drop patches applied upstream

[pve-kernel-jessie.git] / nvme-revert-NVMe-only-setup-MSIX-once.patch

diff --git a/nvme-revert-NVMe-only-setup-MSIX-once.patch b/nvme-revert-NVMe-only-setup-MSIX-once.patch
deleted file mode 100644 (file)
index b46221e..0000000
--- a/nvme-revert-NVMe-only-setup-MSIX-once.patch
+++ /dev/null
@@ -1,128 +0,0 @@
-From af220b3adff164d1b8b89d7d5c8bb741d6195012 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Fabian=20Gr=C3=BCnbichler?= <f.gruenbichler@proxmox.com>
-Date: Thu, 19 Jan 2017 15:19:46 +0100
-Subject: [PATCH] Revert "UBUNTU: SAUCE: (no-up) NVMe: only setup MSIX once"
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-This reverts commit 96fce9e4025b96b08bfe5196d3380ab9215cb64b.
-
-Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
----
- drivers/nvme/host/pci.c | 73 ++++++++++++++++++++++++++++++++++---------------
- 1 file changed, 51 insertions(+), 22 deletions(-)
-
-diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
-index ae1f695..b9cf5aa 100644
---- a/drivers/nvme/host/pci.c
-+++ b/drivers/nvme/host/pci.c
-@@ -1613,7 +1613,7 @@ static int nvme_setup_io_queues(struct nvme_dev *dev)
-       struct pci_dev *pdev = to_pci_dev(dev->dev);
-       int result, i, vecs, nr_io_queues, size;
- 
--      nr_io_queues = dev->max_qid + 1;
-+      nr_io_queues = num_possible_cpus();
-       result = nvme_set_queue_count(&dev->ctrl, &nr_io_queues);
-       if (result < 0)
-               return result;
-@@ -1653,7 +1653,45 @@ static int nvme_setup_io_queues(struct nvme_dev *dev)
-               adminq->q_db = dev->dbs;
-       }
- 
--      dev->max_qid = nr_io_queues - 1;
-+      /* Deregister the admin queue's interrupt */
-+      free_irq(dev->entry[0].vector, adminq);
-+
-+      /*
-+       * If we enable msix early due to not intx, disable it again before
-+       * setting up the full range we need.
-+       */
-+      if (pdev->msi_enabled)
-+              pci_disable_msi(pdev);
-+      else if (pdev->msix_enabled)
-+              pci_disable_msix(pdev);
-+
-+      for (i = 0; i < nr_io_queues; i++)
-+              dev->entry[i].entry = i;
-+      vecs = pci_enable_msix_range(pdev, dev->entry, 1, nr_io_queues);
-+      if (vecs < 0) {
-+              vecs = pci_enable_msi_range(pdev, 1, min(nr_io_queues, 32));
-+              if (vecs < 0) {
-+                      vecs = 1;
-+              } else {
-+                      for (i = 0; i < vecs; i++)
-+                              dev->entry[i].vector = i + pdev->irq;
-+              }
-+      }
-+
-+      /*
-+       * Should investigate if there's a performance win from allocating
-+       * more queues than interrupt vectors; it might allow the submission
-+       * path to scale better, even if the receive path is limited by the
-+       * number of interrupts.
-+       */
-+      nr_io_queues = vecs;
-+      dev->max_qid = nr_io_queues;
-+
-+      result = queue_request_irq(dev, adminq, adminq->irqname);
-+      if (result) {
-+              adminq->cq_vector = -1;
-+              goto free_queues;
-+      }
- 
-       /* Free previously allocated queues that are no longer usable */
-       nvme_free_queues(dev, nr_io_queues + 1);
-@@ -1806,7 +1844,7 @@ static int nvme_dev_add(struct nvme_dev *dev)
- static int nvme_pci_enable(struct nvme_dev *dev)
- {
-       u64 cap;
--      int result = -ENOMEM, nr_io_queues, i, vecs;
-+      int result = -ENOMEM;
-       struct pci_dev *pdev = to_pci_dev(dev->dev);
- 
-       if (pci_enable_device_mem(pdev))
-@@ -1823,30 +1861,21 @@ static int nvme_pci_enable(struct nvme_dev *dev)
-               goto disable;
-       }
- 
--      nr_io_queues = num_possible_cpus();
--
--      for (i = 0; i < nr_io_queues; i++)
--              dev->entry[i].entry = i;
--      vecs = pci_enable_msix_range(pdev, dev->entry, 1, nr_io_queues);
--      if (vecs < 0) {
--              vecs = pci_enable_msi_range(pdev, 1, min(nr_io_queues, 32));
--              if (vecs < 0) {
--                      result = vecs;
--                      goto disable;
--              } else {
--                      for (i = 0; i < vecs; i++)
--                              dev->entry[i].vector = i + pdev->irq;
--              }
-+      /*
-+       * Some devices and/or platforms don't advertise or work with INTx
-+       * interrupts. Pre-enable a single MSIX or MSI vec for setup. We'll
-+       * adjust this later.
-+       */
-+      if (pci_enable_msix(pdev, dev->entry, 1)) {
-+              pci_enable_msi(pdev);
-+              dev->entry[0].vector = pdev->irq;
-       }
- 
--      if (vecs < 2) {
--              dev_err(dev->ctrl.device, "Failed to get enough MSI/MSIX interrupts\n");
--              result = -ENOSPC;
-+      if (!dev->entry[0].vector) {
-+              result = -ENODEV;
-               goto disable;
-       }
- 
--      dev->max_qid = vecs - 1;
--
-       cap = lo_hi_readq(dev->bar + NVME_REG_CAP);
- 
-       dev->q_depth = min_t(int, NVME_CAP_MQES(cap) + 1, NVME_Q_DEPTH);
--- 
-2.1.4
-