From: Faizal Rahim <faizal.abdul.rahim@linux.intel.com>
To: Tony Nguyen <anthony.l.nguyen@intel.com>,
Przemek Kitszel <przemyslaw.kitszel@intel.com>,
Andrew Lunn <andrew+netdev@lunn.ch>,
"David S . Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Jesper Dangaard Brouer <hawk@kernel.org>,
John Fastabend <john.fastabend@gmail.com>,
Vinicius Costa Gomes <vinicius.gomes@intel.com>
Cc: Faizal Rahim <faizal.abdul.rahim@linux.intel.com>,
intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, bpf@vger.kernel.org
Subject: [PATCH iwl-next 2/9] igc: Optimize the TX packet buffer utilization
Date: Mon, 16 Dec 2024 01:47:13 -0500 [thread overview]
Message-ID: <20241216064720.931522-3-faizal.abdul.rahim@linux.intel.com> (raw)
In-Reply-To: <20241216064720.931522-1-faizal.abdul.rahim@linux.intel.com>
From: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Packet buffers (RX + TX) total 64KB. Neither RX or TX buffers can be
larger than 34KB. So divide the buffer equally, 32KB for each.
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: Faizal Rahim <faizal.abdul.rahim@linux.intel.com>
---
drivers/net/ethernet/intel/igc/igc_defines.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/intel/igc/igc_defines.h b/drivers/net/ethernet/intel/igc/igc_defines.h
index 8e449904aa7d..1f63a523faf2 100644
--- a/drivers/net/ethernet/intel/igc/igc_defines.h
+++ b/drivers/net/ethernet/intel/igc/igc_defines.h
@@ -400,7 +400,7 @@
#define I225_TXPBSIZE_DEFAULT 0x04000014 /* TXPBSIZE default */
#define IGC_RXPBS_CFG_TS_EN 0x80000000 /* Timestamp in Rx buffer */
-#define IGC_TXPBSIZE_TSN 0x04145145 /* 5k bytes buffer for each queue */
+#define IGC_TXPBSIZE_TSN 0x041c71c7 /* 7k bytes buffer for each queue + 4KB for BMC*/
#define IGC_DTXMXPKTSZ_TSN 0x19 /* 1600 bytes of max TX DMA packet size */
#define IGC_DTXMXPKTSZ_DEFAULT 0x98 /* 9728-byte Jumbo frames */
--
2.25.1
next prev parent reply other threads:[~2024-12-16 6:48 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-16 6:47 [PATCH iwl-next 0/9] igc: Add support for Frame Preemption feature in IGC Faizal Rahim
2024-12-16 6:47 ` [PATCH iwl-next 1/9] igc: Rename xdp_get_tx_ring() for non-xdp usage Faizal Rahim
2024-12-16 6:47 ` Faizal Rahim [this message]
2024-12-16 6:47 ` [PATCH iwl-next 3/9] igc: Set the RX packet buffer size for TSN mode Faizal Rahim
2024-12-16 6:47 ` [PATCH iwl-next 4/9] igc: Add support for receiving frames with all zeroes address Faizal Rahim
2024-12-16 17:26 ` Vladimir Oltean
2024-12-16 6:47 ` [PATCH iwl-next 5/9] igc: Add support to set MAC Merge data via ethtool Faizal Rahim
2024-12-16 18:13 ` Vladimir Oltean
2024-12-17 0:39 ` Vladimir Oltean
2024-12-23 9:23 ` Abdul Rahim, Faizal
2024-12-23 21:43 ` Vladimir Oltean
2024-12-16 6:47 ` [PATCH iwl-next 6/9] igc: Add support for frame preemption verification Faizal Rahim
2024-12-17 0:22 ` Vladimir Oltean
2024-12-17 8:46 ` Vladimir Oltean
2024-12-17 9:47 ` Abdul Rahim, Faizal
2024-12-17 12:09 ` Furong Xu
2024-12-19 7:24 ` Choong Yong Liang
2024-12-23 9:32 ` Abdul Rahim, Faizal
2024-12-16 6:47 ` [PATCH iwl-next 7/9] igc: Add support for preemptible traffic class in taprio Faizal Rahim
2024-12-16 6:47 ` [PATCH iwl-next 8/9] igc: Add support to get MAC Merge data via ethtool Faizal Rahim
2024-12-17 0:35 ` Vladimir Oltean
2024-12-23 9:39 ` Abdul Rahim, Faizal
2024-12-16 6:47 ` [PATCH iwl-next 9/9] igc: Add support to get frame preemption statistics " Faizal Rahim
2024-12-16 16:05 ` Vladimir Oltean
2024-12-23 9:52 ` Abdul Rahim, Faizal
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=20241216064720.931522-3-faizal.abdul.rahim@linux.intel.com \
--to=faizal.abdul.rahim@linux.intel.com \
--cc=andrew+netdev@lunn.ch \
--cc=anthony.l.nguyen@intel.com \
--cc=ast@kernel.org \
--cc=bpf@vger.kernel.org \
--cc=daniel@iogearbox.net \
--cc=davem@davemloft.net \
--cc=edumazet@google.com \
--cc=hawk@kernel.org \
--cc=intel-wired-lan@lists.osuosl.org \
--cc=john.fastabend@gmail.com \
--cc=kuba@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=pabeni@redhat.com \
--cc=przemyslaw.kitszel@intel.com \
--cc=vinicius.gomes@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
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).