[dpdk-dev] [PATCH v11 3/4] igb: add ops to support ethtool ops

[Liang-Min Larry Wang <liang-min.wang@intel.com>]

add function to support ethtool ops:
- set_mac_addr
- get_reg_length
- get_regs
- get_eeprom_length
- get_eeprom
- set_eeprom

Signed-off-by: Liang-Min Larry Wang <liang-min.wang@intel.com>
---
 drivers/net/e1000/igb_ethdev.c | 175 ++++++++++++++++++++++++++++++++
 drivers/net/e1000/igb_regs.h   | 223 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 398 insertions(+)
 create mode 100644 drivers/net/e1000/igb_regs.h

diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index 24c7510..c422b2d 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -55,6 +55,7 @@
 #include "e1000_logs.h"
 #include "base/e1000_api.h"
 #include "e1000_ethdev.h"
+#include "igb_regs.h"
 
 /*
  * Default values for port configuration
@@ -129,6 +130,8 @@ static void eth_igb_rar_set(struct rte_eth_dev *dev,
 		struct ether_addr *mac_addr,
 		uint32_t index, uint32_t pool);
 static void eth_igb_rar_clear(struct rte_eth_dev *dev, uint32_t index);
+static void eth_igb_default_mac_addr_set(struct rte_eth_dev *dev,
+		struct ether_addr *addr);
 
 static void igbvf_intr_disable(struct e1000_hw *hw);
 static int igbvf_dev_configure(struct rte_eth_dev *dev);
@@ -142,6 +145,12 @@ static int igbvf_vlan_filter_set(struct rte_eth_dev *dev,
 		uint16_t vlan_id, int on);
 static int igbvf_set_vfta(struct e1000_hw *hw, uint16_t vid, bool on);
 static void igbvf_set_vfta_all(struct rte_eth_dev *dev, bool on);
+static void igbvf_default_mac_addr_set(struct rte_eth_dev *dev,
+		struct ether_addr *addr);
+static int igbvf_get_reg_length(struct rte_eth_dev *dev);
+static int igbvf_get_regs(struct rte_eth_dev *dev,
+		struct rte_dev_reg_info *regs);
+
 static int eth_igb_rss_reta_update(struct rte_eth_dev *dev,
 				   struct rte_eth_rss_reta_entry64 *reta_conf,
 				   uint16_t reta_size);
@@ -193,6 +202,14 @@ static int eth_igb_filter_ctrl(struct rte_eth_dev *dev,
 		     enum rte_filter_type filter_type,
 		     enum rte_filter_op filter_op,
 		     void *arg);
+static int eth_igb_get_reg_length(struct rte_eth_dev *dev);
+static int eth_igb_get_regs(struct rte_eth_dev *dev,
+		struct rte_dev_reg_info *regs);
+static int eth_igb_get_eeprom_length(struct rte_eth_dev *dev);
+static int eth_igb_get_eeprom(struct rte_eth_dev *dev,
+		struct rte_dev_eeprom_info *eeprom);
+static int eth_igb_set_eeprom(struct rte_eth_dev *dev,
+		struct rte_dev_eeprom_info *eeprom);
 
 static int eth_igb_set_mc_addr_list(struct rte_eth_dev *dev,
 				    struct ether_addr *mc_addr_set,
@@ -268,12 +285,18 @@ static const struct eth_dev_ops eth_igb_ops = {
 	.flow_ctrl_set        = eth_igb_flow_ctrl_set,
 	.mac_addr_add         = eth_igb_rar_set,
 	.mac_addr_remove      = eth_igb_rar_clear,
+	.mac_addr_set         = eth_igb_default_mac_addr_set,
 	.reta_update          = eth_igb_rss_reta_update,
 	.reta_query           = eth_igb_rss_reta_query,
 	.rss_hash_update      = eth_igb_rss_hash_update,
 	.rss_hash_conf_get    = eth_igb_rss_hash_conf_get,
 	.filter_ctrl          = eth_igb_filter_ctrl,
 	.set_mc_addr_list     = eth_igb_set_mc_addr_list,
+	.get_reg_length       = eth_igb_get_reg_length,
+	.get_reg              = eth_igb_get_regs,
+	.get_eeprom_length    = eth_igb_get_eeprom_length,
+	.get_eeprom           = eth_igb_get_eeprom,
+	.set_eeprom           = eth_igb_set_eeprom,
 };
 
 /*
@@ -295,6 +318,9 @@ static const struct eth_dev_ops igbvf_eth_dev_ops = {
 	.tx_queue_setup       = eth_igb_tx_queue_setup,
 	.tx_queue_release     = eth_igb_tx_queue_release,
 	.set_mc_addr_list     = eth_igb_set_mc_addr_list,
+	.mac_addr_set         = igbvf_default_mac_addr_set,
+	.get_reg_length       = igbvf_get_reg_length,
+	.get_reg              = igbvf_get_regs,
 };
 
 /**
@@ -2113,6 +2139,14 @@ eth_igb_rar_clear(struct rte_eth_dev *dev, uint32_t index)
 	e1000_rar_set(hw, addr, index);
 }
 
+static void
+eth_igb_default_mac_addr_set(struct rte_eth_dev *dev,
+				struct ether_addr *addr)
+{
+	eth_igb_rar_clear(dev, 0);
+
+	eth_igb_rar_set(dev, (void *)addr, 0, 0);
+}
 /*
  * Virtual Function operations
  */
@@ -2347,6 +2381,17 @@ igbvf_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
 	return 0;
 }
 
+static void
+igbvf_default_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *addr)
+{
+	struct e1000_hw *hw =
+		E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+	/* index is not used by rar_set() */
+	hw->mac.ops.rar_set(hw, (void *)addr, 0);
+}
+
+
 static int
 eth_igb_rss_reta_update(struct rte_eth_dev *dev,
 			struct rte_eth_rss_reta_entry64 *reta_conf,
@@ -3660,6 +3705,136 @@ eth_igb_set_mc_addr_list(struct rte_eth_dev *dev,
 	return 0;
 }
 
+static int
+eth_igb_get_reg_length(struct rte_eth_dev *dev __rte_unused)
+{
+	int count = 0;
+	int g_ind = 0;
+	const struct reg_info *reg_group;
+
+	while ((reg_group = igb_regs[g_ind++]))
+		count += igb_reg_group_count(reg_group);
+
+	return count;
+}
+
+static int
+igbvf_get_reg_length(struct rte_eth_dev *dev __rte_unused)
+{
+	int count = 0;
+	int g_ind = 0;
+	const struct reg_info *reg_group;
+
+	while ((reg_group = igbvf_regs[g_ind++]))
+		count += igb_reg_group_count(reg_group);
+
+	return count;
+}
+
+static int
+eth_igb_get_regs(struct rte_eth_dev *dev,
+	struct rte_dev_reg_info *regs)
+{
+	struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+	uint32_t *regs_buff = regs->buf;
+	int g_ind = 0;
+	int count = 0;
+	const struct reg_info *reg_group;
+
+	/* Support only full register dump */
+	if ((regs->leng == 0) ||
+	    (regs->leng == (uint32_t)eth_igb_get_reg_length(dev))) {
+		regs->version = hw->mac.type << 24 | hw->revision_id << 16 |
+			hw->device_id;
+		while ((reg_group = igb_regs[g_ind++]))
+			count += igb_read_regs_group(dev, &regs_buff[count],
+							reg_group);
+		return 0;
+	}
+
+	return -ENOTSUP;
+}
+
+static int
+igbvf_get_regs(struct rte_eth_dev *dev,
+	struct rte_dev_reg_info *regs)
+{
+	struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+	uint32_t *regs_buff = regs->buf;
+	int g_ind = 0;
+	int count = 0;
+	const struct reg_info *reg_group;
+
+	/* Support only full register dump */
+	if ((regs->leng == 0) ||
+	    (regs->leng == (uint32_t)igbvf_get_reg_length(dev))) {
+		regs->version = hw->mac.type << 24 | hw->revision_id << 16 |
+			hw->device_id;
+		while ((reg_group = igbvf_regs[g_ind++]))
+			count += igb_read_regs_group(dev, &regs_buff[count],
+							reg_group);
+		return 0;
+	}
+
+	return -ENOTSUP;
+}
+
+static int
+eth_igb_get_eeprom_length(struct rte_eth_dev *dev)
+{
+	struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+	/* Return unit is byte count */
+	return hw->nvm.word_size * 2;
+}
+
+static int
+eth_igb_get_eeprom(struct rte_eth_dev *dev,
+	struct rte_dev_eeprom_info *in_eeprom)
+{
+	struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+	struct e1000_nvm_info *nvm = &hw->nvm;
+	uint16_t *data = in_eeprom->buf;
+	int first, leng;
+
+	first = in_eeprom->offset >> 1;
+	leng = in_eeprom->leng >> 1;
+	if ((first >= hw->nvm.word_size) ||
+	    ((first + leng) >= hw->nvm.word_size))
+		return -EINVAL;
+
+	in_eeprom->magic = hw->vendor_id |
+		((uint32_t)hw->device_id << 16);
+
+	if ((nvm->ops.read) == NULL)
+		return -ENOTSUP;
+
+	return nvm->ops.read(hw, first, leng, data);
+}
+
+static int
+eth_igb_set_eeprom(struct rte_eth_dev *dev,
+	struct rte_dev_eeprom_info *in_eeprom)
+{
+	struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+	struct e1000_nvm_info *nvm = &hw->nvm;
+	uint16_t *data = in_eeprom->buf;
+	int first, leng;
+
+	first = in_eeprom->offset >> 1;
+	leng = in_eeprom->leng >> 1;
+	if ((first >= hw->nvm.word_size) ||
+	    ((first + leng) >= hw->nvm.word_size))
+		return -EINVAL;
+
+	in_eeprom->magic = (uint32_t)hw->vendor_id |
+		((uint32_t)hw->device_id << 16);
+
+	if ((nvm->ops.write) == NULL)
+		return -ENOTSUP;
+	return nvm->ops.write(hw,  first, leng, data);
+}
+
 static struct rte_driver pmd_igb_drv = {
 	.type = PMD_PDEV,
 	.init = rte_igb_pmd_init,
diff --git a/drivers/net/e1000/igb_regs.h b/drivers/net/e1000/igb_regs.h
new file mode 100644
index 0000000..0b5e5e5
--- /dev/null
+++ b/drivers/net/e1000/igb_regs.h
@@ -0,0 +1,223 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2015 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef _IGB_REGS_H_
+#define _IGB_REGS_H_
+
+#include "e1000_ethdev.h"
+
+struct reg_info {
+	uint32_t base_addr;
+	uint32_t count;
+	uint32_t stride;
+	const char *name;
+};
+
+static const struct reg_info igb_regs_general[] = {
+	{E1000_CTRL, 1, 1, "E1000_CTRL"},
+	{E1000_STATUS, 1, 1, "E1000_STATUS"},
+	{E1000_CTRL_EXT, 1, 1, "E1000_CTRL_EXT"},
+	{E1000_MDIC, 1, 1, "E1000_MDIC"},
+	{E1000_SCTL, 1, 1, "E1000_SCTL"},
+	{E1000_CONNSW, 1, 1, "E1000_CONNSW"},
+	{E1000_VET, 1, 1, "E1000_VET"},
+	{E1000_LEDCTL, 1, 1, "E1000_LEDCTL"},
+	{E1000_PBA, 1, 1, "E1000_PBA"},
+	{E1000_PBS, 1, 1, "E1000_PBS"},
+	{E1000_FRTIMER, 1, 1, "E1000_FRTIMER"},
+	{E1000_TCPTIMER, 1, 1, "E1000_TCPTIMER"},
+	{0, 0, 0, ""}
+};
+
+static const struct reg_info igb_regs_nvm[] = {
+	{E1000_EECD, 1, 1, "E1000_EECD"},
+	{0, 0, 0, ""}
+};
+
+static const struct reg_info igb_regs_interrupt[] = {
+	{E1000_EICS, 1, 1, "E1000_EICS"},
+	{E1000_EIMS, 1, 1, "E1000_EIMS"},
+	{E1000_EIMC, 1, 1, "E1000_EIMC"},
+	{E1000_EIAC, 1, 1, "E1000_EIAC"},
+	{E1000_EIAM, 1, 1, "E1000_EIAM"},
+	{E1000_ICS, 1, 1, "E1000_ICS"},
+	{E1000_IMS, 1, 1, "E1000_IMS"},
+	{E1000_IMC, 1, 1, "E1000_IMC"},
+	{E1000_IAC, 1, 1, "E1000_IAC"},
+	{E1000_IAM,  1, 1, "E1000_IAM"},
+	{E1000_IMIRVP, 1, 1, "E1000_IMIRVP"},
+	{E1000_EITR(0), 10, 4, "E1000_EITR"},
+	{E1000_IMIR(0), 8, 4, "E1000_IMIR"},
+	{E1000_IMIREXT(0), 8, 4, "E1000_IMIREXT"},
+	{0, 0, 0, ""}
+};
+
+static const struct reg_info igb_regs_fctl[] = {
+	{E1000_FCAL, 1, 1, "E1000_FCAL"},
+	{E1000_FCAH, 1, 1, "E1000_FCAH"},
+	{E1000_FCTTV, 1, 1, "E1000_FCTTV"},
+	{E1000_FCRTL, 1, 1, "E1000_FCRTL"},
+	{E1000_FCRTH, 1, 1, "E1000_FCRTH"},
+	{E1000_FCRTV, 1, 1, "E1000_FCRTV"},
+	{0, 0, 0, ""}
+};
+
+static const struct reg_info igb_regs_rxdma[] = {
+	{E1000_RDBAL(0), 4, 0x100, "E1000_RDBAL"},
+	{E1000_RDBAH(0), 4, 0x100, "E1000_RDBAH"},
+	{E1000_RDLEN(0), 4, 0x100, "E1000_RDLEN"},
+	{E1000_RDH(0), 4, 0x100, "E1000_RDH"},
+	{E1000_RDT(0), 4, 0x100, "E1000_RDT"},
+	{E1000_RXCTL(0), 4, 0x100, "E1000_RXCTL"},
+	{E1000_SRRCTL(0), 4, 0x100, "E1000_SRRCTL"},
+	{E1000_DCA_RXCTRL(0), 4, 0x100, "E1000_DCA_RXCTRL"},
+	{0, 0, 0, ""}
+};
+
+static const struct reg_info igb_regs_rx[] = {
+	{E1000_RCTL, 1, 1, "E1000_RCTL"},
+	{E1000_RXCSUM, 1, 1, "E1000_RXCSUM"},
+	{E1000_RLPML, 1, 1, "E1000_RLPML"},
+	{E1000_RFCTL, 1, 1, "E1000_RFCTL"},
+	{E1000_MRQC, 1, 1, "E1000_MRQC"},
+	{E1000_VT_CTL, 1, 1, "E1000_VT_CTL"},
+	{E1000_RAL(0), 16, 8, "E1000_RAL"},
+	{E1000_RAH(0), 16, 8, "E1000_RAH"},
+	{0, 0, 0, ""}
+};
+
+static const struct reg_info igb_regs_tx[] = {
+	{E1000_TCTL, 1, 1, "E1000_TCTL"},
+	{E1000_TCTL_EXT, 1, 1, "E1000_TCTL_EXT"},
+	{E1000_TIPG, 1, 1, "E1000_TIPG"},
+	{E1000_DTXCTL, 1, 1, "E1000_DTXCTL"},
+	{E1000_TDBAL(0), 4, 0x100, "E1000_TDBAL"},
+	{E1000_TDBAH(0), 4, 0x100, "E1000_TDBAH"},
+	{E1000_TDLEN(0), 4, 0x100, "E1000_TDLEN"},
+	{E1000_TDH(0), 4, 0x100, "E1000_TDLEN"},
+	{E1000_TDT(0), 4, 0x100, "E1000_TDT"},
+	{E1000_TXDCTL(0), 4, 0x100, "E1000_TXDCTL"},
+	{E1000_TDWBAL(0), 4, 0x100, "E1000_TDWBAL"},
+	{E1000_TDWBAH(0), 4, 0x100, "E1000_TDWBAH"},
+	{E1000_DCA_TXCTRL(0), 4, 0x100, "E1000_DCA_TXCTRL"},
+	{E1000_TDFH, 1, 1, "E1000_TDFH"},
+	{E1000_TDFT, 1, 1, "E1000_TDFT"},
+	{E1000_TDFHS, 1, 1, "E1000_TDFHS"},
+	{E1000_TDFPC, 1, 1, "E1000_TDFPC"},
+	{0, 0, 0, ""}
+};
+
+static const struct reg_info igb_regs_wakeup[] = {
+	{E1000_WUC, 1, 1, "E1000_WUC"},
+	{E1000_WUFC, 1, 1, "E1000_WUFC"},
+	{E1000_WUS, 1, 1, "E1000_WUS"},
+	{E1000_IPAV, 1, 1, "E1000_IPAV"},
+	{E1000_WUPL, 1, 1, "E1000_WUPL"},
+	{E1000_IP4AT_REG(0), 4, 8, "E1000_IP4AT_REG"},
+	{E1000_IP6AT_REG(0), 4, 4, "E1000_IP6AT_REG"},
+	{E1000_WUPM_REG(0), 4, 4, "E1000_WUPM_REG"},
+	{E1000_FFMT_REG(0), 4, 8, "E1000_FFMT_REG"},
+	{E1000_FFVT_REG(0), 4, 8, "E1000_FFVT_REG"},
+	{E1000_FFLT_REG(0), 4, 8, "E1000_FFLT_REG"},
+	{0, 0, 0, ""}
+};
+
+static const struct reg_info igb_regs_mac[] = {
+	{E1000_PCS_CFG0, 1, 1, "E1000_PCS_CFG0"},
+	{E1000_PCS_LCTL, 1, 1, "E1000_PCS_LCTL"},
+	{E1000_PCS_LSTAT, 1, 1, "E1000_PCS_LSTAT"},
+	{E1000_PCS_ANADV, 1, 1, "E1000_PCS_ANADV"},
+	{E1000_PCS_LPAB, 1, 1, "E1000_PCS_LPAB"},
+	{E1000_PCS_NPTX, 1, 1, "E1000_PCS_NPTX"},
+	{E1000_PCS_LPABNP, 1, 1, "E1000_PCS_LPABNP"},
+	{0, 0, 0, ""}
+};
+
+static const struct reg_info *igb_regs[] = {
+				igb_regs_general,
+				igb_regs_nvm,
+				igb_regs_interrupt,
+				igb_regs_fctl,
+				igb_regs_rxdma,
+				igb_regs_rx,
+				igb_regs_tx,
+				igb_regs_wakeup,
+				igb_regs_mac,
+				NULL};
+
+/* FIXME: reading igb_regs_interrupt results side-effect which doesn't
+ * work with VFIO; re-install igb_regs_interrupt once issue is resolved.
+ */
+static const struct reg_info *igbvf_regs[] = {
+				igb_regs_general,
+				igb_regs_rxdma,
+				igb_regs_tx,
+				NULL};
+
+static inline int
+igb_read_regs(struct e1000_hw *hw, const struct reg_info *reg,
+	uint32_t *reg_buf)
+{
+	unsigned int i;
+
+	for (i = 0; i < reg->count; i++) {
+		reg_buf[i] = E1000_READ_REG(hw,
+				reg->base_addr + i * reg->stride);
+	}
+	return reg->count;
+};
+
+static inline int
+igb_reg_group_count(const struct reg_info *regs)
+{
+	int count = 0;
+	int i = 0;
+
+	while (regs[i].count)
+		count += regs[i++].count;
+	return count;
+};
+
+static inline int
+igb_read_regs_group(struct rte_eth_dev *dev, uint32_t *reg_buf,
+		const struct reg_info *regs)
+{
+	int count = 0;
+	int i = 0;
+	struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+	while (regs[i].count)
+		count += igb_read_regs(hw, &regs[i++], &reg_buf[count]);
+	return count;
+};
+
+#endif /* _IGB_REGS_H_ */
-- 
2.1.4