Document new external ONNX model and linalg operator test suites. (#18819) Progress on https://github.com/iree-org/iree-test-suites/issues/2 and https://github.com/iree-org/iree-test-suites/issues/6 .

diff --git a/docs/website/docs/developers/debugging/model-development.md b/docs/website/docs/developers/debugging/model-development.md
index ea7bbba..c7ba61a 100644
--- a/docs/website/docs/developers/debugging/model-development.md
+++ b/docs/website/docs/developers/debugging/model-development.md

@@ -147,7 +147,7 @@
 Some existing test suites can be found at these locations:
 
 * <https://github.com/iree-org/iree/tree/main/tests/e2e>
-* <https://github.com/nod-ai/SHARK-TestSuite/tree/main/iree_tests/onnx/node/generated>
+* <https://github.com/iree-org/iree-test-suites>
 * <https://github.com/nod-ai/SHARK-TestSuite/tree/main/e2eshark/onnx/operators>
 * <https://github.com/nod-ai/SHARK-TestSuite/tree/main/e2eshark/pytorch/operators>
 * <https://github.com/openxla/stablehlo/tree/main/stablehlo/tests/interpret>

diff --git a/docs/website/docs/developers/general/testing-guide.md b/docs/website/docs/developers/general/testing-guide.md
index 070085d..50957e2 100644
--- a/docs/website/docs/developers/general/testing-guide.md
+++ b/docs/website/docs/developers/general/testing-guide.md

@@ -412,6 +412,18 @@
 tests are planned to be migrated into
 [iree-org/iree-test-suites](https://github.com/iree-org/iree-test-suites).
 
+### linalg operator tests
+
+Tests for operators in the MLIR linalg dialect like `matmul`, and `convolution`
+are being migrated from folders like
+[`tests/e2e/matmul/`](https://github.com/iree-org/iree/tree/main/tests/e2e/matmul)
+in the
+[iree-org/iree](https://github.com/iree-org/iree) repository to
+[`linalg_ops/`](https://github.com/iree-org/iree-test-suites/tree/main/linalg_ops)
+in the
+[iree-org/iree-test-suites](https://github.com/iree-org/iree-test-suites)
+repository.
+
 ### ONNX operator tests
 
 Tests for individual ONNX operators are included at
@@ -483,3 +495,12 @@
 committed:
 
 ![image](https://github.com/user-attachments/assets/b5dbdcb4-4c0a-4ff2-adc6-9021614179b2)
+
+### ONNX model tests
+
+Tests for ONNX models are included at
+[`onnx_models/`](https://github.com/iree-org/iree-test-suites/tree/main/onnx_models)
+in the
+[iree-org/iree-test-suites](https://github.com/iree-org/iree-test-suites)
+repository. These tests use models from the upstream
+[onnx/models](https://github.com/onnx/models) repository.

diff --git a/docs/website/docs/guides/ml-frameworks/onnx.md b/docs/website/docs/guides/ml-frameworks/onnx.md
index 5abe011..d2dda65 100644
--- a/docs/website/docs/guides/ml-frameworks/onnx.md
+++ b/docs/website/docs/guides/ml-frameworks/onnx.md

@@ -118,7 +118,8 @@
 | Code samples |  |
 | -- | -- |
 Generated op tests | [iree-test-suites `onnx_ops`](https://github.com/iree-org/iree-test-suites/tree/main/onnx_ops)
-Curated op and model tests | [SHARK-TestSuite `e2eshark/onnx`](https://github.com/nod-ai/SHARK-TestSuite/tree/main/e2eshark/onnx)
+Public model tests | [iree-test-suites `onnx_models`](https://github.com/iree-org/iree-test-suites/tree/main/onnx_models)
+Curated op and model tests | SHARK-TestSuite [`e2eshark/onnx`](https://github.com/nod-ai/SHARK-TestSuite/tree/main/e2eshark/onnx) and [`alt_e2eshark/onnx_tests`](https://github.com/nod-ai/SHARK-TestSuite/tree/main/alt_e2eshark/onnx_tests)
 Importer tests | [torch-mlir `test/python/onnx_importer`](https://github.com/llvm/torch-mlir/tree/main/test/python/onnx_importer)
 
 ## :octicons-question-16: Troubleshooting