diff mbox series

[1/2] doc: clarify the existing net/ark guide

Message ID 20230213195825.2934483-1-shepard.siegel@atomicrules.com (mailing list archive)
State Accepted, archived
Delegated to: Ferruh Yigit
Headers
Series [1/2] doc: clarify the existing net/ark guide |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Shepard Siegel Feb. 13, 2023, 7:58 p.m. UTC 
  Add detail for the existing Arkville configurations FX0 and FX1.
Corrected minor errors of omission.

Signed-off-by: Shepard Siegel <shepard.siegel@atomicrules.com>
---
 doc/guides/nics/ark.rst | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

Comments

Ferruh Yigit Feb. 13, 2023, 11:39 p.m. UTC | #1 
On 2/13/2023 7:58 PM, Shepard Siegel wrote:
> Add detail for the existing Arkville configurations FX0 and FX1.
> Corrected minor errors of omission.
> 
> Signed-off-by: Shepard Siegel <shepard.siegel@atomicrules.com>


Series applied to dpdk-next-net/main, thanks.
diff mbox series

Patch

diff --git a/doc/guides/nics/ark.rst b/doc/guides/nics/ark.rst
index ba00f14e80..14fedbf252 100644
--- a/doc/guides/nics/ark.rst
+++ b/doc/guides/nics/ark.rst
@@ -52,6 +52,10 @@  board. While specific capabilities such as number of physical
 hardware queue-pairs are negotiated; the driver is designed to
 remain constant over a broad and extendable feature set.
 
+* FPGA Vendors Supported: AMD/Xilinx and Intel
+* Number of RX/TX Queue-Pairs: up to 128
+* PCIe Endpoint Technology: Gen3, Gen4, Gen5
+
 Intentionally, Arkville by itself DOES NOT provide common NIC
 capabilities such as offload or receive-side scaling (RSS).
 These capabilities would be viewed as a gate-level "tax" on
@@ -73,7 +77,7 @@  between the user's FPGA application and the existing DPDK features via
 the PMD.
 
 Device Parameters
--------------------
+-----------------
 
 The ARK PMD supports device parameters that are used for packet
 routing and for internal packet generation and packet checking.  This
@@ -303,6 +307,18 @@  ARK PMD supports the following Arkville RTL PCIe instances including:
 * ``1d6c:101e`` - AR-ARKA-FX1 [Arkville 64B DPDK Data Mover for Agilex R-Tile]
 * ``1d6c:101f`` - AR-TK242 [2x100GbE Packet Capture Device]
 
+Arkville RTL Core Configurations
+--------------------------------
+
+Arkville's RTL core may be configured by the user with different
+datapath widths to balance throughput against FPGA logic area. The ARK PMD
+has introspection on the RTL core configuration and acts accordingly.
+All Arkville configurations present identical RTL user-facing AXI stream
+interfaces for both AMD/Xilinx and Intel FPGAs.
+
+* ARK-FX0 - 256-bit 32B datapath (PCIe Gen3, Gen4)
+* ARK-FX1 - 512-bit 64B datapath (PCIe Gen3, Gen4, Gen5)
+
 DPDK and Arkville Firmware Versioning
 -------------------------------------
 
@@ -334,6 +350,8 @@  Supported Features
 ------------------
 
 * Dynamic ARK PMD extensions
+* Dynamic per-queue MBUF (re)sizing up to 32KB
+* SR-IOV, VF-based queue-segregation
 * Multiple receive and transmit queues
 * Jumbo frames up to 9K
 * Hardware Statistics