DPDK patches and discussions
 help / color / mirror / Atom feed
From: Cheng Jiang <Cheng1.jiang@intel.com>
To: bruce.richardson@intel.com, dev@dpdk.org
Cc: patrick.fu@intel.com, Cheng Jiang <Cheng1.jiang@intel.com>
Subject: [dpdk-dev] [PATCH 20.11] raw/ioat: added a flag to control copying handle parameters
Date: Mon, 13 Jul 2020 07:15:19 +0000
Message-ID: <20200713071519.110662-1-Cheng1.jiang@intel.com> (raw)

Added a flag which controls whether rte_ioat_enqueue_copy
and rte_ioat_completed_copies function should process
handle parameters to improve the performance when handle
parameters are not necessary to use. This is targeting
20.11 release.

Signed-off-by: Cheng Jiang <Cheng1.jiang@intel.com>
---
 drivers/raw/ioat/ioat_rawdev.c     |  1 +
 drivers/raw/ioat/rte_ioat_rawdev.h | 14 +++++++++++---
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/raw/ioat/ioat_rawdev.c b/drivers/raw/ioat/ioat_rawdev.c
index 87fd088aa..5bf030785 100644
--- a/drivers/raw/ioat/ioat_rawdev.c
+++ b/drivers/raw/ioat/ioat_rawdev.c
@@ -57,6 +57,7 @@ ioat_dev_configure(const struct rte_rawdev *dev, rte_rawdev_obj_t config)
 		return -EINVAL;
 
 	ioat->ring_size = params->ring_size;
+	ioat->hdls_enable = params->hdls_enable;
 	if (ioat->desc_ring != NULL) {
 		rte_memzone_free(ioat->desc_mz);
 		ioat->desc_ring = NULL;
diff --git a/drivers/raw/ioat/rte_ioat_rawdev.h b/drivers/raw/ioat/rte_ioat_rawdev.h
index f765a6557..daca04dd3 100644
--- a/drivers/raw/ioat/rte_ioat_rawdev.h
+++ b/drivers/raw/ioat/rte_ioat_rawdev.h
@@ -35,6 +35,7 @@
  */
 struct rte_ioat_rawdev_config {
 	unsigned short ring_size;
+	bool hdls_enable;
 };
 
 /**
@@ -52,6 +53,8 @@ struct rte_ioat_rawdev {
 
 	unsigned short ring_size;
 	struct rte_ioat_generic_hw_desc *desc_ring;
+
+	bool hdls_enable; /* control if handles need to be copied */
 	__m128i *hdls; /* completion handles for returning to user */
 
 
@@ -121,8 +124,10 @@ rte_ioat_enqueue_copy(int dev_id, phys_addr_t src, phys_addr_t dst,
 	desc->u.control_raw = (uint32_t)((!!fence << 4) | (!(write & 0xF)) << 3);
 	desc->src_addr = src;
 	desc->dest_addr = dst;
+	if (ioat->hdls_enable)
+		ioat->hdls[write] = _mm_set_epi64x((int64_t)dst_hdl,
+					(int64_t)src_hdl);
 
-	ioat->hdls[write] = _mm_set_epi64x((int64_t)dst_hdl, (int64_t)src_hdl);
 	rte_prefetch0(&ioat->desc_ring[ioat->next_write & mask]);
 
 	ioat->enqueued++;
@@ -208,6 +213,11 @@ rte_ioat_completed_copies(int dev_id, uint8_t max_copies,
 	if (count > max_copies)
 		count = max_copies;
 
+	ioat->next_read = read + count;
+	ioat->completed += count;
+	if (!ioat->hdls_enable)
+		return count;
+
 	for (; i < count - 1; i += 2, read += 2) {
 		__m128i hdls0 = _mm_load_si128(&ioat->hdls[read & mask]);
 		__m128i hdls1 = _mm_load_si128(&ioat->hdls[(read + 1) & mask]);
@@ -223,8 +233,6 @@ rte_ioat_completed_copies(int dev_id, uint8_t max_copies,
 		dst_hdls[i] = hdls[1];
 	}
 
-	ioat->next_read = read;
-	ioat->completed += count;
 	return count;
 }
 
-- 
2.27.0


             reply	other threads:[~2020-07-13  7:21 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-13  7:15 Cheng Jiang [this message]
2020-07-13  9:31 ` Bruce Richardson
2020-07-13  9:55 ` Bruce Richardson
2020-07-13  9:59   ` Bruce Richardson
2020-07-13 13:28 ` Bruce Richardson
2020-07-14 10:45   ` Jiang, Cheng1
2020-07-15  2:16 ` [dpdk-dev] [PATCH 20.11 v2] raw/ioat: add " Cheng Jiang
2020-07-17 12:49   ` Bruce Richardson
2020-07-21 10:15     ` Bruce Richardson

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200713071519.110662-1-Cheng1.jiang@intel.com \
    --to=cheng1.jiang@intel.com \
    --cc=bruce.richardson@intel.com \
    --cc=dev@dpdk.org \
    --cc=patrick.fu@intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

DPDK patches and discussions

This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://inbox.dpdk.org/dev/0 dev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 dev dev/ https://inbox.dpdk.org/dev \
		dev@dpdk.org
	public-inbox-index dev

Example config snippet for mirrors.
Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git