-----Original Message-----
From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Leyi Rong
Sent: Monday, March 16, 2020 3:46 PM
To: Zhang, Qi Z <qi.z.zh...@intel.com>; Ye, Xiaolong <xiaolong...@intel.com>
Cc: dev@dpdk.org; Rong, Leyi <leyi.r...@intel.com>
Subject: [dpdk-dev] [PATCH 07/12] net/iavf: add flow director enabled switch
value
The commit adds fdir_enabled flag into iavf_adapter structure to identify if
fdir id is active. Rx data path can be benefit if fdir id parsing is not
needed, especially in vector path.
Signed-off-by: Leyi Rong <leyi.r...@intel.com>
---
drivers/net/iavf/iavf.h | 1 +
drivers/net/iavf/iavf_rxtx.h | 26 ++++++++++++++++++++++++++
2 files changed, 27 insertions(+)
diff --git a/drivers/net/iavf/iavf.h b/drivers/net/iavf/iavf.h index
4fe15237a..1918a67f1 100644
--- a/drivers/net/iavf/iavf.h
+++ b/drivers/net/iavf/iavf.h
@@ -142,6 +142,7 @@ struct iavf_adapter {
bool tx_vec_allowed;
const uint32_t *ptype_tbl;
bool stopped;
+ uint8_t fdir_enabled;
};
/* IAVF_DEV_PRIVATE_TO */
diff --git a/drivers/net/iavf/iavf_rxtx.h b/drivers/net/iavf/iavf_rxtx.h index
c85207dae..5548d1adb 100644
--- a/drivers/net/iavf/iavf_rxtx.h
+++ b/drivers/net/iavf/iavf_rxtx.h
@@ -281,6 +281,32 @@ void iavf_dump_tx_descriptor(const struct iavf_tx_queue
*txq,
tx_desc->cmd_type_offset_bsz);
}
+/* Enable/disable flow director Rx processing in data path. */ static
+inline void iavf_fdir_rx_proc_enable(struct iavf_adapter *ad, bool on)
+{
+ static uint32_t ref_cnt;
+
+ if (on) {
+ /* enable flow director processing */
+ if (ref_cnt++ == 0) {
+ ad->fdir_enabled = on;
+ PMD_DRV_LOG(DEBUG,
+ "FDIR processing on RX set to %d", on);
+ }
+ } else {
+ if (ref_cnt >= 1) {
+ ref_cnt--;
+
+ if (ref_cnt == 0) {
+ ad->fdir_enabled = on;
+ PMD_DRV_LOG(DEBUG,
+ "FDIR processing on RX set to %d",
on);
+ }
+ }
+ }
+}
+
fdir_enabled is used for fast path. To avoid competition, how about to make it
in queue granularity?
#ifdef RTE_LIBRTE_IAVF_DEBUG_DUMP_DESC
#define IAVF_DUMP_RX_DESC(rxq, desc, rx_id) \
iavf_dump_rx_descriptor(rxq, desc, rx_id)
--
2.17.1
