Merge branch 'perf/core' into perf/uprobes

Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 224 insertions, 72 deletions

diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_ctx.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_ctx.c
index a925392abd6..f3c0057a802 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_ctx.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_ctx.c
@@ -48,28 +48,27 @@ netxen_poll_rsp(struct netxen_adapter *adapter)
 }
 
 static u32
-netxen_issue_cmd(struct netxen_adapter *adapter,
-	u32 pci_fn, u32 version, u32 arg1, u32 arg2, u32 arg3, u32 cmd)
+netxen_issue_cmd(struct netxen_adapter *adapter, struct netxen_cmd_args *cmd)
 {
 	u32 rsp;
 	u32 signature = 0;
 	u32 rcode = NX_RCODE_SUCCESS;
 
-	signature = NX_CDRP_SIGNATURE_MAKE(pci_fn, version);
-
+	signature = NX_CDRP_SIGNATURE_MAKE(adapter->ahw.pci_func,
+						NXHAL_VERSION);
 	/* Acquire semaphore before accessing CRB */
 	if (netxen_api_lock(adapter))
 		return NX_RCODE_TIMEOUT;
 
 	NXWR32(adapter, NX_SIGN_CRB_OFFSET, signature);
 
-	NXWR32(adapter, NX_ARG1_CRB_OFFSET, arg1);
+	NXWR32(adapter, NX_ARG1_CRB_OFFSET, cmd->req.arg1);
 
-	NXWR32(adapter, NX_ARG2_CRB_OFFSET, arg2);
+	NXWR32(adapter, NX_ARG2_CRB_OFFSET, cmd->req.arg2);
 
-	NXWR32(adapter, NX_ARG3_CRB_OFFSET, arg3);
+	NXWR32(adapter, NX_ARG3_CRB_OFFSET, cmd->req.arg3);
 
-	NXWR32(adapter, NX_CDRP_CRB_OFFSET, NX_CDRP_FORM_CMD(cmd));
+	NXWR32(adapter, NX_CDRP_CRB_OFFSET, NX_CDRP_FORM_CMD(cmd->req.cmd));
 
 	rsp = netxen_poll_rsp(adapter);
 
@@ -83,28 +82,179 @@ netxen_issue_cmd(struct netxen_adapter *adapter,
 
 		printk(KERN_ERR "%s: failed card response code:0x%x\n",
 				netxen_nic_driver_name, rcode);
+	} else if (rsp == NX_CDRP_RSP_OK) {
+		cmd->rsp.cmd = NX_RCODE_SUCCESS;
+		if (cmd->rsp.arg2)
+			cmd->rsp.arg2 = NXRD32(adapter, NX_ARG2_CRB_OFFSET);
+		if (cmd->rsp.arg3)
+			cmd->rsp.arg3 = NXRD32(adapter, NX_ARG3_CRB_OFFSET);
 	}
 
+	if (cmd->rsp.arg1)
+		cmd->rsp.arg1 = NXRD32(adapter, NX_ARG1_CRB_OFFSET);
 	/* Release semaphore */
 	netxen_api_unlock(adapter);
 
 	return rcode;
 }
 
+static int
+netxen_get_minidump_template_size(struct netxen_adapter *adapter)
+{
+	struct netxen_cmd_args cmd;
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.req.cmd = NX_CDRP_CMD_TEMP_SIZE;
+	memset(&cmd.rsp, 1, sizeof(struct _cdrp_cmd));
+	netxen_issue_cmd(adapter, &cmd);
+	if (cmd.rsp.cmd != NX_RCODE_SUCCESS) {
+		dev_info(&adapter->pdev->dev,
+			"Can't get template size %d\n", cmd.rsp.cmd);
+		return -EIO;
+	}
+	adapter->mdump.md_template_size = cmd.rsp.arg2;
+	adapter->mdump.md_template_ver = cmd.rsp.arg3;
+	return 0;
+}
+
+static int
+netxen_get_minidump_template(struct netxen_adapter *adapter)
+{
+	dma_addr_t md_template_addr;
+	void *addr;
+	u32 size;
+	struct netxen_cmd_args cmd;
+	size = adapter->mdump.md_template_size;
+
+	if (size == 0) {
+		dev_err(&adapter->pdev->dev, "Can not capture Minidump "
+			"template. Invalid template size.\n");
+		return NX_RCODE_INVALID_ARGS;
+	}
+
+	addr = pci_alloc_consistent(adapter->pdev, size, &md_template_addr);
+
+	if (!addr) {
+		dev_err(&adapter->pdev->dev, "Unable to allocate dmable memory for template.\n");
+		return -ENOMEM;
+	}
+
+	memset(addr, 0, size);
+	memset(&cmd, 0, sizeof(cmd));
+	memset(&cmd.rsp, 1, sizeof(struct _cdrp_cmd));
+	cmd.req.cmd = NX_CDRP_CMD_GET_TEMP_HDR;
+	cmd.req.arg1 = LSD(md_template_addr);
+	cmd.req.arg2 = MSD(md_template_addr);
+	cmd.req.arg3 |= size;
+	netxen_issue_cmd(adapter, &cmd);
+
+	if ((cmd.rsp.cmd == NX_RCODE_SUCCESS) && (size == cmd.rsp.arg2)) {
+		memcpy(adapter->mdump.md_template, addr, size);
+	} else {
+		dev_err(&adapter->pdev->dev, "Failed to get minidump template, "
+			"err_code : %d, requested_size : %d, actual_size : %d\n ",
+			cmd.rsp.cmd, size, cmd.rsp.arg2);
+	}
+	pci_free_consistent(adapter->pdev, size, addr, md_template_addr);
+	return 0;
+}
+
+static u32
+netxen_check_template_checksum(struct netxen_adapter *adapter)
+{
+	u64 sum =  0 ;
+	u32 *buff = adapter->mdump.md_template;
+	int count =  adapter->mdump.md_template_size/sizeof(uint32_t) ;
+
+	while (count-- > 0)
+		sum += *buff++ ;
+	while (sum >> 32)
+		sum = (sum & 0xFFFFFFFF) +  (sum >> 32) ;
+
+	return ~sum;
+}
+
+int
+netxen_setup_minidump(struct netxen_adapter *adapter)
+{
+	int err = 0, i;
+	u32 *template, *tmp_buf;
+	struct netxen_minidump_template_hdr *hdr;
+	err = netxen_get_minidump_template_size(adapter);
+	if (err) {
+		adapter->mdump.fw_supports_md = 0;
+		if ((err == NX_RCODE_CMD_INVALID) ||
+			(err == NX_RCODE_CMD_NOT_IMPL)) {
+			dev_info(&adapter->pdev->dev,
+				"Flashed firmware version does not support minidump, "
+				"minimum version required is [ %u.%u.%u ].\n ",
+				NX_MD_SUPPORT_MAJOR, NX_MD_SUPPORT_MINOR,
+				NX_MD_SUPPORT_SUBVERSION);
+		}
+		return err;
+	}
+
+	if (!adapter->mdump.md_template_size) {
+		dev_err(&adapter->pdev->dev, "Error : Invalid template size "
+		",should be non-zero.\n");
+		return -EIO;
+	}
+	adapter->mdump.md_template =
+		kmalloc(adapter->mdump.md_template_size, GFP_KERNEL);
+
+	if (!adapter->mdump.md_template) {
+		dev_err(&adapter->pdev->dev, "Unable to allocate memory "
+			"for minidump template.\n");
+		return -ENOMEM;
+	}
+
+	err = netxen_get_minidump_template(adapter);
+	if (err) {
+		if (err == NX_RCODE_CMD_NOT_IMPL)
+			adapter->mdump.fw_supports_md = 0;
+		goto free_template;
+	}
+
+	if (netxen_check_template_checksum(adapter)) {
+		dev_err(&adapter->pdev->dev, "Minidump template checksum Error\n");
+		err = -EIO;
+		goto free_template;
+	}
+
+	adapter->mdump.md_capture_mask = NX_DUMP_MASK_DEF;
+	tmp_buf = (u32 *) adapter->mdump.md_template;
+	template = (u32 *) adapter->mdump.md_template;
+	for (i = 0; i < adapter->mdump.md_template_size/sizeof(u32); i++)
+		*template++ = __le32_to_cpu(*tmp_buf++);
+	hdr = (struct netxen_minidump_template_hdr *)
+				adapter->mdump.md_template;
+	adapter->mdump.md_capture_buff = NULL;
+	adapter->mdump.fw_supports_md = 1;
+	adapter->mdump.md_enabled = 1;
+
+	return err;
+
+free_template:
+	kfree(adapter->mdump.md_template);
+	adapter->mdump.md_template = NULL;
+	return err;
+}
+
+
 int
 nx_fw_cmd_set_mtu(struct netxen_adapter *adapter, int mtu)
 {
 	u32 rcode = NX_RCODE_SUCCESS;
 	struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
+	struct netxen_cmd_args cmd;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.req.cmd = NX_CDRP_CMD_SET_MTU;
+	cmd.req.arg1 = recv_ctx->context_id;
+	cmd.req.arg2 = mtu;
+	cmd.req.arg3 = 0;
 
 	if (recv_ctx->state == NX_HOST_CTX_STATE_ACTIVE)
-		rcode = netxen_issue_cmd(adapter,
-				adapter->ahw.pci_func,
-				NXHAL_VERSION,
-				recv_ctx->context_id,
-				mtu,
-				0,
-				NX_CDRP_CMD_SET_MTU);
+		netxen_issue_cmd(adapter, &cmd);
 
 	if (rcode != NX_RCODE_SUCCESS)
 		return -EIO;
@@ -116,15 +266,14 @@ int
 nx_fw_cmd_set_gbe_port(struct netxen_adapter *adapter,
 			u32 speed, u32 duplex, u32 autoneg)
 {
-
-	return netxen_issue_cmd(adapter,
-				adapter->ahw.pci_func,
-				NXHAL_VERSION,
-				speed,
-				duplex,
-				autoneg,
-				NX_CDRP_CMD_CONFIG_GBE_PORT);
-
+	struct netxen_cmd_args cmd;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.req.cmd = NX_CDRP_CMD_CONFIG_GBE_PORT;
+	cmd.req.arg1 = speed;
+	cmd.req.arg2 = duplex;
+	cmd.req.arg3 = autoneg;
+	return netxen_issue_cmd(adapter, &cmd);
 }
 
 static int
@@ -139,6 +288,7 @@ nx_fw_cmd_create_rx_ctx(struct netxen_adapter *adapter)
 	nx_cardrsp_sds_ring_t *prsp_sds;
 	struct nx_host_rds_ring *rds_ring;
 	struct nx_host_sds_ring *sds_ring;
+	struct netxen_cmd_args cmd;
 
 	dma_addr_t hostrq_phys_addr, cardrsp_phys_addr;
 	u64 phys_addr;
@@ -218,13 +368,12 @@ nx_fw_cmd_create_rx_ctx(struct netxen_adapter *adapter)
 	}
 
 	phys_addr = hostrq_phys_addr;
-	err = netxen_issue_cmd(adapter,
-			adapter->ahw.pci_func,
-			NXHAL_VERSION,
-			(u32)(phys_addr >> 32),
-			(u32)(phys_addr & 0xffffffff),
-			rq_size,
-			NX_CDRP_CMD_CREATE_RX_CTX);
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.req.arg1 = (u32)(phys_addr >> 32);
+	cmd.req.arg2 = (u32)(phys_addr & 0xffffffff);
+	cmd.req.arg3 = rq_size;
+	cmd.req.cmd = NX_CDRP_CMD_CREATE_RX_CTX;
+	err = netxen_issue_cmd(adapter, &cmd);
 	if (err) {
 		printk(KERN_WARNING
 			"Failed to create rx ctx in firmware%d\n", err);
@@ -273,15 +422,15 @@ static void
 nx_fw_cmd_destroy_rx_ctx(struct netxen_adapter *adapter)
 {
 	struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
+	struct netxen_cmd_args cmd;
 
-	if (netxen_issue_cmd(adapter,
-			adapter->ahw.pci_func,
-			NXHAL_VERSION,
-			recv_ctx->context_id,
-			NX_DESTROY_CTX_RESET,
-			0,
-			NX_CDRP_CMD_DESTROY_RX_CTX)) {
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.req.arg1 = recv_ctx->context_id;
+	cmd.req.arg2 = NX_DESTROY_CTX_RESET;
+	cmd.req.arg3 = 0;
+	cmd.req.cmd = NX_CDRP_CMD_DESTROY_RX_CTX;
 
+	if (netxen_issue_cmd(adapter, &cmd)) {
 		printk(KERN_WARNING
 			"%s: Failed to destroy rx ctx in firmware\n",
 			netxen_nic_driver_name);
@@ -302,6 +451,7 @@ nx_fw_cmd_create_tx_ctx(struct netxen_adapter *adapter)
 	dma_addr_t	rq_phys_addr, rsp_phys_addr;
 	struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
 	struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
+	struct netxen_cmd_args cmd;
 
 	rq_size = SIZEOF_HOSTRQ_TX(nx_hostrq_tx_ctx_t);
 	rq_addr = pci_alloc_consistent(adapter->pdev,
@@ -345,13 +495,12 @@ nx_fw_cmd_create_tx_ctx(struct netxen_adapter *adapter)
 	prq_cds->ring_size = cpu_to_le32(tx_ring->num_desc);
 
 	phys_addr = rq_phys_addr;
-	err = netxen_issue_cmd(adapter,
-			adapter->ahw.pci_func,
-			NXHAL_VERSION,
-			(u32)(phys_addr >> 32),
-			((u32)phys_addr & 0xffffffff),
-			rq_size,
-			NX_CDRP_CMD_CREATE_TX_CTX);
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.req.arg1 = (u32)(phys_addr >> 32);
+	cmd.req.arg2 = ((u32)phys_addr & 0xffffffff);
+	cmd.req.arg3 = rq_size;
+	cmd.req.cmd = NX_CDRP_CMD_CREATE_TX_CTX;
+	err = netxen_issue_cmd(adapter, &cmd);
 
 	if (err == NX_RCODE_SUCCESS) {
 		temp = le32_to_cpu(prsp->cds_ring.host_producer_crb);
@@ -380,14 +529,14 @@ out_free_rq:
 static void
 nx_fw_cmd_destroy_tx_ctx(struct netxen_adapter *adapter)
 {
-	if (netxen_issue_cmd(adapter,
-			adapter->ahw.pci_func,
-			NXHAL_VERSION,
-			adapter->tx_context_id,
-			NX_DESTROY_CTX_RESET,
-			0,
-			NX_CDRP_CMD_DESTROY_TX_CTX)) {
-
+	struct netxen_cmd_args cmd;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.req.arg1 = adapter->tx_context_id;
+	cmd.req.arg2 = NX_DESTROY_CTX_RESET;
+	cmd.req.arg3 = 0;
+	cmd.req.cmd = NX_CDRP_CMD_DESTROY_TX_CTX;
+	if (netxen_issue_cmd(adapter, &cmd)) {
 		printk(KERN_WARNING
 			"%s: Failed to destroy tx ctx in firmware\n",
 			netxen_nic_driver_name);
@@ -398,34 +547,37 @@ int
 nx_fw_cmd_query_phy(struct netxen_adapter *adapter, u32 reg, u32 *val)
 {
 	u32 rcode;
-
-	rcode = netxen_issue_cmd(adapter,
-			adapter->ahw.pci_func,
-			NXHAL_VERSION,
-			reg,
-			0,
-			0,
-			NX_CDRP_CMD_READ_PHY);
-
+	struct netxen_cmd_args cmd;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.req.arg1 = reg;
+	cmd.req.arg2 = 0;
+	cmd.req.arg3 = 0;
+	cmd.req.cmd = NX_CDRP_CMD_READ_PHY;
+	cmd.rsp.arg1 = 1;
+	rcode = netxen_issue_cmd(adapter, &cmd);
 	if (rcode != NX_RCODE_SUCCESS)
 		return -EIO;
 
-	return NXRD32(adapter, NX_ARG1_CRB_OFFSET);
+	if (val == NULL)
+		return -EIO;
+
+	*val = cmd.rsp.arg1;
+	return 0;
 }
 
 int
 nx_fw_cmd_set_phy(struct netxen_adapter *adapter, u32 reg, u32 val)
 {
 	u32 rcode;
-
-	rcode = netxen_issue_cmd(adapter,
-			adapter->ahw.pci_func,
-			NXHAL_VERSION,
-			reg,
-			val,
-			0,
-			NX_CDRP_CMD_WRITE_PHY);
-
+	struct netxen_cmd_args cmd;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.req.arg1 = reg;
+	cmd.req.arg2 = val;
+	cmd.req.arg3 = 0;
+	cmd.req.cmd = NX_CDRP_CMD_WRITE_PHY;
+	rcode = netxen_issue_cmd(adapter, &cmd);
 	if (rcode != NX_RCODE_SUCCESS)
 		return -EIO;