From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Chen Jing D(Mark)" Subject: =?utf-8?q?=5BPATCH_1/2=5D_doc=3A_update_programmers_gu?= =?utf-8?q?ide_for_fm10k_pmd_driver?= Date: Fri, 6 Mar 2015 14:39:45 +0800 Message-ID: <1425623986-15465-1-git-send-email-jing.d.chen@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable To: dev-VfR2kkLFssw@public.gmane.org Return-path: List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces-VfR2kkLFssw@public.gmane.org Sender: "dev" From: "Chen Jing D(Mark)" DPDK introduced pmd driver for PCIE host-interface of Intel Ethernet Switch FM10000 Series, update programming guide to describe the new driver and usage. Signed-off-by: Chen Jing D(Mark) --- .../prog_guide/i40e_ixgbe_igb_virt_func_drv.rst | 37 ++++++++++++++= ++++- doc/guides/prog_guide/source_org.rst | 1 + 2 files changed, 36 insertions(+), 2 deletions(-) diff --git a/doc/guides/prog_guide/i40e_ixgbe_igb_virt_func_drv.rst b/doc= /guides/prog_guide/i40e_ixgbe_igb_virt_func_drv.rst index 41e316e..8ea518d 100755 --- a/doc/guides/prog_guide/i40e_ixgbe_igb_virt_func_drv.rst +++ b/doc/guides/prog_guide/i40e_ixgbe_igb_virt_func_drv.rst @@ -53,9 +53,10 @@ Refer to Figure 10. =20 Therefore, a NIC is logically distributed among multiple virtual machine= s (as shown in Figure 10), while still having global data in common to share with the Physical Func= tion and other Virtual Functions. -The DPDK i40evf, igbvf or ixgbevf as a Poll Mode Driver (PMD) serves for= the Intel=C2=AE 82576 Gigabit Ethernet Controller, +The DPDK fm10kvf, i40evf, igbvf or ixgbevf as a Poll Mode Driver (PMD) s= erves for the Intel=C2=AE 82576 Gigabit Ethernet Controller, Intel=C2=AE Ethernet Controller I350 family, Intel=C2=AE 82599 10 Gigabi= t Ethernet Controller NIC, -or Intel=C2=AE Fortville 10/40 Gigabit Ethernet Controller NIC's virtual= PCI function. +Intel=C2=AE Fortville 10/40 Gigabit Ethernet Controller NIC's virtual PC= I function,or PCIE host-interface of the Intel Ethernet Switch +FM10000 Series. Meanwhile the DPDK Poll Mode Driver (PMD) also supports "Physical Functi= on" of such NIC's on the host. =20 The DPDK PF/VF Poll Mode Driver (PMD) supports the Layer 2 switch on Int= el=C2=AE 82576 Gigabit Ethernet Controller, @@ -93,6 +94,38 @@ and the Physical Function operates on the global resou= rces on behalf of the Virt For this out-of-band communication, an SR-IOV enabled NIC provides a mem= ory buffer for each Virtual Function, which is called a "Mailbox". =20 + +The PCIE host-interface of Intel Ethernet Switch FM10000 Series VF infra= structure +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +In a virtualized environment, the programmer can enable a maximum of *64= Virtual Functions (VF)* +globally per PCIE host-interface of the Intel Ethernet Switch FM10000 Se= ries device. +Each VF can have a maximum of 16 queue pairs. +The Physical Function in host could be only configured by the Linux* fm1= 0k driver +(in the case of the Linux Kernel-based Virtual Machine [KVM]), DPDK PMD = PF driver doesn't support it yet. + +For example, + +* Using Linux* fm10k driver: + + .. code-block:: console + + rmmod fm10k (To remove the fm10k module) + insmod fm0k.ko max_vfs=3D2,2 (To enable two Virtual Functions pe= r port) + +Virtual Function enumeration is performed in the following sequence by t= he Linux* pci driver for a dual-port NIC. +When you enable the four Virtual Functions with the above command, the f= our enabled functions have a Function# +represented by (Bus#, Device#, Function#) in sequence starting from 0 to= 3. +However: + +* Virtual Functions 0 and 2 belong to Physical Function 0 + +* Virtual Functions 1 and 3 belong to Physical Function 1 + +.. note:: + + The above is an important consideration to take into account when ta= rgeting specific packets to a selected port. + Intel=C2=AE Fortville 10/40 Gigabit Ethernet Controller VF Infrastructur= e ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ =20 diff --git a/doc/guides/prog_guide/source_org.rst b/doc/guides/prog_guide= /source_org.rst index c66ad16..061f107 100644 --- a/doc/guides/prog_guide/source_org.rst +++ b/doc/guides/prog_guide/source_org.rst @@ -81,6 +81,7 @@ The lib directory contains:: +-- librte_net # various IP-related headers +-- librte_pmd_bond # bonding poll mode driver +-- librte_pmd_e1000 # 1GbE poll mode drivers (igb and em) + +-- librte_pmd_fm10k # Host interface PMD driver for FM10000 Seri= es +-- librte_pmd_ixgbe # 10GbE poll mode driver +-- librte_pmd_i40e # 40GbE poll mode driver +-- librte_pmd_mlx4 # Mellanox ConnectX-3 poll mode driver --=20 1.7.7.6