f->valid)
+ return -EINVAL;
+ }
tcbaddr = tcb_base + f->tid * TCB_SIZE;
spin_lock(&adapter->win0_lock);
@@ -409,11 +419,11 @@ out:
}
int cxgb4_get_filter_counters(struct net_device *dev, unsigned int fidx,
- u64 *hitcnt, u64 *bytecnt)
+ u64 *hitcnt, u64 *bytecnt, bool hash)
{
struct adapter *adapter = netdev2adap(dev);
- return get_filter_count(adapter, fidx, hitcnt, bytecnt);
+ return get_filter_count(adapter, fidx, hitcnt, bytecnt, hash);
}
int cxgb4_get_free_ftid(struct net_device *dev, int family)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
index ed377e2e9f8a..a26acd183eef 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
@@ -755,7 +755,8 @@ static void ch_flower_stats_cb(struct timer_list *t)
hash_for_each_rcu(adap->flower_anymatch_tbl, i, flower_entry, link) {
ret = cxgb4_get_filter_counters(adap->port[0],
flower_entry->filter_id,
- &packets, &bytes);
+ &packets, &bytes,
+ flower_entry->fs.hash);
if (!ret) {
spin_lock(&flower_entry->lock);
ofld_stats = &flower_entry->stats;
@@ -788,7 +789,8 @@ int cxgb4_tc_flower_stats(struct net_device *dev,
}
ret = cxgb4_get_filter_counters(dev, ch_flower->filter_id,
- &packets, &bytes);
+ &packets, &bytes,
+ ch_flower->fs.hash);
if (ret < 0)
goto err;
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
index a1c850861cbf..08e709ab6dd4 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
@@ -224,7 +224,7 @@ int cxgb4_set_filter(struct net_device *dev, int filter_id,
int cxgb4_del_filter(struct net_device *dev, int filter_id,
struct ch_filter_specification *fs);
int cxgb4_get_filter_counters(struct net_device *dev, unsigned int fidx,
- u64 *hitcnt, u64 *bytecnt);
+ u64 *hitcnt, u64 *bytecnt, bool hash);
static inline void set_wr_txq(struct sk_buff *skb, int prio, int queue)
{