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msm: ipa: Add stats for page recycling

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Adding stats for page recycling feature that tracks the
total number of packets replenished and tmp allocs for
coalescing and default pipes on Rx path.

Change-Id: Id92f5be4552101877c631628e71cf58e0da0f5d1
Acked-by: Priyadarshini Rajagopal <prajagop@qti.qualcomm.com>
Signed-off-by: Bojun Pan <bojunp@codeaurora.org>
This commit is contained in:
Bojun Pan 2019-08-22 14:53:46 -07:00 • committed by Gerrit - the friendly Code Review server
commit b5766bcabe
4 changed files with 37 additions and 0 deletions
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4
drivers/platform/msm/ipa/ipa_v3/ipa.c
View file

@ -6278,6 +6278,10 @@ static int ipa3_pre_init(const struct ipa3_plat_drv_res *resource_p,
ipa3_ctx->wan_rx_ring_size = resource_p->wan_rx_ring_size;
ipa3_ctx->lan_rx_ring_size = resource_p->lan_rx_ring_size;
ipa3_ctx->ipa_wan_skb_page = resource_p->ipa_wan_skb_page;
ipa3_ctx->stats.page_recycle_stats[0].total_replenished = 0;
ipa3_ctx->stats.page_recycle_stats[0].tmp_alloc = 0;
ipa3_ctx->stats.page_recycle_stats[1].total_replenished = 0;
ipa3_ctx->stats.page_recycle_stats[1].tmp_alloc = 0;
ipa3_ctx->skip_uc_pipe_reset = resource_p->skip_uc_pipe_reset;
ipa3_ctx->tethered_flow_control = resource_p->tethered_flow_control;
ipa3_ctx->ee = resource_p->ee;

24
drivers/platform/msm/ipa/ipa_v3/ipa_debugfs.c
View file

@ -1467,6 +1467,26 @@ static ssize_t ipa3_read_odlstats(struct file *file, char __user *ubuf,
return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, cnt);
}
static ssize_t ipa3_read_page_recycle_stats(struct file *file,
char __user *ubuf, size_t count, loff_t *ppos)
{
int nbytes;
int cnt = 0;
nbytes = scnprintf(dbg_buff, IPA_MAX_MSG_LEN,
"COAL : Total number of packets replenished =%llu\n"
"COAL : Number of tmp alloc packets =%llu\n"
"DEF : Total number of packets replenished =%llu\n"
"DEF : Number of tmp alloc packets =%llu\n",
ipa3_ctx->stats.page_recycle_stats[0].total_replenished,
ipa3_ctx->stats.page_recycle_stats[0].tmp_alloc,
ipa3_ctx->stats.page_recycle_stats[1].total_replenished,
ipa3_ctx->stats.page_recycle_stats[1].tmp_alloc);
cnt += nbytes;
return simple_read_from_buffer(ubuf, count, ppos, dbg_buff, cnt);
}
static ssize_t ipa3_read_wstats(struct file *file, char __user *ubuf,
size_t count, loff_t *ppos)
{
@ -2652,6 +2672,10 @@ static const struct ipa3_debugfs_file debugfs_files[] = {
"odlstats", IPA_READ_ONLY_MODE, NULL, {
.read = ipa3_read_odlstats,
}
}, {
"page_recycle_stats", IPA_READ_ONLY_MODE, NULL, {
.read = ipa3_read_page_recycle_stats,
}
}, {
"wdi", IPA_READ_ONLY_MODE, NULL, {
.read = ipa3_read_wdi,

4
drivers/platform/msm/ipa/ipa_v3/ipa_dp.c
View file

@ -1950,10 +1950,12 @@ static void ipa3_replenish_rx_page_recycle(struct ipa3_sys_context *sys)
u32 curr_wq;
int idx = 0;
struct page *cur_page;
u32 stats_i = 0;
/* start replenish only when buffers go lower than the threshold */
if (sys->rx_pool_sz - sys->len < IPA_REPL_XFER_THRESH)
return;
stats_i = (sys->ep->client == IPA_CLIENT_APPS_WAN_COAL_CONS) ? 0 : 1;
spin_lock_bh(&sys->spinlock);
rx_len_cached = sys->len;
@ -1973,6 +1975,7 @@ static void ipa3_replenish_rx_page_recycle(struct ipa3_sys_context *sys)
* Could not find idle page at curr index.
* Allocate a new one.
*/
ipa3_ctx->stats.page_recycle_stats[stats_i].tmp_alloc++;
if (curr_wq == atomic_read(&sys->repl->tail_idx))
break;
rx_pkt = sys->repl->cache[curr_wq];
@ -1993,6 +1996,7 @@ static void ipa3_replenish_rx_page_recycle(struct ipa3_sys_context *sys)
gsi_xfer_elem_array[idx].xfer_user_data = rx_pkt;
rx_len_cached++;
idx++;
ipa3_ctx->stats.page_recycle_stats[stats_i].total_replenished++;
/*
* gsi_xfer_elem_buffer has a size of IPA_REPL_XFER_THRESH.
* If this size is reached we need to queue the xfers.

5
drivers/platform/msm/ipa/ipa_v3/ipa_i.h
View file

@ -1272,6 +1272,10 @@ enum ipa3_config_this_ep {
IPA_DO_NOT_CONFIGURE_THIS_EP,
};
struct ipa3_page_recycle_stats {
u64 total_replenished;
u64 tmp_alloc;
};
struct ipa3_stats {
u32 tx_sw_pkts;
u32 tx_hw_pkts;
@ -1292,6 +1296,7 @@ struct ipa3_stats {
u32 flow_enable;
u32 flow_disable;
u32 tx_non_linear;
struct ipa3_page_recycle_stats page_recycle_stats[2];
};
/* offset for each stats */