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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next

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Jeff Kirsher says:

====================
This series contains updates to igb and ixgbevf.

v2: updated patch description in 04 patch (ixgbevf: scheduling while
    atomic in reset hw path)
 ...
Akeem G. Abodunrin (1):
  igb: Support to enable EEE on all eee_supported devices

Alexander Duyck (2):
  igb: Remove artificial restriction on RQDPC stat reading
  ixgbevf: Add support for VF API negotiation

John Fastabend (1):
  ixgbevf: scheduling while atomic in reset hw path
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2012-09-20 22:33:42 -04:00
commit b216a4d86f
9 changed files with 105 additions and 11 deletions
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17
drivers/net/ethernet/intel/igb/e1000_82575.c
View file

@ -2223,11 +2223,10 @@ static s32 igb_update_nvm_checksum_i350(struct e1000_hw *hw)
s32 igb_set_eee_i350(struct e1000_hw *hw)
{
s32 ret_val = 0;
u32 ipcnfg, eeer, ctrl_ext;
u32 ipcnfg, eeer;
ctrl_ext = rd32(E1000_CTRL_EXT);
if ((hw->mac.type != e1000_i350) ||
(ctrl_ext & E1000_CTRL_EXT_LINK_MODE_MASK))
if ((hw->mac.type < e1000_i350) ||
(hw->phy.media_type != e1000_media_type_copper))
goto out;
ipcnfg = rd32(E1000_IPCNFG);
eeer = rd32(E1000_EEER);
@ -2240,6 +2239,14 @@ s32 igb_set_eee_i350(struct e1000_hw *hw)
E1000_EEER_RX_LPI_EN |
E1000_EEER_LPI_FC);
/* keep the LPI clock running before EEE is enabled */
if (hw->mac.type == e1000_i210 || hw->mac.type == e1000_i211) {
u32 eee_su;
eee_su = rd32(E1000_EEE_SU);
eee_su &= ~E1000_EEE_SU_LPI_CLK_STP;
wr32(E1000_EEE_SU, eee_su);
}
} else {
ipcnfg &= ~(E1000_IPCNFG_EEE_1G_AN |
E1000_IPCNFG_EEE_100M_AN);
@ -2249,6 +2256,8 @@ s32 igb_set_eee_i350(struct e1000_hw *hw)
}
wr32(E1000_IPCNFG, ipcnfg);
wr32(E1000_EEER, eeer);
rd32(E1000_IPCNFG);
rd32(E1000_EEER);
out:
return ret_val;

3
drivers/net/ethernet/intel/igb/e1000_defines.h
View file

@ -857,8 +857,9 @@
#define E1000_IPCNFG_EEE_100M_AN 0x00000004 /* EEE Enable 100M AN */
#define E1000_EEER_TX_LPI_EN 0x00010000 /* EEE Tx LPI Enable */
#define E1000_EEER_RX_LPI_EN 0x00020000 /* EEE Rx LPI Enable */
#define E1000_EEER_FRC_AN 0x10000000 /* Enable EEE in loopback */
#define E1000_EEER_FRC_AN 0x10000000 /* Enable EEE in loopback */
#define E1000_EEER_LPI_FC 0x00040000 /* EEE Enable on FC */
#define E1000_EEE_SU_LPI_CLK_STP 0X00800000 /* EEE LPI Clock Stop */
/* SerDes Control */
#define E1000_GEN_CTL_READY 0x80000000

1
drivers/net/ethernet/intel/igb/e1000_regs.h
View file

@ -349,6 +349,7 @@
/* Energy Efficient Ethernet "EEE" register */
#define E1000_IPCNFG 0x0E38 /* Internal PHY Configuration */
#define E1000_EEER 0x0E30 /* Energy Efficient Ethernet */
#define E1000_EEE_SU 0X0E34 /* EEE Setup */
/* Thermal Sensor Register */
#define E1000_THSTAT 0x08110 /* Thermal Sensor Status */

8
drivers/net/ethernet/intel/igb/igb_main.c
View file

@ -4681,11 +4681,13 @@ void igb_update_stats(struct igb_adapter *adapter,
bytes = 0;
packets = 0;
for (i = 0; i < adapter->num_rx_queues; i++) {
u32 rqdpc_tmp = rd32(E1000_RQDPC(i)) & 0x0FFF;
u32 rqdpc = rd32(E1000_RQDPC(i));
struct igb_ring *ring = adapter->rx_ring[i];
ring->rx_stats.drops += rqdpc_tmp;
net_stats->rx_fifo_errors += rqdpc_tmp;
if (rqdpc) {
ring->rx_stats.drops += rqdpc;
net_stats->rx_fifo_errors += rqdpc;
}
do {
start = u64_stats_fetch_begin_bh(&ring->rx_syncp);

1
drivers/net/ethernet/intel/ixgbevf/defines.h
View file

@ -272,5 +272,6 @@ struct ixgbe_adv_tx_context_desc {
/* Error Codes */
#define IXGBE_ERR_INVALID_MAC_ADDR -1
#define IXGBE_ERR_RESET_FAILED -2
#define IXGBE_ERR_INVALID_ARGUMENT -3
#endif /* _IXGBEVF_DEFINES_H_ */

23
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
View file

@ -1334,6 +1334,25 @@ static void ixgbevf_init_last_counter_stats(struct ixgbevf_adapter *adapter)
adapter->stats.base_vfmprc = adapter->stats.last_vfmprc;
}
static void ixgbevf_negotiate_api(struct ixgbevf_adapter *adapter)
{
struct ixgbe_hw *hw = &adapter->hw;
int api[] = { ixgbe_mbox_api_10,
ixgbe_mbox_api_unknown };
int err = 0, idx = 0;
spin_lock(&adapter->mbx_lock);
while (api[idx] != ixgbe_mbox_api_unknown) {
err = ixgbevf_negotiate_api_version(hw, api[idx]);
if (!err)
break;
idx++;
}
spin_unlock(&adapter->mbx_lock);
}
static void ixgbevf_up_complete(struct ixgbevf_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
@ -1399,6 +1418,8 @@ void ixgbevf_up(struct ixgbevf_adapter *adapter)
{
struct ixgbe_hw *hw = &adapter->hw;
ixgbevf_negotiate_api(adapter);
ixgbevf_configure(adapter);
ixgbevf_up_complete(adapter);
@ -2388,6 +2409,8 @@ static int ixgbevf_open(struct net_device *netdev)
}
}
ixgbevf_negotiate_api(adapter);
/* allocate transmit descriptors */
err = ixgbevf_setup_all_tx_resources(adapter);
if (err)

21
drivers/net/ethernet/intel/ixgbevf/mbx.h
View file

@ -76,12 +76,29 @@
/* bits 23:16 are used for exra info for certain messages */
#define IXGBE_VT_MSGINFO_MASK (0xFF << IXGBE_VT_MSGINFO_SHIFT)
/* definitions to support mailbox API version negotiation */
/*
* each element denotes a version of the API; existing numbers may not
* change; any additions must go at the end
*/
enum ixgbe_pfvf_api_rev {
ixgbe_mbox_api_10, /* API version 1.0, linux/freebsd VF driver */
ixgbe_mbox_api_20, /* API version 2.0, solaris Phase1 VF driver */
/* This value should always be last */
ixgbe_mbox_api_unknown, /* indicates that API version is not known */
};
/* mailbox API, legacy requests */
#define IXGBE_VF_RESET 0x01 /* VF requests reset */
#define IXGBE_VF_SET_MAC_ADDR 0x02 /* VF requests PF to set MAC addr */
#define IXGBE_VF_SET_MULTICAST 0x03 /* VF requests PF to set MC addr */
#define IXGBE_VF_SET_VLAN 0x04 /* VF requests PF to set VLAN */
#define IXGBE_VF_SET_LPE 0x05 /* VF requests PF to set VMOLR.LPE */
#define IXGBE_VF_SET_MACVLAN 0x06 /* VF requests PF for unicast filter */
/* mailbox API, version 1.0 VF requests */
#define IXGBE_VF_SET_LPE 0x05 /* VF requests PF to set VMOLR.LPE */
#define IXGBE_VF_SET_MACVLAN 0x06 /* VF requests PF for unicast filter */
#define IXGBE_VF_API_NEGOTIATE 0x08 /* negotiate API version */
/* length of permanent address message returned from PF */
#define IXGBE_VF_PERMADDR_MSG_LEN 4

39
drivers/net/ethernet/intel/ixgbevf/vf.c
View file

@ -79,6 +79,9 @@ static s32 ixgbevf_reset_hw_vf(struct ixgbe_hw *hw)
/* Call adapter stop to disable tx/rx and clear interrupts */
hw->mac.ops.stop_adapter(hw);
/* reset the api version */
hw->api_version = ixgbe_mbox_api_10;
IXGBE_WRITE_REG(hw, IXGBE_VFCTRL, IXGBE_CTRL_RST);
IXGBE_WRITE_FLUSH(hw);
@ -97,7 +100,7 @@ static s32 ixgbevf_reset_hw_vf(struct ixgbe_hw *hw)
msgbuf[0] = IXGBE_VF_RESET;
mbx->ops.write_posted(hw, msgbuf, 1);
msleep(10);
mdelay(10);
/* set our "perm_addr" based on info provided by PF */
/* also set up the mc_filter_type which is piggy backed
@ -433,6 +436,40 @@ void ixgbevf_rlpml_set_vf(struct ixgbe_hw *hw, u16 max_size)
ixgbevf_write_msg_read_ack(hw, msgbuf, 2);
}
/**
* ixgbevf_negotiate_api_version - Negotiate supported API version
* @hw: pointer to the HW structure
* @api: integer containing requested API version
**/
int ixgbevf_negotiate_api_version(struct ixgbe_hw *hw, int api)
{
int err;
u32 msg[3];
/* Negotiate the mailbox API version */
msg[0] = IXGBE_VF_API_NEGOTIATE;
msg[1] = api;
msg[2] = 0;
err = hw->mbx.ops.write_posted(hw, msg, 3);
if (!err)
err = hw->mbx.ops.read_posted(hw, msg, 3);
if (!err) {
msg[0] &= ~IXGBE_VT_MSGTYPE_CTS;
/* Store value and return 0 on success */
if (msg[0] == (IXGBE_VF_API_NEGOTIATE | IXGBE_VT_MSGTYPE_ACK)) {
hw->api_version = api;
return 0;
}
err = IXGBE_ERR_INVALID_ARGUMENT;
}
return err;
}
static const struct ixgbe_mac_operations ixgbevf_mac_ops = {
.init_hw = ixgbevf_init_hw_vf,
.reset_hw = ixgbevf_reset_hw_vf,

3
drivers/net/ethernet/intel/ixgbevf/vf.h
View file

@ -137,6 +137,8 @@ struct ixgbe_hw {
u8 revision_id;
bool adapter_stopped;
int api_version;
};
struct ixgbevf_hw_stats {
@ -171,5 +173,6 @@ struct ixgbevf_info {
};
void ixgbevf_rlpml_set_vf(struct ixgbe_hw *hw, u16 max_size);
int ixgbevf_negotiate_api_version(struct ixgbe_hw *hw, int api);
#endif /* __IXGBE_VF_H__ */