Update Linux to v5.10.109
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz
Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/drivers/infiniband/hw/hfi1/netdev.h b/drivers/infiniband/hw/hfi1/netdev.h
new file mode 100644
index 0000000..947543a
--- /dev/null
+++ b/drivers/infiniband/hw/hfi1/netdev.h
@@ -0,0 +1,118 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
+/*
+ * Copyright(c) 2020 Intel Corporation.
+ *
+ */
+
+#ifndef HFI1_NETDEV_H
+#define HFI1_NETDEV_H
+
+#include "hfi.h"
+
+#include <linux/netdevice.h>
+#include <linux/xarray.h>
+
+/**
+ * struct hfi1_netdev_rxq - Receive Queue for HFI
+ * dummy netdev. Both IPoIB and VNIC netdevices will be working on
+ * top of this device.
+ * @napi: napi object
+ * @priv: ptr to netdev_priv
+ * @rcd: ptr to receive context data
+ */
+struct hfi1_netdev_rxq {
+ struct napi_struct napi;
+ struct hfi1_netdev_priv *priv;
+ struct hfi1_ctxtdata *rcd;
+};
+
+/*
+ * Number of netdev contexts used. Ensure it is less than or equal to
+ * max queues supported by VNIC (HFI1_VNIC_MAX_QUEUE).
+ */
+#define HFI1_MAX_NETDEV_CTXTS 8
+
+/* Number of NETDEV RSM entries */
+#define NUM_NETDEV_MAP_ENTRIES HFI1_MAX_NETDEV_CTXTS
+
+/**
+ * struct hfi1_netdev_priv: data required to setup and run HFI netdev.
+ * @dd: hfi1_devdata
+ * @rxq: pointer to dummy netdev receive queues.
+ * @num_rx_q: number of receive queues
+ * @rmt_index: first free index in RMT Array
+ * @msix_start: first free MSI-X interrupt vector.
+ * @dev_tbl: netdev table for unique identifier VNIC and IPoIb VLANs.
+ * @enabled: atomic counter of netdevs enabling receive queues.
+ * When 0 NAPI will be disabled.
+ * @netdevs: atomic counter of netdevs using dummy netdev.
+ * When 0 receive queues will be freed.
+ */
+struct hfi1_netdev_priv {
+ struct hfi1_devdata *dd;
+ struct hfi1_netdev_rxq *rxq;
+ int num_rx_q;
+ int rmt_start;
+ struct xarray dev_tbl;
+ /* count of enabled napi polls */
+ atomic_t enabled;
+ /* count of netdevs on top */
+ atomic_t netdevs;
+};
+
+static inline
+struct hfi1_netdev_priv *hfi1_netdev_priv(struct net_device *dev)
+{
+ return (struct hfi1_netdev_priv *)&dev[1];
+}
+
+static inline
+int hfi1_netdev_ctxt_count(struct hfi1_devdata *dd)
+{
+ struct hfi1_netdev_priv *priv = hfi1_netdev_priv(dd->dummy_netdev);
+
+ return priv->num_rx_q;
+}
+
+static inline
+struct hfi1_ctxtdata *hfi1_netdev_get_ctxt(struct hfi1_devdata *dd, int ctxt)
+{
+ struct hfi1_netdev_priv *priv = hfi1_netdev_priv(dd->dummy_netdev);
+
+ return priv->rxq[ctxt].rcd;
+}
+
+static inline
+int hfi1_netdev_get_free_rmt_idx(struct hfi1_devdata *dd)
+{
+ struct hfi1_netdev_priv *priv = hfi1_netdev_priv(dd->dummy_netdev);
+
+ return priv->rmt_start;
+}
+
+static inline
+void hfi1_netdev_set_free_rmt_idx(struct hfi1_devdata *dd, int rmt_idx)
+{
+ struct hfi1_netdev_priv *priv = hfi1_netdev_priv(dd->dummy_netdev);
+
+ priv->rmt_start = rmt_idx;
+}
+
+u32 hfi1_num_netdev_contexts(struct hfi1_devdata *dd, u32 available_contexts,
+ struct cpumask *cpu_mask);
+
+void hfi1_netdev_enable_queues(struct hfi1_devdata *dd);
+void hfi1_netdev_disable_queues(struct hfi1_devdata *dd);
+int hfi1_netdev_rx_init(struct hfi1_devdata *dd);
+int hfi1_netdev_rx_destroy(struct hfi1_devdata *dd);
+int hfi1_netdev_alloc(struct hfi1_devdata *dd);
+void hfi1_netdev_free(struct hfi1_devdata *dd);
+int hfi1_netdev_add_data(struct hfi1_devdata *dd, int id, void *data);
+void *hfi1_netdev_remove_data(struct hfi1_devdata *dd, int id);
+void *hfi1_netdev_get_data(struct hfi1_devdata *dd, int id);
+void *hfi1_netdev_get_first_data(struct hfi1_devdata *dd, int *start_id);
+
+/* chip.c */
+int hfi1_netdev_rx_napi(struct napi_struct *napi, int budget);
+
+#endif /* HFI1_NETDEV_H */