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Message-ID: <20140918223939.10373.78252.stgit@ahduyck-bv4.jf.intel.com>
Date: Thu, 18 Sep 2014 18:39:42 -0400
From: Alexander Duyck <alexander.h.duyck@...el.com>
To: davem@...emloft.net
Cc: nhorman@...hat.com, netdev@...r.kernel.org,
john.fastabend@...il.com, matthew.vick@...el.com,
jeffrey.t.kirsher@...el.com, sassmann@...hat.com
Subject: [net-next PATCH 23/29] fm10k: Add support for VF
This patch provides the functions necessary to configure the VF making use
of the same API pointers as the PF.
Signed-off-by: Alexander Duyck <alexander.h.duyck@...el.com>
---
drivers/net/ethernet/intel/fm10k/Makefile | 2
drivers/net/ethernet/intel/fm10k/fm10k.h | 4
drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c | 114 +++++
drivers/net/ethernet/intel/fm10k/fm10k_mbx.c | 4
drivers/net/ethernet/intel/fm10k/fm10k_netdev.c | 15 +
drivers/net/ethernet/intel/fm10k/fm10k_pci.c | 102 ++++
drivers/net/ethernet/intel/fm10k/fm10k_type.h | 9
drivers/net/ethernet/intel/fm10k/fm10k_vf.c | 523 ++++++++++++++++++++++
drivers/net/ethernet/intel/fm10k/fm10k_vf.h | 68 +++
9 files changed, 837 insertions(+), 4 deletions(-)
create mode 100644 drivers/net/ethernet/intel/fm10k/fm10k_vf.c
create mode 100644 drivers/net/ethernet/intel/fm10k/fm10k_vf.h
diff --git a/drivers/net/ethernet/intel/fm10k/Makefile b/drivers/net/ethernet/intel/fm10k/Makefile
index b72815e..f70893a 100644
--- a/drivers/net/ethernet/intel/fm10k/Makefile
+++ b/drivers/net/ethernet/intel/fm10k/Makefile
@@ -28,5 +28,5 @@
obj-$(CONFIG_FM10K) += fm10k.o
fm10k-objs := fm10k_main.o fm10k_common.o fm10k_pci.o \
- fm10k_netdev.o fm10k_ethtool.o fm10k_pf.o \
+ fm10k_netdev.o fm10k_ethtool.o fm10k_pf.o fm10k_vf.o \
fm10k_mbx.o fm10k_tlv.o
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k.h b/drivers/net/ethernet/intel/fm10k/fm10k.h
index 82efaed..0c4a873 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k.h
+++ b/drivers/net/ethernet/intel/fm10k/fm10k.h
@@ -28,6 +28,7 @@
#include <linux/pci.h>
#include "fm10k_pf.h"
+#include "fm10k_vf.h"
#define FM10K_MAX_JUMBO_FRAME_SIZE 15358 /* Maximum supported size 15K */
@@ -180,12 +181,13 @@ static inline struct netdev_queue *txring_txq(const struct fm10k_ring *ring)
#define MIN_Q_VECTORS 1
enum fm10k_non_q_vectors {
FM10K_MBX_VECTOR,
+#define NON_Q_VECTORS_VF NON_Q_VECTORS_PF
NON_Q_VECTORS_PF
};
#define NON_Q_VECTORS(hw) (((hw)->mac.type == fm10k_mac_pf) ? \
NON_Q_VECTORS_PF : \
- 0)
+ NON_Q_VECTORS_VF)
#define MIN_MSIX_COUNT(hw) (MIN_Q_VECTORS + NON_Q_VECTORS(hw))
struct fm10k_q_vector {
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c b/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c
index 54e8ebd..42beb89 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c
@@ -102,6 +102,17 @@ static const struct fm10k_stats fm10k_gstrings_stats[] = {
FM10K_NETDEV_STATS_LEN + \
FM10K_QUEUE_STATS_LEN)
+static const char fm10k_gstrings_test[][ETH_GSTRING_LEN] = {
+ "Mailbox test (on/offline)"
+};
+
+#define FM10K_TEST_LEN (sizeof(fm10k_gstrings_test) / ETH_GSTRING_LEN)
+
+enum fm10k_self_test_types {
+ FM10K_TEST_MBX,
+ FM10K_TEST_MAX = FM10K_TEST_LEN
+};
+
static void fm10k_get_strings(struct net_device *dev, u32 stringset,
u8 *data)
{
@@ -109,6 +120,10 @@ static void fm10k_get_strings(struct net_device *dev, u32 stringset,
int i;
switch (stringset) {
+ case ETH_SS_TEST:
+ memcpy(data, *fm10k_gstrings_test,
+ FM10K_TEST_LEN * ETH_GSTRING_LEN);
+ break;
case ETH_SS_STATS:
for (i = 0; i < FM10K_NETDEV_STATS_LEN; i++) {
memcpy(p, fm10k_gstrings_net_stats[i].stat_string,
@@ -138,6 +153,8 @@ static void fm10k_get_strings(struct net_device *dev, u32 stringset,
static int fm10k_get_sset_count(struct net_device *dev, int sset)
{
switch (sset) {
+ case ETH_SS_TEST:
+ return FM10K_TEST_LEN;
case ETH_SS_STATS:
return FM10K_STATS_LEN;
default:
@@ -288,6 +305,28 @@ static void fm10k_get_regs(struct net_device *netdev,
*(buff++) = fm10k_read_reg(hw, FM10K_ITR(i));
break;
+ case fm10k_mac_vf:
+ /* General VF registers */
+ *(buff++) = fm10k_read_reg(hw, FM10K_VFCTRL);
+ *(buff++) = fm10k_read_reg(hw, FM10K_VFINT_MAP);
+ *(buff++) = fm10k_read_reg(hw, FM10K_VFSYSTIME);
+
+ /* Interrupt Throttling Registers */
+ for (i = 0; i < 8; i++)
+ *(buff++) = fm10k_read_reg(hw, FM10K_VFITR(i));
+
+ fm10k_get_reg_vsi(hw, buff, 0);
+ buff += FM10K_REGS_LEN_VSI;
+
+ for (i = 0; i < FM10K_MAX_QUEUES_POOL; i++) {
+ if (i < hw->mac.max_queues)
+ fm10k_get_reg_q(hw, buff, i);
+ else
+ memset(buff, 0, sizeof(u32) * FM10K_REGS_LEN_Q);
+ buff += FM10K_REGS_LEN_Q;
+ }
+
+ break;
default:
return;
}
@@ -296,6 +335,8 @@ static void fm10k_get_regs(struct net_device *netdev,
/* If function above adds more registers these define need to be updated */
#define FM10K_REGS_LEN_PF \
(162 + (65 * FM10K_REGS_LEN_VSI) + (FM10K_MAX_QUEUES_PF * FM10K_REGS_LEN_Q))
+#define FM10K_REGS_LEN_VF \
+(11 + FM10K_REGS_LEN_VSI + (FM10K_MAX_QUEUES_POOL * FM10K_REGS_LEN_Q))
static int fm10k_get_regs_len(struct net_device *netdev)
{
@@ -305,6 +346,8 @@ static int fm10k_get_regs_len(struct net_device *netdev)
switch (hw->mac.type) {
case fm10k_mac_pf:
return FM10K_REGS_LEN_PF * sizeof(u32);
+ case fm10k_mac_vf:
+ return FM10K_REGS_LEN_VF * sizeof(u32);
default:
return 0;
}
@@ -734,6 +777,76 @@ static int fm10k_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
return ret;
}
+static int fm10k_mbx_test(struct fm10k_intfc *interface, u64 *data)
+{
+ struct fm10k_hw *hw = &interface->hw;
+ struct fm10k_mbx_info *mbx = &hw->mbx;
+ u32 attr_flag, test_msg[6];
+ unsigned long timeout;
+ int err;
+
+ /* For now this is a VF only feature */
+ if (hw->mac.type != fm10k_mac_vf)
+ return 0;
+
+ /* loop through both nested and unnested attribute types */
+ for (attr_flag = (1 << FM10K_TEST_MSG_UNSET);
+ attr_flag < (1 << (2 * FM10K_TEST_MSG_NESTED));
+ attr_flag += attr_flag) {
+ /* generate message to be tested */
+ fm10k_tlv_msg_test_create(test_msg, attr_flag);
+
+ fm10k_mbx_lock(interface);
+ mbx->test_result = FM10K_NOT_IMPLEMENTED;
+ err = mbx->ops.enqueue_tx(hw, mbx, test_msg);
+ fm10k_mbx_unlock(interface);
+
+ /* wait up to 1 second for response */
+ timeout = jiffies + HZ;
+ do {
+ if (err < 0)
+ goto err_out;
+
+ usleep_range(500, 1000);
+
+ fm10k_mbx_lock(interface);
+ mbx->ops.process(hw, mbx);
+ fm10k_mbx_unlock(interface);
+
+ err = mbx->test_result;
+ if (!err)
+ break;
+ } while (time_is_after_jiffies(timeout));
+
+ /* reporting errors */
+ if (err)
+ goto err_out;
+ }
+
+err_out:
+ *data = err < 0 ? (attr_flag) : (err > 0);
+ return err;
+}
+
+static void fm10k_self_test(struct net_device *dev,
+ struct ethtool_test *eth_test, u64 *data)
+{
+ struct fm10k_intfc *interface = netdev_priv(dev);
+ struct fm10k_hw *hw = &interface->hw;
+
+ memset(data, 0, sizeof(*data) * FM10K_TEST_LEN);
+
+ if (FM10K_REMOVED(hw)) {
+ netif_err(interface, drv, dev,
+ "Interface removed - test blocked\n");
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+ return;
+ }
+
+ if (fm10k_mbx_test(interface, &data[FM10K_TEST_MBX]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+}
+
static u32 fm10k_get_reta_size(struct net_device *netdev)
{
return FM10K_RETA_SIZE * FM10K_RETA_ENTRIES_PER_REG;
@@ -911,6 +1024,7 @@ static const struct ethtool_ops fm10k_ethtool_ops = {
.set_rxnfc = fm10k_set_rxnfc,
.get_regs = fm10k_get_regs,
.get_regs_len = fm10k_get_regs_len,
+ .self_test = fm10k_self_test,
.get_rxfh_indir_size = fm10k_get_reta_size,
.get_rxfh_key_size = fm10k_get_rssrk_size,
.get_rxfh = fm10k_get_rssh,
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_mbx.c b/drivers/net/ethernet/intel/fm10k/fm10k_mbx.c
index a6a66fd..14a4ea7 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_mbx.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_mbx.c
@@ -1517,6 +1517,10 @@ s32 fm10k_pfvf_mbx_init(struct fm10k_hw *hw, struct fm10k_mbx_info *mbx,
{
/* initialize registers */
switch (hw->mac.type) {
+ case fm10k_mac_vf:
+ mbx->mbx_reg = FM10K_VFMBX;
+ mbx->mbmem_reg = FM10K_VFMBMEM(FM10K_VFMBMEM_VF_XOR);
+ break;
case fm10k_mac_pf:
/* there are only 64 VF <-> PF mailboxes */
if (id < 64) {
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c b/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c
index af30e25..057fcb0 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c
@@ -972,6 +972,21 @@ void fm10k_restore_rx_state(struct fm10k_intfc *interface)
int xcast_mode;
u16 vid, glort;
+ /* restore our address if perm_addr is set */
+ if (hw->mac.type == fm10k_mac_vf) {
+ if (is_valid_ether_addr(hw->mac.perm_addr)) {
+ ether_addr_copy(hw->mac.addr, hw->mac.perm_addr);
+ ether_addr_copy(netdev->perm_addr, hw->mac.perm_addr);
+ ether_addr_copy(netdev->dev_addr, hw->mac.perm_addr);
+ netdev->addr_assign_type &= ~NET_ADDR_RANDOM;
+ }
+
+ if (hw->mac.vlan_override)
+ netdev->features &= ~NETIF_F_HW_VLAN_CTAG_RX;
+ else
+ netdev->features |= NETIF_F_HW_VLAN_CTAG_RX;
+ }
+
/* record glort for this interface */
glort = interface->glort;
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
index c61241a..ec34438 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
@@ -25,6 +25,7 @@
static const struct fm10k_info *fm10k_info_tbl[] = {
[fm10k_device_pf] = &fm10k_pf_info,
+ [fm10k_device_vf] = &fm10k_vf_info,
};
/**
@@ -38,6 +39,7 @@ static const struct fm10k_info *fm10k_info_tbl[] = {
*/
static const struct pci_device_id fm10k_pci_tbl[] = {
{ PCI_VDEVICE(INTEL, FM10K_DEV_ID_PF), fm10k_device_pf },
+ { PCI_VDEVICE(INTEL, FM10K_DEV_ID_VF), fm10k_device_vf },
/* required last entry */
{ 0, }
};
@@ -805,6 +807,28 @@ static irqreturn_t fm10k_msix_clean_rings(int irq, void *data)
return IRQ_HANDLED;
}
+static irqreturn_t fm10k_msix_mbx_vf(int irq, void *data)
+{
+ struct fm10k_intfc *interface = data;
+ struct fm10k_hw *hw = &interface->hw;
+ struct fm10k_mbx_info *mbx = &hw->mbx;
+
+ /* re-enable mailbox interrupt and indicate 20us delay */
+ fm10k_write_reg(hw, FM10K_VFITR(FM10K_MBX_VECTOR),
+ FM10K_ITR_ENABLE | FM10K_MBX_INT_DELAY);
+
+ /* service upstream mailbox */
+ if (fm10k_mbx_trylock(interface)) {
+ mbx->ops.process(hw, mbx);
+ fm10k_mbx_unlock(interface);
+ }
+
+ hw->mac.get_host_state = 1;
+ fm10k_service_event_schedule(interface);
+
+ return IRQ_HANDLED;
+}
+
#define FM10K_ERR_MSG(type) case (type): error = #type; break
static void fm10k_print_fault(struct fm10k_intfc *interface, int type,
struct fm10k_fault *fault)
@@ -996,6 +1020,8 @@ void fm10k_mbx_free_irq(struct fm10k_intfc *interface)
FM10K_EIMR_DISABLE(VFLR) |
FM10K_EIMR_DISABLE(MAXHOLDTIME));
itr_reg = FM10K_ITR(FM10K_MBX_VECTOR);
+ } else {
+ itr_reg = FM10K_VFITR(FM10K_MBX_VECTOR);
}
fm10k_write_reg(hw, itr_reg, FM10K_ITR_MASK_SET);
@@ -1003,6 +1029,33 @@ void fm10k_mbx_free_irq(struct fm10k_intfc *interface)
free_irq(entry->vector, interface);
}
+static s32 fm10k_mbx_mac_addr(struct fm10k_hw *hw, u32 **results,
+ struct fm10k_mbx_info *mbx)
+{
+ struct fm10k_intfc *interface = container_of(hw,
+ struct fm10k_intfc,
+ hw);
+ bool vlan_override = hw->mac.vlan_override;
+ u16 default_vid = hw->mac.default_vid;
+ s32 err;
+
+ err = fm10k_msg_mac_vlan_vf(hw, results, mbx);
+ if (err)
+ return err;
+
+ /* MAC was changed so we need reset */
+ if (is_valid_ether_addr(hw->mac.perm_addr) &&
+ memcmp(hw->mac.perm_addr, hw->mac.addr, ETH_ALEN))
+ interface->flags |= FM10K_FLAG_RESET_REQUESTED;
+
+ /* VLAN override was changed, or default VLAN changed */
+ if ((vlan_override != hw->mac.vlan_override) ||
+ (default_vid != hw->mac.default_vid))
+ interface->flags |= FM10K_FLAG_RESET_REQUESTED;
+
+ return 0;
+}
+
/* generic error handler for mailbox issues */
static s32 fm10k_mbx_error(struct fm10k_hw *hw, u32 **results,
struct fm10k_mbx_info *mbx)
@@ -1018,6 +1071,46 @@ static s32 fm10k_mbx_error(struct fm10k_hw *hw, u32 **results,
return 0;
}
+static const struct fm10k_msg_data vf_mbx_data[] = {
+ FM10K_TLV_MSG_TEST_HANDLER(fm10k_tlv_msg_test),
+ FM10K_VF_MSG_MAC_VLAN_HANDLER(fm10k_mbx_mac_addr),
+ FM10K_VF_MSG_LPORT_STATE_HANDLER(fm10k_msg_lport_state_vf),
+ FM10K_TLV_MSG_ERROR_HANDLER(fm10k_mbx_error),
+};
+
+static int fm10k_mbx_request_irq_vf(struct fm10k_intfc *interface)
+{
+ struct msix_entry *entry = &interface->msix_entries[FM10K_MBX_VECTOR];
+ struct net_device *dev = interface->netdev;
+ struct fm10k_hw *hw = &interface->hw;
+ int err;
+
+ /* Use timer0 for interrupt moderation on the mailbox */
+ u32 itr = FM10K_INT_MAP_TIMER0 | entry->entry;
+
+ /* register mailbox handlers */
+ err = hw->mbx.ops.register_handlers(&hw->mbx, vf_mbx_data);
+ if (err)
+ return err;
+
+ /* request the IRQ */
+ err = request_irq(entry->vector, fm10k_msix_mbx_vf, 0,
+ dev->name, interface);
+ if (err) {
+ netif_err(interface, probe, dev,
+ "request_irq for msix_mbx failed: %d\n", err);
+ return err;
+ }
+
+ /* map all of the interrupt sources */
+ fm10k_write_reg(hw, FM10K_VFINT_MAP, itr);
+
+ /* enable interrupt */
+ fm10k_write_reg(hw, FM10K_VFITR(entry->entry), FM10K_ITR_ENABLE);
+
+ return 0;
+}
+
static s32 fm10k_lport_map(struct fm10k_hw *hw, u32 **results,
struct fm10k_mbx_info *mbx)
{
@@ -1141,7 +1234,10 @@ int fm10k_mbx_request_irq(struct fm10k_intfc *interface)
int err;
/* enable Mailbox cause */
- err = fm10k_mbx_request_irq_pf(interface);
+ if (hw->mac.type == fm10k_mac_pf)
+ err = fm10k_mbx_request_irq_pf(interface);
+ else
+ err = fm10k_mbx_request_irq_vf(interface);
/* connect mailbox */
if (!err)
@@ -1219,7 +1315,9 @@ int fm10k_qv_request_irq(struct fm10k_intfc *interface)
}
/* Assign ITR register to q_vector */
- q_vector->itr = &interface->uc_addr[FM10K_ITR(entry->entry)];
+ q_vector->itr = (hw->mac.type == fm10k_mac_pf) ?
+ &interface->uc_addr[FM10K_ITR(entry->entry)] :
+ &interface->uc_addr[FM10K_VFITR(entry->entry)];
/* request the IRQ */
err = request_irq(entry->vector, &fm10k_msix_clean_rings, 0,
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_type.h b/drivers/net/ethernet/intel/fm10k/fm10k_type.h
index eda0c7c..cc1df60 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_type.h
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_type.h
@@ -351,6 +351,13 @@ struct fm10k_hw;
#define FM10K_QUEUE_DISABLE_TIMEOUT 100
#define FM10K_RESET_TIMEOUT 100
+/* VF registers */
+#define FM10K_VFCTRL 0x00000
+#define FM10K_VFCTRL_RST 0x00000008
+#define FM10K_VFINT_MAP 0x00030
+#define FM10K_VFSYSTIME 0x00040
+#define FM10K_VFITR(_n) ((_n) + 0x00060)
+
enum fm10k_int_source {
fm10k_int_Mailbox = 0,
fm10k_int_PCIeFault = 1,
@@ -522,6 +529,7 @@ struct fm10k_mac_ops {
enum fm10k_mac_type {
fm10k_mac_unknown = 0,
fm10k_mac_pf,
+ fm10k_mac_vf,
fm10k_num_macs
};
@@ -561,6 +569,7 @@ enum fm10k_xcast_modes {
enum fm10k_devices {
fm10k_device_pf,
+ fm10k_device_vf,
};
struct fm10k_info {
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_vf.c b/drivers/net/ethernet/intel/fm10k/fm10k_vf.c
new file mode 100644
index 0000000..25c23fc
--- /dev/null
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_vf.c
@@ -0,0 +1,523 @@
+/* Intel Ethernet Switch Host Interface Driver
+ * Copyright(c) 2013 - 2014 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Contact Information:
+ * e1000-devel Mailing List <e1000-devel@...ts.sourceforge.net>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ */
+
+#include "fm10k_vf.h"
+
+/**
+ * fm10k_stop_hw_vf - Stop Tx/Rx units
+ * @hw: pointer to hardware structure
+ *
+ **/
+static s32 fm10k_stop_hw_vf(struct fm10k_hw *hw)
+{
+ u8 *perm_addr = hw->mac.perm_addr;
+ u32 bal = 0, bah = 0;
+ s32 err;
+ u16 i;
+
+ /* we need to disable the queues before taking further steps */
+ err = fm10k_stop_hw_generic(hw);
+ if (err)
+ return err;
+
+ /* If permenant address is set then we need to restore it */
+ if (is_valid_ether_addr(perm_addr)) {
+ bal = (((u32)perm_addr[3]) << 24) |
+ (((u32)perm_addr[4]) << 16) |
+ (((u32)perm_addr[5]) << 8);
+ bah = (((u32)0xFF) << 24) |
+ (((u32)perm_addr[0]) << 16) |
+ (((u32)perm_addr[1]) << 8) |
+ ((u32)perm_addr[2]);
+ }
+
+ /* The queues have already been disabled so we just need to
+ * update their base address registers
+ */
+ for (i = 0; i < hw->mac.max_queues; i++) {
+ fm10k_write_reg(hw, FM10K_TDBAL(i), bal);
+ fm10k_write_reg(hw, FM10K_TDBAH(i), bah);
+ fm10k_write_reg(hw, FM10K_RDBAL(i), bal);
+ fm10k_write_reg(hw, FM10K_RDBAH(i), bah);
+ }
+
+ return 0;
+}
+
+/**
+ * fm10k_reset_hw_vf - VF hardware reset
+ * @hw: pointer to hardware structure
+ *
+ * This function should return the hardare to a state similar to the
+ * one it is in after just being initialized.
+ **/
+static s32 fm10k_reset_hw_vf(struct fm10k_hw *hw)
+{
+ s32 err;
+
+ /* shut down queues we own and reset DMA configuration */
+ err = fm10k_stop_hw_vf(hw);
+ if (err)
+ return err;
+
+ /* Inititate VF reset */
+ fm10k_write_reg(hw, FM10K_VFCTRL, FM10K_VFCTRL_RST);
+
+ /* Flush write and allow 100us for reset to complete */
+ fm10k_write_flush(hw);
+ udelay(FM10K_RESET_TIMEOUT);
+
+ /* Clear reset bit and verify it was cleared */
+ fm10k_write_reg(hw, FM10K_VFCTRL, 0);
+ if (fm10k_read_reg(hw, FM10K_VFCTRL) & FM10K_VFCTRL_RST)
+ err = FM10K_ERR_RESET_FAILED;
+
+ return err;
+}
+
+/**
+ * fm10k_init_hw_vf - VF hardware initialization
+ * @hw: pointer to hardware structure
+ *
+ **/
+static s32 fm10k_init_hw_vf(struct fm10k_hw *hw)
+{
+ u32 tqdloc, tqdloc0 = ~fm10k_read_reg(hw, FM10K_TQDLOC(0));
+ s32 err;
+ u16 i;
+
+ /* assume we always have at least 1 queue */
+ for (i = 1; tqdloc0 && (i < FM10K_MAX_QUEUES_POOL); i++) {
+ /* verify the Descriptor cache offsets are increasing */
+ tqdloc = ~fm10k_read_reg(hw, FM10K_TQDLOC(i));
+ if (!tqdloc || (tqdloc == tqdloc0))
+ break;
+
+ /* check to verify the PF doesn't own any of our queues */
+ if (!~fm10k_read_reg(hw, FM10K_TXQCTL(i)) ||
+ !~fm10k_read_reg(hw, FM10K_RXQCTL(i)))
+ break;
+ }
+
+ /* shut down queues we own and reset DMA configuration */
+ err = fm10k_disable_queues_generic(hw, i);
+ if (err)
+ return err;
+
+ /* record maximum queue count */
+ hw->mac.max_queues = i;
+
+ return 0;
+}
+
+/**
+ * fm10k_is_slot_appropriate_vf - Indicate appropriate slot for this SKU
+ * @hw: pointer to hardware structure
+ *
+ * Looks at the PCIe bus info to confirm whether or not this slot can support
+ * the necessary bandwidth for this device. Since the VF has no control over
+ * the "slot" it is in, always indicate that the slot is appropriate.
+ **/
+static bool fm10k_is_slot_appropriate_vf(struct fm10k_hw *hw)
+{
+ return true;
+}
+
+/* This structure defines the attibutes to be parsed below */
+const struct fm10k_tlv_attr fm10k_mac_vlan_msg_attr[] = {
+ FM10K_TLV_ATTR_U32(FM10K_MAC_VLAN_MSG_VLAN),
+ FM10K_TLV_ATTR_BOOL(FM10K_MAC_VLAN_MSG_SET),
+ FM10K_TLV_ATTR_MAC_ADDR(FM10K_MAC_VLAN_MSG_MAC),
+ FM10K_TLV_ATTR_MAC_ADDR(FM10K_MAC_VLAN_MSG_DEFAULT_MAC),
+ FM10K_TLV_ATTR_MAC_ADDR(FM10K_MAC_VLAN_MSG_MULTICAST),
+ FM10K_TLV_ATTR_LAST
+};
+
+/**
+ * fm10k_update_vlan_vf - Update status of VLAN ID in VLAN filter table
+ * @hw: pointer to hardware structure
+ * @vid: VLAN ID to add to table
+ * @vsi: Reserved, should always be 0
+ * @set: Indicates if this is a set or clear operation
+ *
+ * This function adds or removes the corresponding VLAN ID from the VLAN
+ * filter table for this VF.
+ **/
+static s32 fm10k_update_vlan_vf(struct fm10k_hw *hw, u32 vid, u8 vsi, bool set)
+{
+ struct fm10k_mbx_info *mbx = &hw->mbx;
+ u32 msg[4];
+
+ /* verify the index is not set */
+ if (vsi)
+ return FM10K_ERR_PARAM;
+
+ /* verify upper 4 bits of vid and length are 0 */
+ if ((vid << 16 | vid) >> 28)
+ return FM10K_ERR_PARAM;
+
+ /* encode set bit into the VLAN ID */
+ if (!set)
+ vid |= FM10K_VLAN_CLEAR;
+
+ /* generate VLAN request */
+ fm10k_tlv_msg_init(msg, FM10K_VF_MSG_ID_MAC_VLAN);
+ fm10k_tlv_attr_put_u32(msg, FM10K_MAC_VLAN_MSG_VLAN, vid);
+
+ /* load onto outgoing mailbox */
+ return mbx->ops.enqueue_tx(hw, mbx, msg);
+}
+
+/**
+ * fm10k_msg_mac_vlan_vf - Read device MAC address from mailbox message
+ * @hw: pointer to the HW structure
+ * @results: Attributes for message
+ * @mbx: unused mailbox data
+ *
+ * This function should determine the MAC address for the VF
+ **/
+s32 fm10k_msg_mac_vlan_vf(struct fm10k_hw *hw, u32 **results,
+ struct fm10k_mbx_info *mbx)
+{
+ u8 perm_addr[ETH_ALEN];
+ u16 vid;
+ s32 err;
+
+ /* record MAC address requested */
+ err = fm10k_tlv_attr_get_mac_vlan(
+ results[FM10K_MAC_VLAN_MSG_DEFAULT_MAC],
+ perm_addr, &vid);
+ if (err)
+ return err;
+
+ ether_addr_copy(hw->mac.perm_addr, perm_addr);
+ hw->mac.default_vid = vid & (FM10K_VLAN_TABLE_VID_MAX - 1);
+ hw->mac.vlan_override = !!(vid & FM10K_VLAN_CLEAR);
+
+ return 0;
+}
+
+/**
+ * fm10k_read_mac_addr_vf - Read device MAC address
+ * @hw: pointer to the HW structure
+ *
+ * This function should determine the MAC address for the VF
+ **/
+static s32 fm10k_read_mac_addr_vf(struct fm10k_hw *hw)
+{
+ u8 perm_addr[ETH_ALEN];
+ u32 base_addr;
+
+ base_addr = fm10k_read_reg(hw, FM10K_TDBAL(0));
+
+ /* last byte should be 0 */
+ if (base_addr << 24)
+ return FM10K_ERR_INVALID_MAC_ADDR;
+
+ perm_addr[3] = (u8)(base_addr >> 24);
+ perm_addr[4] = (u8)(base_addr >> 16);
+ perm_addr[5] = (u8)(base_addr >> 8);
+
+ base_addr = fm10k_read_reg(hw, FM10K_TDBAH(0));
+
+ /* first byte should be all 1's */
+ if ((~base_addr) >> 24)
+ return FM10K_ERR_INVALID_MAC_ADDR;
+
+ perm_addr[0] = (u8)(base_addr >> 16);
+ perm_addr[1] = (u8)(base_addr >> 8);
+ perm_addr[2] = (u8)(base_addr);
+
+ ether_addr_copy(hw->mac.perm_addr, perm_addr);
+ ether_addr_copy(hw->mac.addr, perm_addr);
+
+ return 0;
+}
+
+/**
+ * fm10k_update_uc_addr_vf - Update device unicast address
+ * @hw: pointer to the HW structure
+ * @glort: unused
+ * @mac: MAC address to add/remove from table
+ * @vid: VLAN ID to add/remove from table
+ * @add: Indicates if this is an add or remove operation
+ * @flags: flags field to indicate add and secure - unused
+ *
+ * This function is used to add or remove unicast MAC addresses for
+ * the VF.
+ **/
+static s32 fm10k_update_uc_addr_vf(struct fm10k_hw *hw, u16 glort,
+ const u8 *mac, u16 vid, bool add, u8 flags)
+{
+ struct fm10k_mbx_info *mbx = &hw->mbx;
+ u32 msg[7];
+
+ /* verify VLAN ID is valid */
+ if (vid >= FM10K_VLAN_TABLE_VID_MAX)
+ return FM10K_ERR_PARAM;
+
+ /* verify MAC address is valid */
+ if (!is_valid_ether_addr(mac))
+ return FM10K_ERR_PARAM;
+
+ /* verify we are not locked down on the MAC address */
+ if (is_valid_ether_addr(hw->mac.perm_addr) &&
+ memcmp(hw->mac.perm_addr, mac, ETH_ALEN))
+ return FM10K_ERR_PARAM;
+
+ /* add bit to notify us if this is a set of clear operation */
+ if (!add)
+ vid |= FM10K_VLAN_CLEAR;
+
+ /* generate VLAN request */
+ fm10k_tlv_msg_init(msg, FM10K_VF_MSG_ID_MAC_VLAN);
+ fm10k_tlv_attr_put_mac_vlan(msg, FM10K_MAC_VLAN_MSG_MAC, mac, vid);
+
+ /* load onto outgoing mailbox */
+ return mbx->ops.enqueue_tx(hw, mbx, msg);
+}
+
+/**
+ * fm10k_update_mc_addr_vf - Update device multicast address
+ * @hw: pointer to the HW structure
+ * @glort: unused
+ * @mac: MAC address to add/remove from table
+ * @vid: VLAN ID to add/remove from table
+ * @add: Indicates if this is an add or remove operation
+ *
+ * This function is used to add or remove multicast MAC addresses for
+ * the VF.
+ **/
+static s32 fm10k_update_mc_addr_vf(struct fm10k_hw *hw, u16 glort,
+ const u8 *mac, u16 vid, bool add)
+{
+ struct fm10k_mbx_info *mbx = &hw->mbx;
+ u32 msg[7];
+
+ /* verify VLAN ID is valid */
+ if (vid >= FM10K_VLAN_TABLE_VID_MAX)
+ return FM10K_ERR_PARAM;
+
+ /* verify multicast address is valid */
+ if (!is_multicast_ether_addr(mac))
+ return FM10K_ERR_PARAM;
+
+ /* add bit to notify us if this is a set of clear operation */
+ if (!add)
+ vid |= FM10K_VLAN_CLEAR;
+
+ /* generate VLAN request */
+ fm10k_tlv_msg_init(msg, FM10K_VF_MSG_ID_MAC_VLAN);
+ fm10k_tlv_attr_put_mac_vlan(msg, FM10K_MAC_VLAN_MSG_MULTICAST,
+ mac, vid);
+
+ /* load onto outgoing mailbox */
+ return mbx->ops.enqueue_tx(hw, mbx, msg);
+}
+
+/**
+ * fm10k_update_int_moderator_vf - Request update of interrupt moderator list
+ * @hw: pointer to hardware structure
+ *
+ * This function will issue a request to the PF to rescan our MSI-X table
+ * and to update the interrupt moderator linked list.
+ **/
+static void fm10k_update_int_moderator_vf(struct fm10k_hw *hw)
+{
+ struct fm10k_mbx_info *mbx = &hw->mbx;
+ u32 msg[1];
+
+ /* generate MSI-X request */
+ fm10k_tlv_msg_init(msg, FM10K_VF_MSG_ID_MSIX);
+
+ /* load onto outgoing mailbox */
+ mbx->ops.enqueue_tx(hw, mbx, msg);
+}
+
+/* This structure defines the attibutes to be parsed below */
+const struct fm10k_tlv_attr fm10k_lport_state_msg_attr[] = {
+ FM10K_TLV_ATTR_BOOL(FM10K_LPORT_STATE_MSG_DISABLE),
+ FM10K_TLV_ATTR_U8(FM10K_LPORT_STATE_MSG_XCAST_MODE),
+ FM10K_TLV_ATTR_BOOL(FM10K_LPORT_STATE_MSG_READY),
+ FM10K_TLV_ATTR_LAST
+};
+
+/**
+ * fm10k_msg_lport_state_vf - Message handler for lport_state message from PF
+ * @hw: Pointer to hardware structure
+ * @results: pointer array containing parsed data
+ * @mbx: Pointer to mailbox information structure
+ *
+ * This handler is meant to capture the indication from the PF that we
+ * are ready to bring up the interface.
+ **/
+s32 fm10k_msg_lport_state_vf(struct fm10k_hw *hw, u32 **results,
+ struct fm10k_mbx_info *mbx)
+{
+ hw->mac.dglort_map = !results[FM10K_LPORT_STATE_MSG_READY] ?
+ FM10K_DGLORTMAP_NONE : FM10K_DGLORTMAP_ZERO;
+
+ return 0;
+}
+
+/**
+ * fm10k_update_lport_state_vf - Update device state in lower device
+ * @hw: pointer to the HW structure
+ * @glort: unused
+ * @count: number of logical ports to enable - unused (always 1)
+ * @enable: boolean value indicating if this is an enable or disable request
+ *
+ * Notify the lower device of a state change. If the lower device is
+ * enabled we can add filters, if it is disabled all filters for this
+ * logical port are flushed.
+ **/
+static s32 fm10k_update_lport_state_vf(struct fm10k_hw *hw, u16 glort,
+ u16 count, bool enable)
+{
+ struct fm10k_mbx_info *mbx = &hw->mbx;
+ u32 msg[2];
+
+ /* reset glort mask 0 as we have to wait to be enabled */
+ hw->mac.dglort_map = FM10K_DGLORTMAP_NONE;
+
+ /* generate port state request */
+ fm10k_tlv_msg_init(msg, FM10K_VF_MSG_ID_LPORT_STATE);
+ if (!enable)
+ fm10k_tlv_attr_put_bool(msg, FM10K_LPORT_STATE_MSG_DISABLE);
+
+ /* load onto outgoing mailbox */
+ return mbx->ops.enqueue_tx(hw, mbx, msg);
+}
+
+/**
+ * fm10k_update_xcast_mode_vf - Request update of multicast mode
+ * @hw: pointer to hardware structure
+ * @glort: unused
+ * @mode: integer value indicating mode being requested
+ *
+ * This function will attempt to request a higher mode for the port
+ * so that it can enable either multicast, multicast promiscuous, or
+ * promiscuous mode of operation.
+ **/
+static s32 fm10k_update_xcast_mode_vf(struct fm10k_hw *hw, u16 glort, u8 mode)
+{
+ struct fm10k_mbx_info *mbx = &hw->mbx;
+ u32 msg[3];
+
+ if (mode > FM10K_XCAST_MODE_NONE)
+ return FM10K_ERR_PARAM;
+ /* generate message requesting to change xcast mode */
+ fm10k_tlv_msg_init(msg, FM10K_VF_MSG_ID_LPORT_STATE);
+ fm10k_tlv_attr_put_u8(msg, FM10K_LPORT_STATE_MSG_XCAST_MODE, mode);
+
+ /* load onto outgoing mailbox */
+ return mbx->ops.enqueue_tx(hw, mbx, msg);
+}
+
+/**
+ * fm10k_update_hw_stats_vf - Updates hardware related statistics of VF
+ * @hw: pointer to hardware structure
+ * @stats: pointer to statistics structure
+ *
+ * This function collects and aggregates per queue hardware statistics.
+ **/
+static void fm10k_update_hw_stats_vf(struct fm10k_hw *hw,
+ struct fm10k_hw_stats *stats)
+{
+ fm10k_update_hw_stats_q(hw, stats->q, 0, hw->mac.max_queues);
+}
+
+/**
+ * fm10k_rebind_hw_stats_vf - Resets base for hardware statistics of VF
+ * @hw: pointer to hardware structure
+ * @stats: pointer to the stats structure to update
+ *
+ * This function resets the base for queue hardware statistics.
+ **/
+static void fm10k_rebind_hw_stats_vf(struct fm10k_hw *hw,
+ struct fm10k_hw_stats *stats)
+{
+ /* Unbind Queue Statistics */
+ fm10k_unbind_hw_stats_q(stats->q, 0, hw->mac.max_queues);
+
+ /* Reinitialize bases for all stats */
+ fm10k_update_hw_stats_vf(hw, stats);
+}
+
+/**
+ * fm10k_configure_dglort_map_vf - Configures GLORT entry and queues
+ * @hw: pointer to hardware structure
+ * @dglort: pointer to dglort configuration structure
+ *
+ * Reads the configuration structure contained in dglort_cfg and uses
+ * that information to then populate a DGLORTMAP/DEC entry and the queues
+ * to which it has been assigned.
+ **/
+static s32 fm10k_configure_dglort_map_vf(struct fm10k_hw *hw,
+ struct fm10k_dglort_cfg *dglort)
+{
+ /* verify the dglort pointer */
+ if (!dglort)
+ return FM10K_ERR_PARAM;
+
+ /* stub for now until we determine correct message for this */
+
+ return 0;
+}
+
+static const struct fm10k_msg_data fm10k_msg_data_vf[] = {
+ FM10K_TLV_MSG_TEST_HANDLER(fm10k_tlv_msg_test),
+ FM10K_VF_MSG_MAC_VLAN_HANDLER(fm10k_msg_mac_vlan_vf),
+ FM10K_VF_MSG_LPORT_STATE_HANDLER(fm10k_msg_lport_state_vf),
+ FM10K_TLV_MSG_ERROR_HANDLER(fm10k_tlv_msg_error),
+};
+
+static struct fm10k_mac_ops mac_ops_vf = {
+ .get_bus_info = &fm10k_get_bus_info_generic,
+ .reset_hw = &fm10k_reset_hw_vf,
+ .init_hw = &fm10k_init_hw_vf,
+ .start_hw = &fm10k_start_hw_generic,
+ .stop_hw = &fm10k_stop_hw_vf,
+ .is_slot_appropriate = &fm10k_is_slot_appropriate_vf,
+ .update_vlan = &fm10k_update_vlan_vf,
+ .read_mac_addr = &fm10k_read_mac_addr_vf,
+ .update_uc_addr = &fm10k_update_uc_addr_vf,
+ .update_mc_addr = &fm10k_update_mc_addr_vf,
+ .update_xcast_mode = &fm10k_update_xcast_mode_vf,
+ .update_int_moderator = &fm10k_update_int_moderator_vf,
+ .update_lport_state = &fm10k_update_lport_state_vf,
+ .update_hw_stats = &fm10k_update_hw_stats_vf,
+ .rebind_hw_stats = &fm10k_rebind_hw_stats_vf,
+ .configure_dglort_map = &fm10k_configure_dglort_map_vf,
+ .get_host_state = &fm10k_get_host_state_generic,
+};
+
+static s32 fm10k_get_invariants_vf(struct fm10k_hw *hw)
+{
+ fm10k_get_invariants_generic(hw);
+
+ return fm10k_pfvf_mbx_init(hw, &hw->mbx, fm10k_msg_data_vf, 0);
+}
+
+struct fm10k_info fm10k_vf_info = {
+ .mac = fm10k_mac_vf,
+ .get_invariants = &fm10k_get_invariants_vf,
+ .mac_ops = &mac_ops_vf,
+};
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_vf.h b/drivers/net/ethernet/intel/fm10k/fm10k_vf.h
new file mode 100644
index 0000000..8e96ee5
--- /dev/null
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_vf.h
@@ -0,0 +1,68 @@
+/* Intel Ethernet Switch Host Interface Driver
+ * Copyright(c) 2013 - 2014 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Contact Information:
+ * e1000-devel Mailing List <e1000-devel@...ts.sourceforge.net>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ */
+
+#ifndef _FM10K_VF_H_
+#define _FM10K_VF_H_
+
+#include "fm10k_type.h"
+#include "fm10k_common.h"
+
+enum fm10k_vf_tlv_msg_id {
+ FM10K_VF_MSG_ID_TEST = 0, /* msg ID reserved for testing */
+ FM10K_VF_MSG_ID_MSIX,
+ FM10K_VF_MSG_ID_MAC_VLAN,
+ FM10K_VF_MSG_ID_LPORT_STATE,
+ FM10K_VF_MSG_ID_MAX,
+};
+
+enum fm10k_tlv_mac_vlan_attr_id {
+ FM10K_MAC_VLAN_MSG_VLAN,
+ FM10K_MAC_VLAN_MSG_SET,
+ FM10K_MAC_VLAN_MSG_MAC,
+ FM10K_MAC_VLAN_MSG_DEFAULT_MAC,
+ FM10K_MAC_VLAN_MSG_MULTICAST,
+ FM10K_MAC_VLAN_MSG_ID_MAX
+};
+
+enum fm10k_tlv_lport_state_attr_id {
+ FM10K_LPORT_STATE_MSG_DISABLE,
+ FM10K_LPORT_STATE_MSG_XCAST_MODE,
+ FM10K_LPORT_STATE_MSG_READY,
+ FM10K_LPORT_STATE_MSG_MAX
+};
+
+#define FM10K_VF_MSG_MSIX_HANDLER(func) \
+ FM10K_MSG_HANDLER(FM10K_VF_MSG_ID_MSIX, NULL, func)
+
+s32 fm10k_msg_mac_vlan_vf(struct fm10k_hw *, u32 **, struct fm10k_mbx_info *);
+extern const struct fm10k_tlv_attr fm10k_mac_vlan_msg_attr[];
+#define FM10K_VF_MSG_MAC_VLAN_HANDLER(func) \
+ FM10K_MSG_HANDLER(FM10K_VF_MSG_ID_MAC_VLAN, \
+ fm10k_mac_vlan_msg_attr, func)
+
+s32 fm10k_msg_lport_state_vf(struct fm10k_hw *, u32 **,
+ struct fm10k_mbx_info *);
+extern const struct fm10k_tlv_attr fm10k_lport_state_msg_attr[];
+#define FM10K_VF_MSG_LPORT_STATE_HANDLER(func) \
+ FM10K_MSG_HANDLER(FM10K_VF_MSG_ID_LPORT_STATE, \
+ fm10k_lport_state_msg_attr, func)
+
+extern struct fm10k_info fm10k_vf_info;
+#endif /* _FM10K_VF_H */
--
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