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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>
This commit is contained in:
Kumar Sanghvi 2017-11-01 08:53:03 +05:30 committed by David S. Miller
parent 3b0b3bee56
commit 9d922d4b01
3 changed files with 25 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c
View File

@ -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 @@ static int get_filter_count(struct adapter *adapter, unsigned int fidx,
}
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)

6
drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
View File

@ -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;

2
drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
View File

@ -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)
{