doc: Add NICs known to support ovs offload

Add cards to the known-to-work list as requested in a bug report.

Change-Id: I2dc1c36df5610d8927c3de3675fb186f5ea2e462
Closes-Bug: #1807421

doc/source/admin/config-ovs-offload.rst

@@ -49,6 +49,8 @@ The following manufacturers are known to work:
 
 - Mellanox ConnectX-4 NIC (VLAN Offload)
 - Mellanox ConnectX-4 Lx/ConnectX-5 NICs (VLAN/VXLAN Offload)
+- Broadcom NetXtreme-S series NICs
+- Broadcom NetXtreme-E series NICs
 
 For information on **Mellanox Ethernet Cards**, see
 `Mellanox: Ethernet Cards - Overview
@@ -60,7 +62,7 @@ Prerequisites
 - Linux Kernel >= 4.13
 - Open vSwitch >= 2.8
 - iproute >= 4.12
-- Mellanox NIC
+- Mellanox or Broadcom NIC
 
     .. note:: Mellanox NIC FW that supports Open vSwitch hardware offloading:
 

doc/source/admin/config-sriov.rst

@@ -62,6 +62,7 @@ The following manufacturers are known to work:
 - Intel
 - Mellanox
 - QLogic
+- Broadcom
 
 For information on **Mellanox SR-IOV Ethernet ConnectX-3/ConnectX-3 Pro cards**, see
 `Mellanox: How To Configure SR-IOV VFs
@@ -71,6 +72,14 @@ For information on **QLogic SR-IOV Ethernet cards**, see
 `User's Guide OpenStack Deployment with SR-IOV Configuration
 <http://www.qlogic.com/solutions/Documents/UsersGuide_OpenStack_SR-IOV.pdf>`_.
 
+For information on **Broadcom NetXtreme-E Series Ethernet cards**, see the
+`Broadcom NetXtreme-C/NetXtreme-E User Guide
+<https://docs.broadcom.com/docs/NetXtreme-UG>`_.
+
+For information on **Broadcom NetXtreme-S Series Ethernet cards**, see the
+`Broadcom NetXtreme-S Product Page
+<https://www.broadcom.com/products/ethernet-connectivity/smartnic/bcm58800>`_.
+
 Using SR-IOV interfaces
 ~~~~~~~~~~~~~~~~~~~~~~~