Visible to Intel only — GUID: cfp1480557430715
Ixiasoft
Visible to Intel only — GUID: cfp1480557430715
Ixiasoft
1.3.7. PCIe Gen1/Gen2/Gen3 Hard IP Block
The PCIe Hard IP is an IP block that provides multiple layers of the protocol stack for PCI Express. The Intel® Stratix® 10 Hard IP for PCIe is a complete PCIe solution that includes the Transaction, Data Link, and PHY/MAC layers. The Hard IP solution contains dedicated hard logic that connects to the transceiver PHY interface. Each transceiver tile contains a PCIe Hard IP block supporting PCIe Gen1, Gen2, or Gen3 protocols with x1, x2, x4, x8, and x16 configurations. x1, x2, and x4 configurations result in unusable channels. The Hard IP resides at the bottom of the tile, and is 16 channels high. Additionally, the block includes extensible VF (Virtual Functions) interface to enable implementation of up to 2K VFs via the SRIOV-w (Single-Root I/O Virtualization) bridge. The following table and figure show the possible PCIe Hard IP channel configurations, the number of unusable channels, and the number of channels available for other protocols.
PCIe Hard IP Configuration | Number of Unusable Channels | Number of Channels Available for Other Protocols |
---|---|---|
PCIe x1 | 7 | 16 (4 for Intel® Stratix® 10 GX 10M devices) |
PCIe x2 | 6 | 16 (4 for Intel® Stratix® 10 GX 10M devices) |
PCIe x4 | 4 | 16 (4 for Intel® Stratix® 10 GX 10M devices) |
PCIe x8 | 0 | 16 (4 for Intel® Stratix® 10 GX 10M devices) |
PCIe x16 | 0 | 8 |
The table below maps all transceiver channels to PCIe Hard IP channels in available tiles.
Tile Channel Sequence | PCIe Hard IP Channel | Index within I/O Bank | Bottom Left Tile Bank Number | Top Left Tile Bank Number | Bottom Right Tile Bank Number | Top Right Tile Bank Number |
---|---|---|---|---|---|---|
11 | — | 4 | 1EU10 | 1MU12 | 1EU20 | 1MU22 |
10 | — | 3 | 1EU10 | 1MU12 | 1EU20 | 1MU22 |
9 | — | 1 | 1EU10 | 1MU12 | 1EU20 | 1MU22 |
8 | — | 0 | 1EU10 | 1MU12 | 1EU20 | 1MU22 |
7 | 7 | 1 | 1DU10 | 1LU12 | 1DU20 | 1LU22 |
6 | 6 | 0 | 1DU10 | 1LU12 | 1DU20 | 1LU22 |
5 | 5 | 5 | 1CU10 | 1KU12 | 1CU20 | 1KU22 |
4 | 4 | 4 | 1CU10 | 1KU12 | 1CU20 | 1KU22 |
3 | 3 | 3 | 1CU10 | 1KU12 | 1CU20 | 1KU22 |
2 | 2 | 2 | 1CU10 | 1KU12 | 1CU20 | 1KU22 |
1 | 1 | 1 | 1CU10 | 1KU12 | 1CU20 | 1KU22 |
0 | 0 | 0 | 1CU10 | 1KU12 | 1CU20 | 1KU22 |
Tile Channel Sequence | PCIe Hard IP Channel | Index within I/O Bank | Bottom Left Tile Bank Number | Top Left Tile Bank Number | Bottom Right Tile Bank Number | Top Right Tile Bank Number |
---|---|---|---|---|---|---|
23 | — | 5 | 1F | 1N | 4F | 4N |
22 | — | 4 | 1F | 1N | 4F | 4N |
21 | — | 3 | 1F | 1N | 4F | 4N |
20 | — | 2 | 1F | 1N | 4F | 4N |
19 | — | 1 | 1F | 1N | 4F | 4N |
18 | — | 0 | 1F | 1N | 4F | 4N |
17 | — | 5 | 1E | 1M | 4E | 4M |
16 | — | 4 | 1E | 1M | 4E | 4M |
15 | 15 | 3 | 1E | 1M | 4E | 4M |
14 | 14 | 2 | 1E | 1M | 4E | 4M |
13 | 13 | 1 | 1E | 1M | 4E | 4M |
12 | 12 | 0 | 1E | 1M | 4E | 4M |
11 | 11 | 5 | 1D | 1L | 4D | 4L |
10 | 10 | 4 | 1D | 1L | 4D | 4L |
9 | 9 | 3 | 1D | 1L | 4D | 4L |
8 | 8 | 2 | 1D | 1L | 4D | 4L |
7 | 7 | 1 | 1D | 1L | 4D | 4L |
6 | 6 | 0 | 1D | 1L | 4D | 4L |
5 | 5 | 5 | 1C | 1K | 4C | 4K |
4 | 4 | 4 | 1C | 1K | 4C | 4K |
3 | 3 | 3 | 1C | 1K | 4C | 4K |
2 | 2 | 2 | 1C | 1K | 4C | 4K |
1 | 1 | 1 | 1C | 1K | 4C | 4K |
0 | 0 | 0 | 1C | 1K | 4C | 4K |
The PCIe Hard IP block includes extensible VF (Virtual Functions) interface to enable the implementation of up to 2K VFs via the SRIOV-2 (Single-Root I/O Virtualization) bridge.
In network virtualization, single root input/output virtualization or SR-IOV is a network interface that allows the isolation of the PCI Express resources for manageability and performance reasons. A single physical PCI Express is shared on a virtual environment using the SR-IOV specification. The SR-IOV specification offers different virtual functions to different virtual components, such as a network adapter, on a physical server machine.