kernel: delete Linux 5.4 config and patches

[openwrt/staging/chunkeey.git] / target / linux / layerscape / patches-5.4 / 701-net-0071-sdk_dpaa-ceetm-drain-the-ceetm-CQs-on-destroy.patch

diff --git a/target/linux/layerscape/patches-5.4/701-net-0071-sdk_dpaa-ceetm-drain-the-ceetm-CQs-on-destroy.patch b/target/linux/layerscape/patches-5.4/701-net-0071-sdk_dpaa-ceetm-drain-the-ceetm-CQs-on-destroy.patch
deleted file mode 100644 (file)
index bdca236..0000000
--- a/target/linux/layerscape/patches-5.4/701-net-0071-sdk_dpaa-ceetm-drain-the-ceetm-CQs-on-destroy.patch
+++ /dev/null
@@ -1,116 +0,0 @@
-From fe7ed61721646077de5eb06a105e60634374a00c Mon Sep 17 00:00:00 2001
-From: Camelia Groza <camelia.groza@nxp.com>
-Date: Thu, 31 May 2018 10:45:50 +0300
-Subject: [PATCH] sdk_dpaa: ceetm: drain the ceetm CQs on destroy
-
-The CEETM CQs must be empty when configured. To guarantee this, stop all
-transmissions and wait for them to drain before releasing them. On the
-next configuration, we are certain they will be empty.
-
-Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
----
- .../ethernet/freescale/sdk_dpaa/dpaa_eth_ceetm.c   | 62 ++++++++++++++++++++++
- 1 file changed, 62 insertions(+)
-
---- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_ceetm.c
-+++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_ceetm.c
-@@ -90,6 +90,51 @@ static void dpaa_drain_fqs(struct net_de
-       }
- }
- 
-+/* Wait for the DPAA CEETM TX CQs to empty */
-+static void ceetm_drain_class(struct ceetm_class *cl)
-+{
-+      struct qm_mcr_ceetm_cq_query cq_query;
-+      struct qm_ceetm_cq *cq;
-+      unsigned int idx;
-+      int ret;
-+
-+      if (!cl)
-+              return;
-+
-+      switch (cl->type) {
-+      case CEETM_ROOT:
-+              /* The ROOT classes aren't directly linked to CEETM CQs */
-+              return;
-+      case CEETM_PRIO:
-+              cq = (struct qm_ceetm_cq*)cl->prio.cq;
-+              break;
-+      case CEETM_WBFS:
-+              cq = (struct qm_ceetm_cq*)cl->wbfs.cq;
-+              break;
-+      }
-+
-+      if (!cq || !cl->ch)
-+              return;
-+
-+      /* Build the query CQID by merging the channel and the CQ IDs */
-+      idx = (cq->parent->idx << 4) | cq->idx;
-+
-+      while (true) {
-+              ret = qman_ceetm_query_cq(idx,
-+                                        cl->ch->dcp_idx,
-+                                        &cq_query);
-+              if (unlikely(ret)) {
-+                      pr_err(KBUILD_BASENAME
-+                             " : %s : unable to query CQ %x: %d\n",
-+                             __func__, idx, ret);
-+                      break;
-+              }
-+
-+              if (cq_query.frm_cnt == 0)
-+                      break;
-+      }
-+}
-+
- /* Enqueue Rejection Notification callback */
- static void ceetm_ern(struct qman_portal *portal, struct qman_fq *fq,
-                     const struct qm_mr_entry *msg)
-@@ -376,6 +421,8 @@ static void ceetm_link_class(struct Qdis
- /* Destroy a ceetm class */
- static void ceetm_cls_destroy(struct Qdisc *sch, struct ceetm_class *cl)
- {
-+      struct net_device *dev = qdisc_dev(sch);
-+
-       if (!cl)
-               return;
- 
-@@ -402,6 +449,12 @@ static void ceetm_cls_destroy(struct Qdi
-                       cl->prio.child = NULL;
-               }
- 
-+              /* We must make sure the CQ is empty before releasing it.
-+               * Pause all transmissions while we wait for it to drain.
-+               */
-+              netif_tx_stop_all_queues(dev);
-+              ceetm_drain_class(cl);
-+
-               if (cl->prio.lfq && qman_ceetm_lfq_release(cl->prio.lfq))
-                       pr_err(KBUILD_BASENAME
-                              " : %s : error releasing the LFQ %d\n",
-@@ -422,9 +475,16 @@ static void ceetm_cls_destroy(struct Qdi
-               if (cl->prio.cstats)
-                       free_percpu(cl->prio.cstats);
- 
-+              netif_tx_wake_all_queues(dev);
-               break;
- 
-       case CEETM_WBFS:
-+              /* We must make sure the CQ is empty before releasing it.
-+               * Pause all transmissions while we wait for it to drain.
-+               */
-+              netif_tx_stop_all_queues(dev);
-+              ceetm_drain_class(cl);
-+
-               if (cl->wbfs.lfq && qman_ceetm_lfq_release(cl->wbfs.lfq))
-                       pr_err(KBUILD_BASENAME
-                              " : %s : error releasing the LFQ %d\n",
-@@ -444,6 +504,8 @@ static void ceetm_cls_destroy(struct Qdi
- 
-               if (cl->wbfs.cstats)
-                       free_percpu(cl->wbfs.cstats);
-+
-+              netif_tx_wake_all_queues(dev);
-       }
- 
-       tcf_block_put(cl->block);