
Chapter XXIV. DPDK Driver
Chelsio Unified Wire for Linux
338
5.3.
Unbinding Network Ports
i. Run the following command to unbind network ports from DPDK environment:
[root@host~]# dpdk-devbind.py --unbind <PCI-ID-PF4/VF-PCI-ID>
ii. Run the following command to verify:
[root@host~]# dpdk-devbind.py --status
Example:
5.4.
Performance Tuning
In order to auto tune the system for best performance, Chelsio recommends:
•
Disabling virtualization, c-state technology, Intel I/O AT and SR-IOV in the BIOS settings.
•
Setting the Power Profile to Maximum Performance in BIOS settings.
•
Installing the adapter into a PCIe Gen3 x8/x16 slot.
•
Allocating required number of mbufs in the application based on the below formula.
nb_mbufs = ((2 * nb_tx_desc * nb_tx_q) + (nb_rx_desc * nb_rx_q)) * nb_ports
Where,
nb_mbufs
: Number of mbufs
nb_tx_desc
: Number of Tx descriptors
nb_rx_desc
: Number of Rx descriptors
nb_tx_q
: Number of Tx queues
nb_rx_q
: Number of Rx queues
nb_ports
: Number of ports
•
Using traffic with multiple tuples. The 'range' option of DPDK-Pktgen app can be used to
create traffic with different 4-tuple values, to take advantage of RSS and hence, allow the
traffic to be distributed across different queues/CPUs in Rx direction.
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Страница 15: ...Chapter I Chelsio Unified Wire Chelsio Unified Wire for Linux 15 I Chelsio Unified Wire...
Страница 51: ...Chapter II Network NIC TOE Chelsio Unified Wire for Linux 51 II Network NIC TOE...
Страница 70: ...Chapter III Virtual Function Network vNIC Chelsio Unified Wire for Linux 70 III Virtual Function Network vNIC...
Страница 82: ...Chapter IV iWARP RDMA Chelsio Unified Wire for Linux 82 IV iWARP RDMA...
Страница 99: ...Chapter V iSER Chelsio Unified Wire for Linux 99 V iSER...
Страница 107: ...Chapter VI WD UDP Chelsio Unified Wire for Linux 107 VI WD UDP...
Страница 119: ...Chapter VII WD TOE Chelsio Unified Wire for Linux 119 VII WD TOE...
Страница 125: ...Chapter VIII NVMe oF Chelsio Unified Wire for Linux 125 VIII NVMe oF...
Страница 135: ...Chapter IX LIO iSCSI Target Offload Chelsio Unified Wire for Linux 135 IX LIO iSCSI Target Offload...
Страница 148: ...Chapter X iSCSI PDU Offload Target Chelsio Unified Wire for Linux 148 X iSCSI PDU Offload Target...
Страница 187: ...Chapter XI iSCSI PDU Offload Initiator Chelsio Unified Wire for Linux 187 XI iSCSI PDU Offload Initiator...
Страница 198: ...Chapter XII Crypto Offload Chelsio Unified Wire for Linux 198 XII Crypto Offload...
Страница 211: ...Chapter XIII Data Center Bridging DCB Chelsio Unified Wire for Linux 211 XIII Data Center Bridging DCB...
Страница 223: ...Chapter XIV FCoE Full Offload Initiator Chelsio Unified Wire for Linux 223 XIV FCoE Full Offload Initiator...
Страница 230: ...Chapter XIV FCoE Full Offload Initiator Chelsio Unified Wire for Linux 230...
Страница 235: ...Chapter XV Offload Bonding Chelsio Unified Wire for Linux 235 XV Offload Bonding...
Страница 258: ...Chapter XVIII Offload IPv6 Chelsio Unified Wire for Linux 258 XVIII Offload IPv6...
Страница 265: ...Chapter XIX WD Sniffing and Tracing Chelsio Unified Wire for Linux 265 XIX WD Sniffing and Tracing...
Страница 272: ...Chapter XX Classification and Filtering Chelsio Unified Wire for Linux 272 XX Classification and Filtering...
Страница 297: ...Chapter XXI OVS Kernel Datapath Offload Chelsio Unified Wire for Linux 297 XXI OVS Kernel Datapath Offload...
Страница 311: ...Chapter XXII Ring Backbone Chelsio Unified Wire for Linux 311 XXII Ring Backbone...
Страница 317: ...Chapter XXIII Traffic Management Chelsio Unified Wire for Linux 317 XXIII Traffic Management...
Страница 329: ...Chapter XXIV DPDK Driver Chelsio Unified Wire for Linux 329 XXIV DPDK Driver...
Страница 347: ...Chapter XXV Unified Boot Chelsio Unified Wire for Linux 347 XXV Unified Boot...
Страница 357: ...Chapter XXV Unified Boot Chelsio Unified Wire for Linux 357 iv Boot to EFI Shell...
Страница 427: ...Chapter XXVI Appendix A Chelsio Unified Wire for Linux 427 XXVI Appendix A...