Thread (20 messages) 20 messages, 1 author, 2012-09-20

[PATCH v1 08/19] qlcnic: update NIC partition interface routines

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From: Sony Chacko <hidden>
Date: 2012-09-20 01:12:42
Subsystem: networking drivers, qlogic qlcnic (1/10)gb ethernet driver, the rest · Maintainers: Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Shahed Shaikh, Manish Chopra, Linus Torvalds

Revision v1 of 13 in this series.

Revisions (13)
  1. v1
  2. v1
  3. v1
  4. v1
  5. v1
  6. v1
  7. v1
  8. v1 current
  9. v2 [diff vs current]
  10. v3 [diff vs current]
  11. v4 [diff vs current]
  12. v5 [diff vs current]
  13. v6 [diff vs current]
From: Sony Chacko <redacted>

Refactor 82xx driver to support new adapter - Qlogic 83XX CNA

Update routines to support variable number of NIC partitions

Signed-off-by: Rajesh Borundia <redacted>
Signed-off-by: Sritej Velaga <redacted>
Signed-off-by: Sony Chacko <redacted>
---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic.h      |    2 +
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c  |    3 +
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c |  104 +++++++++++++--------
 3 files changed, 69 insertions(+), 40 deletions(-)
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index b68ea92..2bb91b4 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -482,6 +482,7 @@ struct qlcnic_hardware_context {
 	u16 max_rx_ques;
 	u16 max_mtu;
 	u16 msg_enable;
+	u16 act_pci_func;
 
 	u32 capabilities;
 	u32 temp;
@@ -1117,6 +1118,7 @@ struct qlcnic_npar_info {
 	u8	mac_anti_spoof;
 	u8	promisc_mode;
 	u8	offload_flags;
+	u8      pci_func;
 };
 
 struct qlcnic_eswitch {
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
index 0ca8fe5..ed7ce0e 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
@@ -775,11 +775,14 @@ int qlcnic_82xx_get_pci_info(struct qlcnic_adapter *adapter,
 	cmd.req.arg[3] = pci_size;
 	err = qlcnic_issue_cmd(adapter, &cmd);
 
+	adapter->ahw->act_pci_func = 0;
 	if (err == QLCNIC_RCODE_SUCCESS) {
 		for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++, npar++, pci_info++) {
 			pci_info->id = le16_to_cpu(npar->id);
 			pci_info->active = le16_to_cpu(npar->active);
 			pci_info->type = le16_to_cpu(npar->type);
+			if (pci_info->type == QLCNIC_TYPE_NIC)
+				adapter->ahw->act_pci_func++;
 			pci_info->default_port =
 				le16_to_cpu(npar->default_port);
 			pci_info->tx_min_bw =
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 9076f49..b6b0e35 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -524,19 +524,26 @@ qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
 		iounmap(ahw->pci_base0);
 }
 
-static int
+int
 qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 {
 	struct qlcnic_pci_info *pci_info;
-	int i, ret = 0;
+	int i, ret = 0, j = 0;
+	u16 act_pci_func;
 	u8 pfn;
 
 	pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
 	if (!pci_info)
 		return -ENOMEM;
 
+	ret = qlcnic_get_pci_info(adapter, pci_info);
+	if (ret)
+		goto err_pci_info;
+
+	act_pci_func = adapter->ahw->act_pci_func;
+
 	adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
-				QLCNIC_MAX_PCI_FUNC, GFP_KERNEL);
+				 act_pci_func, GFP_KERNEL);
 	if (!adapter->npars) {
 		ret = -ENOMEM;
 		goto err_pci_info;
@@ -549,21 +556,25 @@ qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 		goto err_npars;
 	}
 
-	ret = qlcnic_get_pci_info(adapter, pci_info);
-	if (ret)
-		goto err_eswitch;
-
 	for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
 		pfn = pci_info[i].id;
+
 		if (pfn >= QLCNIC_MAX_PCI_FUNC) {
 			ret = QL_STATUS_INVALID_PARAM;
 			goto err_eswitch;
 		}
-		adapter->npars[pfn].active = (u8)pci_info[i].active;
-		adapter->npars[pfn].type = (u8)pci_info[i].type;
-		adapter->npars[pfn].phy_port = (u8)pci_info[i].default_port;
-		adapter->npars[pfn].min_bw = pci_info[i].tx_min_bw;
-		adapter->npars[pfn].max_bw = pci_info[i].tx_max_bw;
+
+		if (!pci_info[i].active ||
+				(pci_info[i].type != QLCNIC_TYPE_NIC))
+			continue;
+
+		adapter->npars[j].pci_func = pfn;
+		adapter->npars[j].active = (u8)pci_info[i].active;
+		adapter->npars[j].type = (u8)pci_info[i].type;
+		adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
+		adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
+		adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
+		j++;
 	}
 
 	for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
@@ -589,32 +600,31 @@ qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
 {
 	u8 id;
 	u32 ref_count;
-	int i, err, ret = 1;
+	int i, ret = 1;
 	u32 data = QLCNIC_MGMT_FUNC;
-	void __iomem *priv_op = adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE;
+	struct qlcnic_hardware_context *ahw = adapter->ahw;
 
 	/* If other drivers are not in use set their privilege level */
-	ref_count = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE, &err);
+	ref_count = QLCRD(adapter, QLCNIC_CRB_DRV_ACTIVE);
 	ret = qlcnic_api_lock(adapter);
 	if (ret)
 		goto err_lock;
 
 	if (qlcnic_config_npars) {
-		for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
-			id = i;
-			if (adapter->npars[i].type != QLCNIC_TYPE_NIC ||
-				id == adapter->ahw->pci_func)
+		for (i = 0; i < ahw->act_pci_func; i++) {
+			id = adapter->npars[i].pci_func;
+			if (id == ahw->pci_func)
 				continue;
 			data |= (qlcnic_config_npars &
 					QLC_DEV_SET_DRV(0xf, id));
 		}
 	} else {
-		data = readl(priv_op);
-		data = (data & ~QLC_DEV_SET_DRV(0xf, adapter->ahw->pci_func)) |
+		data = QLCRD(adapter, QLCNIC_DRV_OP_MODE);
+		data = (data & ~QLC_DEV_SET_DRV(0xf, ahw->pci_func)) |
 			(QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
-			adapter->ahw->pci_func));
+			ahw->pci_func));
 	}
-	writel(data, priv_op);
+	QLCWR(adapter, QLCNIC_DRV_OP_MODE, data);
 	qlcnic_api_unlock(adapter);
 err_lock:
 	return ret;
@@ -957,7 +967,7 @@ qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
 	return err;
 }
 
-static int
+int
 qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
 {
 	struct qlcnic_esw_func_cfg esw_cfg;
@@ -967,16 +977,16 @@ qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
 	if (adapter->need_fw_reset)
 		return 0;
 
-	for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
-		if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
-			continue;
+	for (i = 0; i < adapter->ahw->act_pci_func; i++) {
 		memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
-		esw_cfg.pci_func = i;
-		esw_cfg.offload_flags = BIT_0;
+		esw_cfg.pci_func = adapter->npars[i].pci_func;
 		esw_cfg.mac_override = BIT_0;
 		esw_cfg.promisc_mode = BIT_0;
-		if (adapter->ahw->capabilities  & QLCNIC_FW_CAPABILITY_TSO)
-			esw_cfg.offload_flags |= (BIT_1 | BIT_2);
+		if (QLCNIC_IS_82XX(adapter)) {
+			esw_cfg.offload_flags = BIT_0;
+			if (QLCNIC_IS_TSO_CAPABLE(adapter))
+				esw_cfg.offload_flags |= (BIT_1 | BIT_2);
+		}
 		if (qlcnic_config_switch_port(adapter, &esw_cfg))
 			return -EIO;
 		npar = &adapter->npars[i];
@@ -1014,22 +1024,24 @@ qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
 	return 0;
 }
 
-static int
+int
 qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
 {
 	int i, err;
 	struct qlcnic_npar_info *npar;
 	struct qlcnic_info nic_info;
+	u8 pci_func;
 
-	if (!adapter->need_fw_reset)
-		return 0;
+	if (QLCNIC_IS_82XX(adapter))
+		if (!adapter->need_fw_reset)
+			return 0;
 
 	/* Set the NPAR config data after FW reset */
-	for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
+	for (i = 0; i < adapter->ahw->act_pci_func; i++) {
 		npar = &adapter->npars[i];
-		if (npar->type != QLCNIC_TYPE_NIC)
-			continue;
-		err = qlcnic_get_nic_info(adapter, &nic_info, i);
+		pci_func = npar->pci_func;
+		err = qlcnic_get_nic_info(adapter,
+					  &nic_info, pci_func);
 		if (err)
 			return err;
 		nic_info.min_tx_bw = npar->min_bw;
@@ -1040,11 +1052,12 @@ qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
 
 		if (npar->enable_pm) {
 			err = qlcnic_config_port_mirroring(adapter,
-							npar->dest_npar, 1, i);
+							   npar->dest_npar, 1,
+							   pci_func);
 			if (err)
 				return err;
 		}
-		err = qlcnic_reset_eswitch_config(adapter, npar, i);
+		err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
 		if (err)
 			return err;
 	}
@@ -1618,6 +1631,17 @@ static int qlcnic_set_dma_mask(struct pci_dev *pdev, u8 *pci_using_dac)
 	return 0;
 }
 
+int qlcnic_is_valid_nic_func(struct qlcnic_adapter *adapter, u8 pci_func)
+{
+	int i;
+	for (i = 0; i < adapter->ahw->act_pci_func; i++) {
+		if (adapter->npars[i].pci_func == pci_func)
+			return i;
+	}
+
+	return -1;
+}
+
 static int __devinit
 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
-- 
1.7.1
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