Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 79 insertions, 0 deletions

diff --git a/drivers/net/ethernet/sfc/siena/siena_sriov.h b/drivers/net/ethernet/sfc/siena/siena_sriov.h
new file mode 100644
index 000000000..50f6e9244
--- /dev/null
+++ b/drivers/net/ethernet/sfc/siena/siena_sriov.h
@@ -0,0 +1,79 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/****************************************************************************
+ * Driver for Solarflare network controllers and boards
+ * Copyright 2015 Solarflare Communications Inc.
+ */
+
+#ifndef SIENA_SRIOV_H
+#define SIENA_SRIOV_H
+
+#include "net_driver.h"
+
+/* On the SFC9000 family each port is associated with 1 PCI physical
+ * function (PF) handled by sfc and a configurable number of virtual
+ * functions (VFs) that may be handled by some other driver, often in
+ * a VM guest.  The queue pointer registers are mapped in both PF and
+ * VF BARs such that an 8K region provides access to a single RX, TX
+ * and event queue (collectively a Virtual Interface, VI or VNIC).
+ *
+ * The PF has access to all 1024 VIs while VFs are mapped to VIs
+ * according to VI_BASE and VI_SCALE: VF i has access to VIs numbered
+ * in range [VI_BASE + i << VI_SCALE, VI_BASE + i + 1 << VI_SCALE).
+ * The number of VIs and the VI_SCALE value are configurable but must
+ * be established at boot time by firmware.
+ */
+
+/* Maximum VI_SCALE parameter supported by Siena */
+#define EFX_VI_SCALE_MAX 6
+/* Base VI to use for SR-IOV. Must be aligned to (1 << EFX_VI_SCALE_MAX),
+ * so this is the smallest allowed value.
+ */
+#define EFX_VI_BASE 128U
+/* Maximum number of VFs allowed */
+#define EFX_VF_COUNT_MAX 127
+/* Limit EVQs on VFs to be only 8k to reduce buffer table reservation */
+#define EFX_MAX_VF_EVQ_SIZE 8192UL
+/* The number of buffer table entries reserved for each VI on a VF */
+#define EFX_VF_BUFTBL_PER_VI					\
+	((EFX_MAX_VF_EVQ_SIZE + 2 * EFX_MAX_DMAQ_SIZE) *	\
+	 sizeof(efx_qword_t) / EFX_BUF_SIZE)
+
+int efx_siena_sriov_configure(struct efx_nic *efx, int num_vfs);
+int efx_siena_sriov_init(struct efx_nic *efx);
+void efx_siena_sriov_fini(struct efx_nic *efx);
+int efx_siena_sriov_mac_address_changed(struct efx_nic *efx);
+bool efx_siena_sriov_wanted(struct efx_nic *efx);
+void efx_siena_sriov_reset(struct efx_nic *efx);
+void efx_siena_sriov_flr(struct efx_nic *efx, unsigned flr);
+
+int efx_siena_sriov_set_vf_mac(struct efx_nic *efx, int vf, const u8 *mac);
+int efx_siena_sriov_set_vf_vlan(struct efx_nic *efx, int vf,
+				u16 vlan, u8 qos);
+int efx_siena_sriov_set_vf_spoofchk(struct efx_nic *efx, int vf,
+				    bool spoofchk);
+int efx_siena_sriov_get_vf_config(struct efx_nic *efx, int vf,
+				  struct ifla_vf_info *ivf);
+
+#ifdef CONFIG_SFC_SIENA_SRIOV
+
+static inline bool efx_siena_sriov_enabled(struct efx_nic *efx)
+{
+	return efx->vf_init_count != 0;
+}
+
+int efx_init_sriov(void);
+void efx_fini_sriov(void);
+#else /* !CONFIG_SFC_SIENA_SRIOV */
+static inline bool efx_siena_sriov_enabled(struct efx_nic *efx)
+{
+	return false;
+}
+#endif /* CONFIG_SFC_SIENA_SRIOV */
+
+void efx_siena_sriov_probe(struct efx_nic *efx);
+void efx_siena_sriov_tx_flush_done(struct efx_nic *efx, efx_qword_t *event);
+void efx_siena_sriov_rx_flush_done(struct efx_nic *efx, efx_qword_t *event);
+void efx_siena_sriov_event(struct efx_channel *channel, efx_qword_t *event);
+void efx_siena_sriov_desc_fetch_err(struct efx_nic *efx, unsigned dmaq);
+
+#endif /* SIENA_SRIOV_H */