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Date: Fri, 29 Mar 2013 11:46:33 -0400
From: Rajesh Borundia <rajesh.borundia@...gic.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, Dept_NX_Linux_NIC_Driver@...gic.com,
Manish Chopra <manish.chopra@...gic.com>,
Sucheta Chakraborty <sucheta.chakraborty@...gic.com>
Subject: [PATCH net-next 1/7] qlcnic: Support SR-IOV enable and disable
o Add QLCNIC_SRIOV to Kconfig.
o Provide PCI sysfs hooks to enable and disable SR-IOV.
o Allow enabling only when CONFIG_QLCNIC_SRIOV is defined.
o qlcnic_sriov_pf.c has all the PF related SR-IOV
functionality.
o qlcnic_sriov_common.c has VF functionality and SR-IOV
functionality which is common between VF and PF.
o qlcnic_sriov.h is a common header file for SR-IOV defines.
Signed-off-by: Manish Chopra <manish.chopra@...gic.com>
Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@...gic.com>
Signed-off-by: Rajesh Borundia <rajesh.borundia@...gic.com>
---
drivers/net/ethernet/qlogic/Kconfig | 10 +
drivers/net/ethernet/qlogic/qlcnic/Makefile | 4 +-
drivers/net/ethernet/qlogic/qlcnic/qlcnic.h | 20 +-
.../net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c | 4 +
.../net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h | 1 +
.../net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c | 16 +-
drivers/net/ethernet/qlogic/qlcnic/qlcnic_hdr.h | 3 +-
drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h | 1 +
drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c | 8 +-
drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h | 58 +++
.../ethernet/qlogic/qlcnic/qlcnic_sriov_common.c | 40 ++
.../net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c | 455 ++++++++++++++++++++
12 files changed, 613 insertions(+), 7 deletions(-)
create mode 100644 drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h
create mode 100644 drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
create mode 100644 drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
diff --git a/drivers/net/ethernet/qlogic/Kconfig b/drivers/net/ethernet/qlogic/Kconfig
index a8669ad..0e17972 100644
--- a/drivers/net/ethernet/qlogic/Kconfig
+++ b/drivers/net/ethernet/qlogic/Kconfig
@@ -35,6 +35,16 @@ config QLCNIC
This driver supports QLogic QLE8240 and QLE8242 Converged Ethernet
devices.
+config QLCNIC_SRIOV
+ bool "QLOGIC QLCNIC 83XX family SR-IOV Support"
+ depends on QLCNIC && PCI_IOV
+ default y
+ ---help---
+ This configuration parameter enables Single Root Input Output
+ Virtualization support for QLE83XX Converged Ethernet devices.
+ This allows for virtual function acceleration in virtualized
+ environments.
+
config QLGE
tristate "QLogic QLGE 10Gb Ethernet Driver Support"
depends on PCI
diff --git a/drivers/net/ethernet/qlogic/qlcnic/Makefile b/drivers/net/ethernet/qlogic/qlcnic/Makefile
index 7722a20..4b1fb3f 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/Makefile
+++ b/drivers/net/ethernet/qlogic/qlcnic/Makefile
@@ -8,4 +8,6 @@ qlcnic-y := qlcnic_hw.o qlcnic_main.o qlcnic_init.o \
qlcnic_ethtool.o qlcnic_ctx.o qlcnic_io.o \
qlcnic_sysfs.o qlcnic_minidump.o qlcnic_83xx_hw.o \
qlcnic_83xx_init.o qlcnic_83xx_vnic.o \
- qlcnic_minidump.o
+ qlcnic_minidump.o qlcnic_sriov_common.o
+
+qlcnic-$(CONFIG_QLCNIC_SRIOV) += qlcnic_sriov_pf.o
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index 72bbba0..2ecf845 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -449,6 +449,7 @@ struct qlcnic_hardware_context {
struct qlc_83xx_idc idc;
struct qlc_83xx_fw_info fw_info;
struct qlcnic_intrpt_config *intr_tbl;
+ struct qlcnic_sriov *sriov;
u32 *reg_tbl;
u32 *ext_reg_tbl;
u32 mbox_aen[QLC_83XX_MBX_AEN_CNT];
@@ -914,7 +915,9 @@ struct qlcnic_ipaddr {
#define __QLCNIC_AER 5
#define __QLCNIC_DIAG_RES_ALLOC 6
#define __QLCNIC_LED_ENABLE 7
-#define __QLCNIC_ELB_INPROGRESS 8
+#define __QLCNIC_ELB_INPROGRESS 8
+#define __QLCNIC_SRIOV_ENABLE 10
+#define __QLCNIC_SRIOV_CAPABLE 11
#define QLCNIC_INTERRUPT_TEST 1
#define QLCNIC_LOOPBACK_TEST 2
@@ -1051,7 +1054,11 @@ struct qlcnic_info_le {
u8 total_pf;
u8 total_rss_engines;
__le16 max_vports;
- u8 reserved2[64];
+ __le16 linkstate_reg_offset;
+ __le16 bit_offsets;
+ __le16 max_local_ipv6_addrs;
+ __le16 max_remote_ipv6_addrs;
+ u8 reserved2[56];
} __packed;
struct qlcnic_info {
@@ -1083,6 +1090,10 @@ struct qlcnic_info {
u8 total_pf;
u8 total_rss_engines;
u16 max_vports;
+ u16 linkstate_reg_offset;
+ u16 bit_offsets;
+ u16 max_local_ipv6_addrs;
+ u16 max_remote_ipv6_addrs;
};
struct qlcnic_pci_info_le {
@@ -1511,6 +1522,7 @@ int qlcnic_reset_npar_config(struct qlcnic_adapter *);
int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *);
void qlcnic_add_lb_filter(struct qlcnic_adapter *, struct sk_buff *, int,
__le16);
+int qlcnic_83xx_configure_opmode(struct qlcnic_adapter *adapter);
/*
* QLOGIC Board information
*/
@@ -1843,5 +1855,9 @@ static inline bool qlcnic_83xx_check(struct qlcnic_adapter *adapter)
return (device == PCI_DEVICE_ID_QLOGIC_QLE834X) ? true : false;
}
+static inline bool qlcnic_sriov_pf_check(struct qlcnic_adapter *adapter)
+{
+ return (adapter->ahw->op_mode == QLCNIC_SRIOV_PF_FUNC) ? true : false;
+}
#endif /* __QLCNIC_H_ */
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index 8de8ca5..0e1283d 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -209,6 +209,7 @@ static const struct qlcnic_mailbox_metadata qlcnic_83xx_mbx_tbl[] = {
{QLCNIC_CMD_SET_LED_CONFIG, 5, 1},
{QLCNIC_CMD_GET_LED_CONFIG, 1, 5},
{QLCNIC_CMD_ADD_RCV_RINGS, 130, 26},
+ {QLCNIC_CMD_CONFIG_VPORT, 4, 4},
};
static const u32 qlcnic_83xx_ext_reg_tbl[] = {
@@ -775,6 +776,9 @@ void qlcnic_83xx_check_vf(struct qlcnic_adapter *adapter,
ahw->fw_hal_version);
adapter->nic_ops = &qlcnic_vf_ops;
} else {
+ if (pci_find_ext_capability(adapter->pdev,
+ PCI_EXT_CAP_ID_SRIOV))
+ set_bit(__QLCNIC_SRIOV_CAPABLE, &adapter->state);
adapter->nic_ops = &qlcnic_83xx_ops;
}
}
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
index fbb3d1d..2a05c23 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
@@ -243,6 +243,7 @@ struct qlc_83xx_idc {
#define QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(val) (val & 0x20000)
#define QLC_83XX_VIRTUAL_NIC_MODE 0xFF
#define QLC_83XX_DEFAULT_MODE 0x0
+#define QLC_83XX_SRIOV_MODE 0x1
#define QLCNIC_BRDTYPE_83XX_10G 0x0083
#define QLC_83XX_FLASH_SPI_STATUS 0x2808E010
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
index ba5ac69..51dd81c 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
@@ -25,7 +25,6 @@
#define QLC_83XX_OPCODE_POLL_READ_LIST 0x0100
static int qlcnic_83xx_init_default_driver(struct qlcnic_adapter *adapter);
-static int qlcnic_83xx_configure_opmode(struct qlcnic_adapter *adapter);
static int qlcnic_83xx_check_heartbeat(struct qlcnic_adapter *p_dev);
static int qlcnic_83xx_restart_hw(struct qlcnic_adapter *adapter);
@@ -1918,6 +1917,9 @@ int qlcnic_83xx_config_default_opmode(struct qlcnic_adapter *adapter)
qlcnic_get_func_no(adapter);
op_mode = QLCRDX(ahw, QLC_83XX_DRV_OP_MODE);
+ if (test_bit(__QLCNIC_SRIOV_CAPABLE, &adapter->state))
+ op_mode = QLC_83XX_DEFAULT_OPMODE;
+
if (op_mode == QLC_83XX_DEFAULT_OPMODE) {
adapter->nic_ops->init_driver = qlcnic_83xx_init_default_driver;
ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
@@ -1947,6 +1949,16 @@ int qlcnic_83xx_get_nic_configuration(struct qlcnic_adapter *adapter)
ahw->max_mac_filters = nic_info.max_mac_filters;
ahw->max_mtu = nic_info.max_mtu;
+ /* VNIC mode is detected by BIT_23 in capabilities. This bit is also
+ * set in case device is SRIOV capable. VNIC and SRIOV are mutually
+ * exclusive. So in case of sriov capable device load driver in
+ * default mode
+ */
+ if (test_bit(__QLCNIC_SRIOV_CAPABLE, &adapter->state)) {
+ ahw->nic_mode = QLC_83XX_DEFAULT_MODE;
+ return ahw->nic_mode;
+ }
+
if (ahw->capabilities & BIT_23)
ahw->nic_mode = QLC_83XX_VIRTUAL_NIC_MODE;
else
@@ -1955,7 +1967,7 @@ int qlcnic_83xx_get_nic_configuration(struct qlcnic_adapter *adapter)
return ahw->nic_mode;
}
-static int qlcnic_83xx_configure_opmode(struct qlcnic_adapter *adapter)
+int qlcnic_83xx_configure_opmode(struct qlcnic_adapter *adapter)
{
int ret;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hdr.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hdr.h
index 44197ca..39dffde 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hdr.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hdr.h
@@ -714,7 +714,8 @@ enum {
QLCNIC_MGMT_FUNC = 0,
QLCNIC_PRIV_FUNC = 1,
QLCNIC_NON_PRIV_FUNC = 2,
- QLCNIC_UNKNOWN_FUNC_MODE = 3
+ QLCNIC_SRIOV_PF_FUNC = 3,
+ QLCNIC_UNKNOWN_FUNC_MODE = 4
};
enum {
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h
index 5b8749e..91db4ed 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h
@@ -83,6 +83,7 @@ enum qlcnic_regs {
#define QLCNIC_CMD_CONFIG_PORT 0x2e
#define QLCNIC_CMD_TEMP_SIZE 0x2f
#define QLCNIC_CMD_GET_TEMP_HDR 0x30
+#define QLCNIC_CMD_CONFIG_VPORT 0x32
#define QLCNIC_CMD_GET_MAC_STATS 0x37
#define QLCNIC_CMD_SET_DRV_VER 0x38
#define QLCNIC_CMD_CONFIGURE_RSS 0x41
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index d8b9e3b..80a4faa 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -9,6 +9,7 @@
#include <linux/interrupt.h>
#include "qlcnic.h"
+#include "qlcnic_sriov.h"
#include "qlcnic_hw.h"
#include <linux/swab.h>
@@ -2022,11 +2023,13 @@ static void qlcnic_remove(struct pci_dev *pdev)
return;
netdev = adapter->netdev;
+ qlcnic_sriov_pf_disable(adapter);
qlcnic_cancel_idc_work(adapter);
ahw = adapter->ahw;
unregister_netdev(netdev);
+ qlcnic_sriov_cleanup(adapter);
if (qlcnic_83xx_check(adapter)) {
qlcnic_83xx_free_mbx_intr(adapter);
@@ -3430,7 +3433,10 @@ static struct pci_driver qlcnic_driver = {
.resume = qlcnic_resume,
#endif
.shutdown = qlcnic_shutdown,
- .err_handler = &qlcnic_err_handler
+ .err_handler = &qlcnic_err_handler,
+#ifdef CONFIG_QLCNIC_SRIOV
+ .sriov_configure = qlcnic_pci_sriov_configure,
+#endif
};
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h
new file mode 100644
index 0000000..bb53307
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h
@@ -0,0 +1,58 @@
+/*
+ * QLogic qlcnic NIC Driver
+ * Copyright (c) 2009-2013 QLogic Corporation
+ *
+ * See LICENSE.qlcnic for copyright and licensing details.
+ */
+
+#ifndef _QLCNIC_83XX_SRIOV_H_
+#define _QLCNIC_83XX_SRIOV_H_
+
+#include "qlcnic.h"
+#include <linux/types.h>
+#include <linux/pci.h>
+
+struct qlcnic_resources {
+ u16 num_tx_mac_filters;
+ u16 num_rx_ucast_mac_filters;
+ u16 num_rx_mcast_mac_filters;
+
+ u16 num_txvlan_keys;
+
+ u16 num_rx_queues;
+ u16 num_tx_queues;
+
+ u16 num_rx_buf_rings;
+ u16 num_rx_status_rings;
+
+ u16 num_destip;
+ u32 num_lro_flows_supported;
+ u16 max_local_ipv6_addrs;
+ u16 max_remote_ipv6_addrs;
+};
+
+struct qlcnic_sriov {
+ u16 vp_handle;
+ u8 num_vfs;
+ struct qlcnic_resources ff_max;
+};
+
+int qlcnic_sriov_init(struct qlcnic_adapter *, int);
+void qlcnic_sriov_cleanup(struct qlcnic_adapter *);
+void __qlcnic_sriov_cleanup(struct qlcnic_adapter *);
+
+static inline bool qlcnic_sriov_enable_check(struct qlcnic_adapter *adapter)
+{
+ return test_bit(__QLCNIC_SRIOV_ENABLE, &adapter->state) ? true : false;
+}
+
+#ifdef CONFIG_QLCNIC_SRIOV
+void qlcnic_sriov_pf_disable(struct qlcnic_adapter *);
+void qlcnic_sriov_pf_cleanup(struct qlcnic_adapter *);
+int qlcnic_pci_sriov_configure(struct pci_dev *, int);
+#else
+static inline void qlcnic_sriov_pf_disable(struct qlcnic_adapter *adapter) {}
+static inline void qlcnic_sriov_pf_cleanup(struct qlcnic_adapter *adapter) {}
+#endif
+
+#endif
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
new file mode 100644
index 0000000..fb08ad0
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
@@ -0,0 +1,40 @@
+/*
+ * QLogic qlcnic NIC Driver
+ * Copyright (c) 2009-2013 QLogic Corporation
+ *
+ * See LICENSE.qlcnic for copyright and licensing details.
+ */
+
+#include "qlcnic_sriov.h"
+#include "qlcnic.h"
+#include <linux/types.h>
+
+int qlcnic_sriov_init(struct qlcnic_adapter *adapter, int num_vfs)
+{
+ struct qlcnic_sriov *sriov;
+
+ if (!qlcnic_sriov_enable_check(adapter))
+ return -EIO;
+
+ sriov = kzalloc(sizeof(struct qlcnic_sriov), GFP_KERNEL);
+ if (!sriov)
+ return -ENOMEM;
+
+ adapter->ahw->sriov = sriov;
+ sriov->num_vfs = num_vfs;
+ return 0;
+}
+
+void __qlcnic_sriov_cleanup(struct qlcnic_adapter *adapter)
+{
+ if (!qlcnic_sriov_enable_check(adapter))
+ return;
+
+ kfree(adapter->ahw->sriov);
+}
+
+void qlcnic_sriov_cleanup(struct qlcnic_adapter *adapter)
+{
+ if (qlcnic_sriov_pf_check(adapter))
+ qlcnic_sriov_pf_cleanup(adapter);
+}
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
new file mode 100644
index 0000000..aa5ba6e
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
@@ -0,0 +1,455 @@
+/*
+ * QLogic qlcnic NIC Driver
+ * Copyright (c) 2009-2013 QLogic Corporation
+ *
+ * See LICENSE.qlcnic for copyright and licensing details.
+ */
+
+#include "qlcnic_sriov.h"
+#include "qlcnic.h"
+#include <linux/types.h>
+
+#define QLCNIC_SRIOV_VF_MAX_MAC 1
+
+static int qlcnic_sriov_pf_get_vport_handle(struct qlcnic_adapter *, u8);
+
+static int qlcnic_sriov_pf_set_vport_info(struct qlcnic_adapter *adapter,
+ struct qlcnic_info *npar_info,
+ u16 vport_id)
+{
+ struct qlcnic_cmd_args cmd;
+ int err;
+
+ if (qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_SET_NIC_INFO))
+ return -ENOMEM;
+
+ cmd.req.arg[1] = (vport_id << 16) | 0x1;
+ cmd.req.arg[2] = npar_info->bit_offsets;
+ cmd.req.arg[2] |= npar_info->min_tx_bw << 16;
+ cmd.req.arg[3] = npar_info->max_tx_bw | (npar_info->max_tx_ques << 16);
+ cmd.req.arg[4] = npar_info->max_tx_mac_filters;
+ cmd.req.arg[4] |= npar_info->max_rx_mcast_mac_filters << 16;
+ cmd.req.arg[5] = npar_info->max_rx_ucast_mac_filters |
+ (npar_info->max_rx_ip_addr << 16);
+ cmd.req.arg[6] = npar_info->max_rx_lro_flow |
+ (npar_info->max_rx_status_rings << 16);
+ cmd.req.arg[7] = npar_info->max_rx_buf_rings |
+ (npar_info->max_rx_ques << 16);
+ cmd.req.arg[8] = npar_info->max_tx_vlan_keys;
+ cmd.req.arg[8] |= npar_info->max_local_ipv6_addrs << 16;
+ cmd.req.arg[9] = npar_info->max_remote_ipv6_addrs;
+
+ err = qlcnic_issue_cmd(adapter, &cmd);
+ if (err)
+ dev_err(&adapter->pdev->dev,
+ "Failed to set vport info, err=%d\n", err);
+
+ qlcnic_free_mbx_args(&cmd);
+ return err;
+}
+
+static int qlcnic_sriov_pf_cal_res_limit(struct qlcnic_adapter *adapter,
+ struct qlcnic_info *info, u16 func)
+{
+ struct qlcnic_sriov *sriov = adapter->ahw->sriov;
+ struct qlcnic_resources *res = &sriov->ff_max;
+ int ret = -EIO, vpid;
+ u32 temp, num_vf_macs, num_vfs, max;
+
+ vpid = qlcnic_sriov_pf_get_vport_handle(adapter, func);
+ if (vpid < 0)
+ return -EINVAL;
+
+ num_vfs = sriov->num_vfs;
+ max = num_vfs + 1;
+ info->bit_offsets = 0xffff;
+ info->min_tx_bw = 0;
+ info->max_tx_bw = MAX_BW;
+ info->max_tx_ques = res->num_tx_queues / max;
+ info->max_rx_mcast_mac_filters = res->num_rx_mcast_mac_filters;
+ num_vf_macs = QLCNIC_SRIOV_VF_MAX_MAC;
+
+ if (adapter->ahw->pci_func == func) {
+ temp = res->num_rx_mcast_mac_filters - (num_vfs * num_vf_macs);
+ info->max_rx_ucast_mac_filters = temp;
+ temp = res->num_tx_mac_filters - (num_vfs * num_vf_macs);
+ info->max_tx_mac_filters = temp;
+ } else {
+ info->max_rx_ucast_mac_filters = num_vf_macs;
+ info->max_tx_mac_filters = num_vf_macs;
+ }
+
+ info->max_rx_ip_addr = res->num_destip / max;
+ info->max_rx_status_rings = res->num_rx_status_rings / max;
+ info->max_rx_buf_rings = res->num_rx_buf_rings / max;
+ info->max_rx_ques = res->num_rx_queues / max;
+ info->max_rx_lro_flow = res->num_lro_flows_supported / max;
+ info->max_tx_vlan_keys = res->num_txvlan_keys;
+ info->max_local_ipv6_addrs = res->max_local_ipv6_addrs;
+ info->max_remote_ipv6_addrs = res->max_remote_ipv6_addrs;
+
+ ret = qlcnic_sriov_pf_set_vport_info(adapter, info, vpid);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static void qlcnic_sriov_pf_set_ff_max_res(struct qlcnic_adapter *adapter,
+ struct qlcnic_info *info)
+{
+ struct qlcnic_resources *ff_max = &adapter->ahw->sriov->ff_max;
+
+ ff_max->num_tx_mac_filters = info->max_tx_mac_filters;
+ ff_max->num_rx_ucast_mac_filters = info->max_rx_ucast_mac_filters;
+ ff_max->num_rx_mcast_mac_filters = info->max_rx_mcast_mac_filters;
+ ff_max->num_txvlan_keys = info->max_tx_vlan_keys;
+ ff_max->num_rx_queues = info->max_rx_ques;
+ ff_max->num_tx_queues = info->max_tx_ques;
+ ff_max->num_lro_flows_supported = info->max_rx_lro_flow;
+ ff_max->num_destip = info->max_rx_ip_addr;
+ ff_max->num_rx_buf_rings = info->max_rx_buf_rings;
+ ff_max->num_rx_status_rings = info->max_rx_status_rings;
+ ff_max->max_remote_ipv6_addrs = info->max_remote_ipv6_addrs;
+ ff_max->max_local_ipv6_addrs = info->max_local_ipv6_addrs;
+}
+
+static int qlcnic_sriov_get_pf_info(struct qlcnic_adapter *adapter,
+ struct qlcnic_info *npar_info)
+{
+ int err;
+ struct qlcnic_cmd_args cmd;
+
+ if (qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_NIC_INFO))
+ return -ENOMEM;
+
+ cmd.req.arg[1] = 0x2;
+ err = qlcnic_issue_cmd(adapter, &cmd);
+ if (err) {
+ dev_err(&adapter->pdev->dev,
+ "Failed to get PF info, err=%d\n", err);
+ goto out;
+ }
+
+ npar_info->total_pf = cmd.rsp.arg[2] & 0xff;
+ npar_info->total_rss_engines = (cmd.rsp.arg[2] >> 8) & 0xff;
+ npar_info->max_vports = MSW(cmd.rsp.arg[2]);
+ npar_info->max_tx_ques = LSW(cmd.rsp.arg[3]);
+ npar_info->max_tx_mac_filters = MSW(cmd.rsp.arg[3]);
+ npar_info->max_rx_mcast_mac_filters = LSW(cmd.rsp.arg[4]);
+ npar_info->max_rx_ucast_mac_filters = MSW(cmd.rsp.arg[4]);
+ npar_info->max_rx_ip_addr = LSW(cmd.rsp.arg[5]);
+ npar_info->max_rx_lro_flow = MSW(cmd.rsp.arg[5]);
+ npar_info->max_rx_status_rings = LSW(cmd.rsp.arg[6]);
+ npar_info->max_rx_buf_rings = MSW(cmd.rsp.arg[6]);
+ npar_info->max_rx_ques = LSW(cmd.rsp.arg[7]);
+ npar_info->max_tx_vlan_keys = MSW(cmd.rsp.arg[7]);
+ npar_info->max_local_ipv6_addrs = LSW(cmd.rsp.arg[8]);
+ npar_info->max_remote_ipv6_addrs = MSW(cmd.rsp.arg[8]);
+
+ dev_info(&adapter->pdev->dev,
+ "\n\ttotal_pf: %d,\n"
+ "\n\ttotal_rss_engines: %d max_vports: %d max_tx_ques %d,\n"
+ "\tmax_tx_mac_filters: %d max_rx_mcast_mac_filters: %d,\n"
+ "\tmax_rx_ucast_mac_filters: 0x%x, max_rx_ip_addr: %d,\n"
+ "\tmax_rx_lro_flow: %d max_rx_status_rings: %d,\n"
+ "\tmax_rx_buf_rings: %d, max_rx_ques: %d, max_tx_vlan_keys %d\n"
+ "\tmax_local_ipv6_addrs: %d, max_remote_ipv6_addrs: %d\n",
+ npar_info->total_pf, npar_info->total_rss_engines,
+ npar_info->max_vports, npar_info->max_tx_ques,
+ npar_info->max_tx_mac_filters,
+ npar_info->max_rx_mcast_mac_filters,
+ npar_info->max_rx_ucast_mac_filters, npar_info->max_rx_ip_addr,
+ npar_info->max_rx_lro_flow, npar_info->max_rx_status_rings,
+ npar_info->max_rx_buf_rings, npar_info->max_rx_ques,
+ npar_info->max_tx_vlan_keys, npar_info->max_local_ipv6_addrs,
+ npar_info->max_remote_ipv6_addrs);
+
+out:
+ qlcnic_free_mbx_args(&cmd);
+ return err;
+}
+
+static void qlcnic_sriov_pf_reset_vport_handle(struct qlcnic_adapter *adapter,
+ u8 func)
+{
+ struct qlcnic_sriov *sriov = adapter->ahw->sriov;
+
+ if (adapter->ahw->pci_func == func)
+ sriov->vp_handle = 0;
+}
+
+static void qlcnic_sriov_pf_set_vport_handle(struct qlcnic_adapter *adapter,
+ u16 vport_handle, u8 func)
+{
+ struct qlcnic_sriov *sriov = adapter->ahw->sriov;
+
+ if (adapter->ahw->pci_func == func)
+ sriov->vp_handle = vport_handle;
+}
+
+static int qlcnic_sriov_pf_get_vport_handle(struct qlcnic_adapter *adapter,
+ u8 func)
+{
+ struct qlcnic_sriov *sriov = adapter->ahw->sriov;
+
+ if (adapter->ahw->pci_func == func)
+ return sriov->vp_handle;
+
+ return -EINVAL;
+}
+
+static int qlcnic_sriov_pf_config_vport(struct qlcnic_adapter *adapter,
+ u8 flag, u16 func)
+{
+ struct qlcnic_cmd_args cmd;
+ int ret;
+ int vpid;
+
+ if (qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIG_VPORT))
+ return -ENOMEM;
+
+ if (flag) {
+ cmd.req.arg[3] = func << 8;
+ } else {
+ vpid = qlcnic_sriov_pf_get_vport_handle(adapter, func);
+ if (vpid < 0) {
+ ret = -EINVAL;
+ goto out;
+ }
+ cmd.req.arg[3] = ((vpid & 0xffff) << 8) | 1;
+ }
+
+ ret = qlcnic_issue_cmd(adapter, &cmd);
+ if (ret) {
+ dev_err(&adapter->pdev->dev,
+ "Failed %s vport, err %d for func 0x%x\n",
+ (flag ? "enable" : "disable"), ret, func);
+ goto out;
+ }
+
+ if (flag) {
+ vpid = cmd.rsp.arg[2] & 0xffff;
+ qlcnic_sriov_pf_set_vport_handle(adapter, vpid, func);
+ } else {
+ qlcnic_sriov_pf_reset_vport_handle(adapter, func);
+ }
+
+out:
+ qlcnic_free_mbx_args(&cmd);
+ return ret;
+}
+
+static int qlcnic_sriov_pf_cfg_eswitch(struct qlcnic_adapter *adapter,
+ u8 func, u8 enable)
+{
+ struct qlcnic_cmd_args cmd;
+ int err = -EIO;
+
+ if (qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_TOGGLE_ESWITCH))
+ return -ENOMEM;
+
+ cmd.req.arg[0] |= (3 << 29);
+ cmd.req.arg[1] = ((func & 0xf) << 2) | BIT_6 | BIT_1;
+ if (enable)
+ cmd.req.arg[1] |= BIT_0;
+
+ err = qlcnic_issue_cmd(adapter, &cmd);
+
+ if (err != QLCNIC_RCODE_SUCCESS) {
+ dev_err(&adapter->pdev->dev,
+ "Failed to enable sriov eswitch%d\n", err);
+ err = -EIO;
+ }
+
+ qlcnic_free_mbx_args(&cmd);
+ return err;
+}
+
+void qlcnic_sriov_pf_cleanup(struct qlcnic_adapter *adapter)
+{
+ u8 func = adapter->ahw->pci_func;
+
+ if (!qlcnic_sriov_enable_check(adapter))
+ return;
+
+ qlcnic_sriov_pf_config_vport(adapter, 0, func);
+ qlcnic_sriov_pf_cfg_eswitch(adapter, func, 0);
+ __qlcnic_sriov_cleanup(adapter);
+ adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
+ clear_bit(__QLCNIC_SRIOV_ENABLE, &adapter->state);
+}
+
+void qlcnic_sriov_pf_disable(struct qlcnic_adapter *adapter)
+{
+ if (!qlcnic_sriov_pf_check(adapter))
+ return;
+
+ if (!qlcnic_sriov_enable_check(adapter))
+ return;
+
+ pci_disable_sriov(adapter->pdev);
+ netdev_info(adapter->netdev,
+ "SR-IOV is disabled successfully on port %d\n",
+ adapter->portnum);
+}
+
+static int qlcnic_pci_sriov_disable(struct qlcnic_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+
+ if (netif_running(netdev))
+ __qlcnic_down(adapter, netdev);
+
+ qlcnic_sriov_pf_disable(adapter);
+
+ qlcnic_sriov_pf_cleanup(adapter);
+
+ /* After disabling SRIOV re-init the driver in default mode
+ configure opmode based on op_mode of function
+ */
+ if (qlcnic_83xx_configure_opmode(adapter))
+ return -EIO;
+
+ if (netif_running(netdev))
+ __qlcnic_up(adapter, netdev);
+
+ return 0;
+}
+
+static int qlcnic_sriov_pf_init(struct qlcnic_adapter *adapter)
+{
+ struct qlcnic_hardware_context *ahw = adapter->ahw;
+ struct qlcnic_info nic_info, pf_info, vp_info;
+ int err;
+ u8 func = ahw->pci_func;
+
+ if (!qlcnic_sriov_enable_check(adapter))
+ return 0;
+
+ err = qlcnic_sriov_pf_cfg_eswitch(adapter, func, 1);
+ if (err)
+ goto clear_sriov_enable;
+
+ err = qlcnic_sriov_pf_config_vport(adapter, 1, func);
+ if (err)
+ goto disable_eswitch;
+
+ err = qlcnic_sriov_get_pf_info(adapter, &pf_info);
+ if (err)
+ goto delete_vport;
+
+ qlcnic_sriov_pf_set_ff_max_res(adapter, &pf_info);
+
+ err = qlcnic_get_nic_info(adapter, &nic_info, func);
+ if (err)
+ goto delete_vport;
+
+ err = qlcnic_sriov_pf_cal_res_limit(adapter, &vp_info, func);
+ if (err)
+ goto delete_vport;
+
+ ahw->physical_port = (u8) nic_info.phys_port;
+ ahw->switch_mode = nic_info.switch_mode;
+ ahw->max_mtu = nic_info.max_mtu;
+ ahw->capabilities = nic_info.capabilities;
+ ahw->nic_mode = QLC_83XX_SRIOV_MODE;
+ return err;
+
+delete_vport:
+ qlcnic_sriov_pf_config_vport(adapter, 0, func);
+
+disable_eswitch:
+ qlcnic_sriov_pf_cfg_eswitch(adapter, func, 0);
+
+clear_sriov_enable:
+ __qlcnic_sriov_cleanup(adapter);
+ adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
+ clear_bit(__QLCNIC_SRIOV_ENABLE, &adapter->state);
+ return err;
+}
+
+static int qlcnic_sriov_pf_enable(struct qlcnic_adapter *adapter, int num_vfs)
+{
+ int err;
+
+ if (!qlcnic_sriov_enable_check(adapter))
+ return 0;
+
+ err = pci_enable_sriov(adapter->pdev, num_vfs);
+ if (err)
+ qlcnic_sriov_pf_cleanup(adapter);
+
+ return err;
+}
+
+static int __qlcnic_pci_sriov_enable(struct qlcnic_adapter *adapter,
+ int num_vfs)
+{
+ int err = 0;
+
+ set_bit(__QLCNIC_SRIOV_ENABLE, &adapter->state);
+ adapter->ahw->op_mode = QLCNIC_SRIOV_PF_FUNC;
+
+ if (qlcnic_sriov_init(adapter, num_vfs)) {
+ clear_bit(__QLCNIC_SRIOV_ENABLE, &adapter->state);
+ adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
+ return -EIO;
+ }
+
+ if (qlcnic_sriov_pf_init(adapter))
+ return -EIO;
+
+ err = qlcnic_sriov_pf_enable(adapter, num_vfs);
+ return err;
+}
+
+static int qlcnic_pci_sriov_enable(struct qlcnic_adapter *adapter, int num_vfs)
+{
+ struct net_device *netdev = adapter->netdev;
+ int err;
+
+ if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
+ netdev_err(netdev,
+ "SR-IOV cannot be enabled, when legacy interrupts are enabled\n");
+ return -EIO;
+ }
+
+ if (netif_running(netdev))
+ __qlcnic_down(adapter, netdev);
+
+ err = __qlcnic_pci_sriov_enable(adapter, num_vfs);
+ if (err) {
+ netdev_info(netdev, "Failed to enable SR-IOV on port %d\n",
+ adapter->portnum);
+
+ if (qlcnic_83xx_configure_opmode(adapter))
+ goto error;
+ } else {
+ netdev_info(adapter->netdev,
+ "SR-IOV is enabled successfully on port %d\n",
+ adapter->portnum);
+ }
+ if (netif_running(netdev))
+ __qlcnic_up(adapter, netdev);
+
+error:
+ return err;
+}
+
+int qlcnic_pci_sriov_configure(struct pci_dev *dev, int num_vfs)
+{
+ struct qlcnic_adapter *adapter = pci_get_drvdata(dev);
+ int err;
+
+ if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
+ return -EBUSY;
+
+ if (num_vfs == 0)
+ err = qlcnic_pci_sriov_disable(adapter);
+ else
+ err = qlcnic_pci_sriov_enable(adapter, num_vfs);
+
+ clear_bit(__QLCNIC_RESETTING, &adapter->state);
+ return err;
+}
--
1.6.3.3
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