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-rw-r--r--debian/patches/features/all/ethernet-microsoft/0028-net-mana-Configure-hwc-timeout-from-hardware.patch217
1 files changed, 217 insertions, 0 deletions
diff --git a/debian/patches/features/all/ethernet-microsoft/0028-net-mana-Configure-hwc-timeout-from-hardware.patch b/debian/patches/features/all/ethernet-microsoft/0028-net-mana-Configure-hwc-timeout-from-hardware.patch
new file mode 100644
index 000000000..b5c24df16
--- /dev/null
+++ b/debian/patches/features/all/ethernet-microsoft/0028-net-mana-Configure-hwc-timeout-from-hardware.patch
@@ -0,0 +1,217 @@
+From 4c91517cbcdd16c2a9aee0e21066f2f1aa193ece Mon Sep 17 00:00:00 2001
+From: Souradeep Chakrabarti <schakrabarti@linux.microsoft.com>
+Date: Wed, 2 Aug 2023 04:07:40 -0700
+Subject: [PATCH 28/30] net: mana: Configure hwc timeout from hardware
+
+At present hwc timeout value is a fixed value. This patch sets the hwc
+timeout from the hardware. It now uses a new hardware capability
+GDMA_DRV_CAP_FLAG_1_HWC_TIMEOUT_RECONFIG to query and set the value
+in hwc_timeout.
+
+Signed-off-by: Souradeep Chakrabarti <schakrabarti@linux.microsoft.com>
+Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+(cherry picked from commit 62c1bff593b7e30041d0273b835af9fd6f5ee737)
+Signed-off-by: Bastian Blank <waldi@debian.org>
+---
+ .../net/ethernet/microsoft/mana/gdma_main.c | 30 ++++++++++++++++++-
+ .../net/ethernet/microsoft/mana/hw_channel.c | 24 ++++++++++++++-
+ include/net/mana/gdma.h | 20 ++++++++++++-
+ include/net/mana/hw_channel.h | 5 ++++
+ 4 files changed, 76 insertions(+), 3 deletions(-)
+
+diff --git a/drivers/net/ethernet/microsoft/mana/gdma_main.c b/drivers/net/ethernet/microsoft/mana/gdma_main.c
+index 6108a481edcb..4fa1901a2789 100644
+--- a/drivers/net/ethernet/microsoft/mana/gdma_main.c
++++ b/drivers/net/ethernet/microsoft/mana/gdma_main.c
+@@ -106,6 +106,25 @@ static int mana_gd_query_max_resources(struct pci_dev *pdev)
+ return 0;
+ }
+
++static int mana_gd_query_hwc_timeout(struct pci_dev *pdev, u32 *timeout_val)
++{
++ struct gdma_context *gc = pci_get_drvdata(pdev);
++ struct gdma_query_hwc_timeout_resp resp = {};
++ struct gdma_query_hwc_timeout_req req = {};
++ int err;
++
++ mana_gd_init_req_hdr(&req.hdr, GDMA_QUERY_HWC_TIMEOUT,
++ sizeof(req), sizeof(resp));
++ req.timeout_ms = *timeout_val;
++ err = mana_gd_send_request(gc, sizeof(req), &req, sizeof(resp), &resp);
++ if (err || resp.hdr.status)
++ return err ? err : -EPROTO;
++
++ *timeout_val = resp.timeout_ms;
++
++ return 0;
++}
++
+ static int mana_gd_detect_devices(struct pci_dev *pdev)
+ {
+ struct gdma_context *gc = pci_get_drvdata(pdev);
+@@ -883,8 +902,10 @@ int mana_gd_verify_vf_version(struct pci_dev *pdev)
+ struct gdma_context *gc = pci_get_drvdata(pdev);
+ struct gdma_verify_ver_resp resp = {};
+ struct gdma_verify_ver_req req = {};
++ struct hw_channel_context *hwc;
+ int err;
+
++ hwc = gc->hwc.driver_data;
+ mana_gd_init_req_hdr(&req.hdr, GDMA_VERIFY_VF_DRIVER_VERSION,
+ sizeof(req), sizeof(resp));
+
+@@ -911,7 +932,14 @@ int mana_gd_verify_vf_version(struct pci_dev *pdev)
+ err, resp.hdr.status);
+ return err ? err : -EPROTO;
+ }
+-
++ if (resp.pf_cap_flags1 & GDMA_DRV_CAP_FLAG_1_HWC_TIMEOUT_RECONFIG) {
++ err = mana_gd_query_hwc_timeout(pdev, &hwc->hwc_timeout);
++ if (err) {
++ dev_err(gc->dev, "Failed to set the hwc timeout %d\n", err);
++ return err;
++ }
++ dev_dbg(gc->dev, "set the hwc timeout to %u\n", hwc->hwc_timeout);
++ }
+ return 0;
+ }
+
+diff --git a/drivers/net/ethernet/microsoft/mana/hw_channel.c b/drivers/net/ethernet/microsoft/mana/hw_channel.c
+index 2bd1d74021f7..9d1cd3bfcf66 100644
+--- a/drivers/net/ethernet/microsoft/mana/hw_channel.c
++++ b/drivers/net/ethernet/microsoft/mana/hw_channel.c
+@@ -174,7 +174,25 @@ static void mana_hwc_init_event_handler(void *ctx, struct gdma_queue *q_self,
+ complete(&hwc->hwc_init_eqe_comp);
+ break;
+
++ case GDMA_EQE_HWC_SOC_RECONFIG_DATA:
++ type_data.as_uint32 = event->details[0];
++ type = type_data.type;
++ val = type_data.value;
++
++ switch (type) {
++ case HWC_DATA_CFG_HWC_TIMEOUT:
++ hwc->hwc_timeout = val;
++ break;
++
++ default:
++ dev_warn(hwc->dev, "Received unknown reconfig type %u\n", type);
++ break;
++ }
++
++ break;
++
+ default:
++ dev_warn(hwc->dev, "Received unknown gdma event %u\n", event->type);
+ /* Ignore unknown events, which should never happen. */
+ break;
+ }
+@@ -696,6 +714,7 @@ int mana_hwc_create_channel(struct gdma_context *gc)
+ gd->driver_data = hwc;
+ hwc->gdma_dev = gd;
+ hwc->dev = gc->dev;
++ hwc->hwc_timeout = HW_CHANNEL_WAIT_RESOURCE_TIMEOUT_MS;
+
+ /* HWC's instance number is always 0. */
+ gd->dev_id.as_uint32 = 0;
+@@ -770,6 +789,8 @@ void mana_hwc_destroy_channel(struct gdma_context *gc)
+ hwc->gdma_dev->doorbell = INVALID_DOORBELL;
+ hwc->gdma_dev->pdid = INVALID_PDID;
+
++ hwc->hwc_timeout = 0;
++
+ kfree(hwc);
+ gc->hwc.driver_data = NULL;
+ gc->hwc.gdma_context = NULL;
+@@ -825,7 +846,8 @@ int mana_hwc_send_request(struct hw_channel_context *hwc, u32 req_len,
+ goto out;
+ }
+
+- if (!wait_for_completion_timeout(&ctx->comp_event, 30 * HZ)) {
++ if (!wait_for_completion_timeout(&ctx->comp_event,
++ (msecs_to_jiffies(hwc->hwc_timeout) * HZ))) {
+ dev_err(hwc->dev, "HWC: Request timed out!\n");
+ err = -ETIMEDOUT;
+ goto out;
+diff --git a/include/net/mana/gdma.h b/include/net/mana/gdma.h
+index b27bf852471b..102bb73c7a4f 100644
+--- a/include/net/mana/gdma.h
++++ b/include/net/mana/gdma.h
+@@ -31,6 +31,7 @@ enum gdma_request_type {
+ GDMA_DESTROY_PD = 30,
+ GDMA_CREATE_MR = 31,
+ GDMA_DESTROY_MR = 32,
++ GDMA_QUERY_HWC_TIMEOUT = 84, /* 0x54 */
+ };
+
+ enum gdma_queue_type {
+@@ -53,6 +54,8 @@ enum gdma_eqe_type {
+ GDMA_EQE_HWC_INIT_EQ_ID_DB = 129,
+ GDMA_EQE_HWC_INIT_DATA = 130,
+ GDMA_EQE_HWC_INIT_DONE = 131,
++ GDMA_EQE_HWC_SOC_RECONFIG = 132,
++ GDMA_EQE_HWC_SOC_RECONFIG_DATA = 133,
+ };
+
+ enum {
+@@ -529,10 +532,12 @@ enum {
+ * so the driver is able to reliably support features like busy_poll.
+ */
+ #define GDMA_DRV_CAP_FLAG_1_NAPI_WKDONE_FIX BIT(2)
++#define GDMA_DRV_CAP_FLAG_1_HWC_TIMEOUT_RECONFIG BIT(3)
+
+ #define GDMA_DRV_CAP_FLAGS1 \
+ (GDMA_DRV_CAP_FLAG_1_EQ_SHARING_MULTI_VPORT | \
+- GDMA_DRV_CAP_FLAG_1_NAPI_WKDONE_FIX)
++ GDMA_DRV_CAP_FLAG_1_NAPI_WKDONE_FIX | \
++ GDMA_DRV_CAP_FLAG_1_HWC_TIMEOUT_RECONFIG)
+
+ #define GDMA_DRV_CAP_FLAGS2 0
+
+@@ -642,6 +647,19 @@ struct gdma_disable_queue_req {
+ u32 alloc_res_id_on_creation;
+ }; /* HW DATA */
+
++/* GDMA_QUERY_HWC_TIMEOUT */
++struct gdma_query_hwc_timeout_req {
++ struct gdma_req_hdr hdr;
++ u32 timeout_ms;
++ u32 reserved;
++};
++
++struct gdma_query_hwc_timeout_resp {
++ struct gdma_resp_hdr hdr;
++ u32 timeout_ms;
++ u32 reserved;
++};
++
+ enum atb_page_size {
+ ATB_PAGE_SIZE_4K,
+ ATB_PAGE_SIZE_8K,
+diff --git a/include/net/mana/hw_channel.h b/include/net/mana/hw_channel.h
+index 6a757a6e2732..3d3b5c881bc1 100644
+--- a/include/net/mana/hw_channel.h
++++ b/include/net/mana/hw_channel.h
+@@ -23,6 +23,10 @@
+ #define HWC_INIT_DATA_PF_DEST_RQ_ID 10
+ #define HWC_INIT_DATA_PF_DEST_CQ_ID 11
+
++#define HWC_DATA_CFG_HWC_TIMEOUT 1
++
++#define HW_CHANNEL_WAIT_RESOURCE_TIMEOUT_MS 30000
++
+ /* Structures labeled with "HW DATA" are exchanged with the hardware. All of
+ * them are naturally aligned and hence don't need __packed.
+ */
+@@ -182,6 +186,7 @@ struct hw_channel_context {
+
+ u32 pf_dest_vrq_id;
+ u32 pf_dest_vrcq_id;
++ u32 hwc_timeout;
+
+ struct hwc_caller_ctx *caller_ctx;
+ };
+--
+2.40.1
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 16:13:13 +0000