1 files changed, 299 insertions, 0 deletions
diff --git a/drivers/net/ethernet/brocade/bna/bfa_cee.c b/drivers/net/ethernet/brocade/bna/bfa_cee.c
new file mode 100644
index 000000000000..8e627186507c
--- /dev/null
+++ b/drivers/net/ethernet/brocade/bna/bfa_cee.c
@@ -0,0 +1,299 @@
+/*
+ * Linux network driver for Brocade Converged Network Adapter.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License (GPL) Version 2 as
+ * published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+/*
+ * Copyright (c) 2005-2010 Brocade Communications Systems, Inc.
+ * All rights reserved
+ * www.brocade.com
+ */
+
+#include "bfa_cee.h"
+#include "bfi_cna.h"
+#include "bfa_ioc.h"
+
+static void bfa_cee_format_lldp_cfg(struct bfa_cee_lldp_cfg *lldp_cfg);
+static void bfa_cee_format_cee_cfg(void *buffer);
+
+static void
+bfa_cee_format_cee_cfg(void *buffer)
+{
+	struct bfa_cee_attr *cee_cfg = buffer;
+	bfa_cee_format_lldp_cfg(&cee_cfg->lldp_remote);
+}
+
+static void
+bfa_cee_stats_swap(struct bfa_cee_stats *stats)
+{
+	u32 *buffer = (u32 *)stats;
+	int i;
+
+	for (i = 0; i < (sizeof(struct bfa_cee_stats) / sizeof(u32));
+		i++) {
+		buffer[i] = ntohl(buffer[i]);
+	}
+}
+
+static void
+bfa_cee_format_lldp_cfg(struct bfa_cee_lldp_cfg *lldp_cfg)
+{
+	lldp_cfg->time_to_live =
+			ntohs(lldp_cfg->time_to_live);
+	lldp_cfg->enabled_system_cap =
+			ntohs(lldp_cfg->enabled_system_cap);
+}
+
+/**
+ * bfa_cee_attr_meminfo()
+ *
+ * @brief Returns the size of the DMA memory needed by CEE attributes
+ *
+ * @param[in] void
+ *
+ * @return Size of DMA region
+ */
+static u32
+bfa_cee_attr_meminfo(void)
+{
+	return roundup(sizeof(struct bfa_cee_attr), BFA_DMA_ALIGN_SZ);
+}
+/**
+ * bfa_cee_stats_meminfo()
+ *
+ * @brief Returns the size of the DMA memory needed by CEE stats
+ *
+ * @param[in] void
+ *
+ * @return Size of DMA region
+ */
+static u32
+bfa_cee_stats_meminfo(void)
+{
+	return roundup(sizeof(struct bfa_cee_stats), BFA_DMA_ALIGN_SZ);
+}
+
+/**
+ * bfa_cee_get_attr_isr()
+ *
+ * @brief CEE ISR for get-attributes responses from f/w
+ *
+ * @param[in] cee - Pointer to the CEE module
+ *            status - Return status from the f/w
+ *
+ * @return void
+ */
+static void
+bfa_cee_get_attr_isr(struct bfa_cee *cee, enum bfa_status status)
+{
+	cee->get_attr_status = status;
+	if (status == BFA_STATUS_OK) {
+		memcpy(cee->attr, cee->attr_dma.kva,
+		    sizeof(struct bfa_cee_attr));
+		bfa_cee_format_cee_cfg(cee->attr);
+	}
+	cee->get_attr_pending = false;
+	if (cee->cbfn.get_attr_cbfn)
+		cee->cbfn.get_attr_cbfn(cee->cbfn.get_attr_cbarg, status);
+}
+
+/**
+ * bfa_cee_get_attr_isr()
+ *
+ * @brief CEE ISR for get-stats responses from f/w
+ *
+ * @param[in] cee - Pointer to the CEE module
+ *            status - Return status from the f/w
+ *
+ * @return void
+ */
+static void
+bfa_cee_get_stats_isr(struct bfa_cee *cee, enum bfa_status status)
+{
+	cee->get_stats_status = status;
+	if (status == BFA_STATUS_OK) {
+		memcpy(cee->stats, cee->stats_dma.kva,
+			sizeof(struct bfa_cee_stats));
+		bfa_cee_stats_swap(cee->stats);
+	}
+	cee->get_stats_pending = false;
+	if (cee->cbfn.get_stats_cbfn)
+		cee->cbfn.get_stats_cbfn(cee->cbfn.get_stats_cbarg, status);
+}
+
+/**
+ * bfa_cee_get_attr_isr()
+ *
+ * @brief CEE ISR for reset-stats responses from f/w
+ *
+ * @param[in] cee - Pointer to the CEE module
+ *            status - Return status from the f/w
+ *
+ * @return void
+ */
+static void
+bfa_cee_reset_stats_isr(struct bfa_cee *cee, enum bfa_status status)
+{
+	cee->reset_stats_status = status;
+	cee->reset_stats_pending = false;
+	if (cee->cbfn.reset_stats_cbfn)
+		cee->cbfn.reset_stats_cbfn(cee->cbfn.reset_stats_cbarg, status);
+}
+/**
+ * bfa_nw_cee_meminfo()
+ *
+ * @brief Returns the size of the DMA memory needed by CEE module
+ *
+ * @param[in] void
+ *
+ * @return Size of DMA region
+ */
+u32
+bfa_nw_cee_meminfo(void)
+{
+	return bfa_cee_attr_meminfo() + bfa_cee_stats_meminfo();
+}
+
+/**
+ * bfa_nw_cee_mem_claim()
+ *
+ * @brief Initialized CEE DMA Memory
+ *
+ * @param[in] cee CEE module pointer
+ *	      dma_kva Kernel Virtual Address of CEE DMA Memory
+ *	      dma_pa  Physical Address of CEE DMA Memory
+ *
+ * @return void
+ */
+void
+bfa_nw_cee_mem_claim(struct bfa_cee *cee, u8 *dma_kva, u64 dma_pa)
+{
+	cee->attr_dma.kva = dma_kva;
+	cee->attr_dma.pa = dma_pa;
+	cee->stats_dma.kva = dma_kva + bfa_cee_attr_meminfo();
+	cee->stats_dma.pa = dma_pa + bfa_cee_attr_meminfo();
+	cee->attr = (struct bfa_cee_attr *) dma_kva;
+	cee->stats = (struct bfa_cee_stats *)
+		(dma_kva + bfa_cee_attr_meminfo());
+}
+
+/**
+ * bfa_cee_isrs()
+ *
+ * @brief Handles Mail-box interrupts for CEE module.
+ *
+ * @param[in] Pointer to the CEE module data structure.
+ *
+ * @return void
+ */
+
+static void
+bfa_cee_isr(void *cbarg, struct bfi_mbmsg *m)
+{
+	union bfi_cee_i2h_msg_u *msg;
+	struct bfi_cee_get_rsp *get_rsp;
+	struct bfa_cee *cee = (struct bfa_cee *) cbarg;
+	msg = (union bfi_cee_i2h_msg_u *) m;
+	get_rsp = (struct bfi_cee_get_rsp *) m;
+	switch (msg->mh.msg_id) {
+	case BFI_CEE_I2H_GET_CFG_RSP:
+		bfa_cee_get_attr_isr(cee, get_rsp->cmd_status);
+		break;
+	case BFI_CEE_I2H_GET_STATS_RSP:
+		bfa_cee_get_stats_isr(cee, get_rsp->cmd_status);
+		break;
+	case BFI_CEE_I2H_RESET_STATS_RSP:
+		bfa_cee_reset_stats_isr(cee, get_rsp->cmd_status);
+		break;
+	default:
+		BUG_ON(1);
+	}
+}
+
+/**
+ * bfa_cee_notify()
+ *
+ * @brief CEE module heart-beat failure handler.
+ * @brief CEE module IOC event handler.
+ *
+ * @param[in] IOC event type
+ *
+ * @return void
+ */
+
+static void
+bfa_cee_notify(void *arg, enum bfa_ioc_event event)
+{
+	struct bfa_cee *cee;
+	cee = (struct bfa_cee *) arg;
+
+	switch (event) {
+	case BFA_IOC_E_DISABLED:
+	case BFA_IOC_E_FAILED:
+		if (cee->get_attr_pending == true) {
+			cee->get_attr_status = BFA_STATUS_FAILED;
+			cee->get_attr_pending  = false;
+			if (cee->cbfn.get_attr_cbfn) {
+				cee->cbfn.get_attr_cbfn(
+					cee->cbfn.get_attr_cbarg,
+					BFA_STATUS_FAILED);
+			}
+		}
+		if (cee->get_stats_pending == true) {
+			cee->get_stats_status = BFA_STATUS_FAILED;
+			cee->get_stats_pending  = false;
+			if (cee->cbfn.get_stats_cbfn) {
+				cee->cbfn.get_stats_cbfn(
+					cee->cbfn.get_stats_cbarg,
+					BFA_STATUS_FAILED);
+			}
+		}
+		if (cee->reset_stats_pending == true) {
+			cee->reset_stats_status = BFA_STATUS_FAILED;
+			cee->reset_stats_pending  = false;
+			if (cee->cbfn.reset_stats_cbfn) {
+				cee->cbfn.reset_stats_cbfn(
+					cee->cbfn.reset_stats_cbarg,
+					BFA_STATUS_FAILED);
+			}
+		}
+		break;
+
+	default:
+		break;
+	}
+}
+
+/**
+ * bfa_nw_cee_attach()
+ *
+ * @brief CEE module-attach API
+ *
+ * @param[in] cee - Pointer to the CEE module data structure
+ *            ioc - Pointer to the ioc module data structure
+ *            dev - Pointer to the device driver module data structure
+ *                  The device driver specific mbox ISR functions have
+ *                  this pointer as one of the parameters.
+ *
+ * @return void
+ */
+void
+bfa_nw_cee_attach(struct bfa_cee *cee, struct bfa_ioc *ioc,
+		void *dev)
+{
+	BUG_ON(!(cee != NULL));
+	cee->dev = dev;
+	cee->ioc = ioc;
+
+	bfa_nw_ioc_mbox_regisr(cee->ioc, BFI_MC_CEE, bfa_cee_isr, cee);
+	bfa_q_qe_init(&cee->ioc_notify);
+	bfa_ioc_notify_init(&cee->ioc_notify, bfa_cee_notify, cee);
+	bfa_nw_ioc_notify_register(cee->ioc, &cee->ioc_notify);
+}