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Diffstat (limited to 'drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.c')
-rw-r--r--drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.c220
1 files changed, 93 insertions, 127 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.c
index d4a64e665398..788b5af07c70 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.c
@@ -1,34 +1,9 @@
-/*******************************************************************************
-
- Intel 10 Gigabit PCI Express Linux driver
- Copyright(c) 1999 - 2013 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.
-
- You should have received a copy of the GNU General Public License along with
- this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
-
- The full GNU General Public License is included in this distribution in
- the file called "COPYING".
-
- Contact Information:
- e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
- Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
-
-*******************************************************************************/
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 1999 - 2024 Intel Corporation. */
#include <linux/pci.h>
#include <linux/delay.h>
-#include "ixgbe_type.h"
-#include "ixgbe_common.h"
+#include "ixgbe.h"
#include "ixgbe_mbx.h"
/**
@@ -40,19 +15,18 @@
*
* returns SUCCESS if it successfully read message from buffer
**/
-s32 ixgbe_read_mbx(struct ixgbe_hw *hw, u32 *msg, u16 size, u16 mbx_id)
+int ixgbe_read_mbx(struct ixgbe_hw *hw, u32 *msg, u16 size, u16 mbx_id)
{
struct ixgbe_mbx_info *mbx = &hw->mbx;
- s32 ret_val = IXGBE_ERR_MBX;
/* limit read to size of mailbox */
if (size > mbx->size)
size = mbx->size;
- if (mbx->ops.read)
- ret_val = mbx->ops.read(hw, msg, size, mbx_id);
+ if (!mbx->ops)
+ return -EIO;
- return ret_val;
+ return mbx->ops->read(hw, msg, size, mbx_id);
}
/**
@@ -64,18 +38,17 @@ s32 ixgbe_read_mbx(struct ixgbe_hw *hw, u32 *msg, u16 size, u16 mbx_id)
*
* returns SUCCESS if it successfully copied message into the buffer
**/
-s32 ixgbe_write_mbx(struct ixgbe_hw *hw, u32 *msg, u16 size, u16 mbx_id)
+int ixgbe_write_mbx(struct ixgbe_hw *hw, u32 *msg, u16 size, u16 mbx_id)
{
struct ixgbe_mbx_info *mbx = &hw->mbx;
- s32 ret_val = 0;
if (size > mbx->size)
- ret_val = IXGBE_ERR_MBX;
+ return -EINVAL;
- else if (mbx->ops.write)
- ret_val = mbx->ops.write(hw, msg, size, mbx_id);
+ if (!mbx->ops)
+ return -EIO;
- return ret_val;
+ return mbx->ops->write(hw, msg, size, mbx_id);
}
/**
@@ -85,15 +58,14 @@ s32 ixgbe_write_mbx(struct ixgbe_hw *hw, u32 *msg, u16 size, u16 mbx_id)
*
* returns SUCCESS if the Status bit was found or else ERR_MBX
**/
-s32 ixgbe_check_for_msg(struct ixgbe_hw *hw, u16 mbx_id)
+int ixgbe_check_for_msg(struct ixgbe_hw *hw, u16 mbx_id)
{
struct ixgbe_mbx_info *mbx = &hw->mbx;
- s32 ret_val = IXGBE_ERR_MBX;
- if (mbx->ops.check_for_msg)
- ret_val = mbx->ops.check_for_msg(hw, mbx_id);
+ if (!mbx->ops)
+ return -EIO;
- return ret_val;
+ return mbx->ops->check_for_msg(hw, mbx_id);
}
/**
@@ -103,15 +75,14 @@ s32 ixgbe_check_for_msg(struct ixgbe_hw *hw, u16 mbx_id)
*
* returns SUCCESS if the Status bit was found or else ERR_MBX
**/
-s32 ixgbe_check_for_ack(struct ixgbe_hw *hw, u16 mbx_id)
+int ixgbe_check_for_ack(struct ixgbe_hw *hw, u16 mbx_id)
{
struct ixgbe_mbx_info *mbx = &hw->mbx;
- s32 ret_val = IXGBE_ERR_MBX;
- if (mbx->ops.check_for_ack)
- ret_val = mbx->ops.check_for_ack(hw, mbx_id);
+ if (!mbx->ops)
+ return -EIO;
- return ret_val;
+ return mbx->ops->check_for_ack(hw, mbx_id);
}
/**
@@ -121,15 +92,14 @@ s32 ixgbe_check_for_ack(struct ixgbe_hw *hw, u16 mbx_id)
*
* returns SUCCESS if the Status bit was found or else ERR_MBX
**/
-s32 ixgbe_check_for_rst(struct ixgbe_hw *hw, u16 mbx_id)
+int ixgbe_check_for_rst(struct ixgbe_hw *hw, u16 mbx_id)
{
struct ixgbe_mbx_info *mbx = &hw->mbx;
- s32 ret_val = IXGBE_ERR_MBX;
- if (mbx->ops.check_for_rst)
- ret_val = mbx->ops.check_for_rst(hw, mbx_id);
+ if (!mbx->ops)
+ return -EIO;
- return ret_val;
+ return mbx->ops->check_for_rst(hw, mbx_id);
}
/**
@@ -139,23 +109,22 @@ s32 ixgbe_check_for_rst(struct ixgbe_hw *hw, u16 mbx_id)
*
* returns SUCCESS if it successfully received a message notification
**/
-static s32 ixgbe_poll_for_msg(struct ixgbe_hw *hw, u16 mbx_id)
+static int ixgbe_poll_for_msg(struct ixgbe_hw *hw, u16 mbx_id)
{
struct ixgbe_mbx_info *mbx = &hw->mbx;
int countdown = mbx->timeout;
- if (!countdown || !mbx->ops.check_for_msg)
- goto out;
+ if (!countdown || !mbx->ops)
+ return -EIO;
- while (countdown && mbx->ops.check_for_msg(hw, mbx_id)) {
+ while (mbx->ops->check_for_msg(hw, mbx_id)) {
countdown--;
if (!countdown)
- break;
+ return -EIO;
udelay(mbx->usec_delay);
}
-out:
- return countdown ? 0 : IXGBE_ERR_MBX;
+ return 0;
}
/**
@@ -165,23 +134,22 @@ out:
*
* returns SUCCESS if it successfully received a message acknowledgement
**/
-static s32 ixgbe_poll_for_ack(struct ixgbe_hw *hw, u16 mbx_id)
+static int ixgbe_poll_for_ack(struct ixgbe_hw *hw, u16 mbx_id)
{
struct ixgbe_mbx_info *mbx = &hw->mbx;
int countdown = mbx->timeout;
- if (!countdown || !mbx->ops.check_for_ack)
- goto out;
+ if (!countdown || !mbx->ops)
+ return -EIO;
- while (countdown && mbx->ops.check_for_ack(hw, mbx_id)) {
+ while (mbx->ops->check_for_ack(hw, mbx_id)) {
countdown--;
if (!countdown)
- break;
+ return -EIO;
udelay(mbx->usec_delay);
}
-out:
- return countdown ? 0 : IXGBE_ERR_MBX;
+ return 0;
}
/**
@@ -194,22 +162,21 @@ out:
* returns SUCCESS if it successfully received a message notification and
* copied it into the receive buffer.
**/
-static s32 ixgbe_read_posted_mbx(struct ixgbe_hw *hw, u32 *msg, u16 size,
+static int ixgbe_read_posted_mbx(struct ixgbe_hw *hw, u32 *msg, u16 size,
u16 mbx_id)
{
struct ixgbe_mbx_info *mbx = &hw->mbx;
- s32 ret_val = IXGBE_ERR_MBX;
+ int ret_val;
- if (!mbx->ops.read)
- goto out;
+ if (!mbx->ops)
+ return -EIO;
ret_val = ixgbe_poll_for_msg(hw, mbx_id);
+ if (ret_val)
+ return ret_val;
- /* if ack received read message, otherwise we timed out */
- if (!ret_val)
- ret_val = mbx->ops.read(hw, msg, size, mbx_id);
-out:
- return ret_val;
+ /* if ack received read message */
+ return mbx->ops->read(hw, msg, size, mbx_id);
}
/**
@@ -222,37 +189,35 @@ out:
* returns SUCCESS if it successfully copied message into the buffer and
* received an ack to that message within delay * timeout period
**/
-static s32 ixgbe_write_posted_mbx(struct ixgbe_hw *hw, u32 *msg, u16 size,
- u16 mbx_id)
+static int ixgbe_write_posted_mbx(struct ixgbe_hw *hw, u32 *msg, u16 size,
+ u16 mbx_id)
{
struct ixgbe_mbx_info *mbx = &hw->mbx;
- s32 ret_val = IXGBE_ERR_MBX;
+ int ret_val;
/* exit if either we can't write or there isn't a defined timeout */
- if (!mbx->ops.write || !mbx->timeout)
- goto out;
+ if (!mbx->ops || !mbx->timeout)
+ return -EIO;
/* send msg */
- ret_val = mbx->ops.write(hw, msg, size, mbx_id);
+ ret_val = mbx->ops->write(hw, msg, size, mbx_id);
+ if (ret_val)
+ return ret_val;
/* if msg sent wait until we receive an ack */
- if (!ret_val)
- ret_val = ixgbe_poll_for_ack(hw, mbx_id);
-out:
- return ret_val;
+ return ixgbe_poll_for_ack(hw, mbx_id);
}
-static s32 ixgbe_check_for_bit_pf(struct ixgbe_hw *hw, u32 mask, s32 index)
+static int ixgbe_check_for_bit_pf(struct ixgbe_hw *hw, u32 mask, s32 index)
{
u32 mbvficr = IXGBE_READ_REG(hw, IXGBE_MBVFICR(index));
- s32 ret_val = IXGBE_ERR_MBX;
if (mbvficr & mask) {
- ret_val = 0;
IXGBE_WRITE_REG(hw, IXGBE_MBVFICR(index), mask);
+ return 0;
}
- return ret_val;
+ return -EIO;
}
/**
@@ -262,19 +227,18 @@ static s32 ixgbe_check_for_bit_pf(struct ixgbe_hw *hw, u32 mask, s32 index)
*
* returns SUCCESS if the VF has set the Status bit or else ERR_MBX
**/
-static s32 ixgbe_check_for_msg_pf(struct ixgbe_hw *hw, u16 vf_number)
+static int ixgbe_check_for_msg_pf(struct ixgbe_hw *hw, u16 vf_number)
{
- s32 ret_val = IXGBE_ERR_MBX;
- s32 index = IXGBE_MBVFICR_INDEX(vf_number);
+ int index = IXGBE_MBVFICR_INDEX(vf_number);
u32 vf_bit = vf_number % 16;
if (!ixgbe_check_for_bit_pf(hw, IXGBE_MBVFICR_VFREQ_VF1 << vf_bit,
- index)) {
- ret_val = 0;
+ index)) {
hw->mbx.stats.reqs++;
+ return 0;
}
- return ret_val;
+ return -EIO;
}
/**
@@ -284,19 +248,18 @@ static s32 ixgbe_check_for_msg_pf(struct ixgbe_hw *hw, u16 vf_number)
*
* returns SUCCESS if the VF has set the Status bit or else ERR_MBX
**/
-static s32 ixgbe_check_for_ack_pf(struct ixgbe_hw *hw, u16 vf_number)
+static int ixgbe_check_for_ack_pf(struct ixgbe_hw *hw, u16 vf_number)
{
- s32 ret_val = IXGBE_ERR_MBX;
- s32 index = IXGBE_MBVFICR_INDEX(vf_number);
+ int index = IXGBE_MBVFICR_INDEX(vf_number);
u32 vf_bit = vf_number % 16;
if (!ixgbe_check_for_bit_pf(hw, IXGBE_MBVFICR_VFACK_VF1 << vf_bit,
- index)) {
- ret_val = 0;
+ index)) {
hw->mbx.stats.acks++;
+ return 0;
}
- return ret_val;
+ return -EIO;
}
/**
@@ -306,31 +269,34 @@ static s32 ixgbe_check_for_ack_pf(struct ixgbe_hw *hw, u16 vf_number)
*
* returns SUCCESS if the VF has set the Status bit or else ERR_MBX
**/
-static s32 ixgbe_check_for_rst_pf(struct ixgbe_hw *hw, u16 vf_number)
+static int ixgbe_check_for_rst_pf(struct ixgbe_hw *hw, u16 vf_number)
{
u32 reg_offset = (vf_number < 32) ? 0 : 1;
u32 vf_shift = vf_number % 32;
u32 vflre = 0;
- s32 ret_val = IXGBE_ERR_MBX;
switch (hw->mac.type) {
case ixgbe_mac_82599EB:
vflre = IXGBE_READ_REG(hw, IXGBE_VFLRE(reg_offset));
break;
case ixgbe_mac_X540:
+ case ixgbe_mac_X550:
+ case ixgbe_mac_X550EM_x:
+ case ixgbe_mac_x550em_a:
+ case ixgbe_mac_e610:
vflre = IXGBE_READ_REG(hw, IXGBE_VFLREC(reg_offset));
break;
default:
break;
}
- if (vflre & (1 << vf_shift)) {
- ret_val = 0;
- IXGBE_WRITE_REG(hw, IXGBE_VFLREC(reg_offset), (1 << vf_shift));
+ if (vflre & BIT(vf_shift)) {
+ IXGBE_WRITE_REG(hw, IXGBE_VFLREC(reg_offset), BIT(vf_shift));
hw->mbx.stats.rsts++;
+ return 0;
}
- return ret_val;
+ return -EIO;
}
/**
@@ -340,9 +306,8 @@ static s32 ixgbe_check_for_rst_pf(struct ixgbe_hw *hw, u16 vf_number)
*
* return SUCCESS if we obtained the mailbox lock
**/
-static s32 ixgbe_obtain_mbx_lock_pf(struct ixgbe_hw *hw, u16 vf_number)
+static int ixgbe_obtain_mbx_lock_pf(struct ixgbe_hw *hw, u16 vf_number)
{
- s32 ret_val = IXGBE_ERR_MBX;
u32 p2v_mailbox;
/* Take ownership of the buffer */
@@ -351,9 +316,9 @@ static s32 ixgbe_obtain_mbx_lock_pf(struct ixgbe_hw *hw, u16 vf_number)
/* reserve mailbox for vf use */
p2v_mailbox = IXGBE_READ_REG(hw, IXGBE_PFMAILBOX(vf_number));
if (p2v_mailbox & IXGBE_PFMAILBOX_PFU)
- ret_val = 0;
+ return 0;
- return ret_val;
+ return -EIO;
}
/**
@@ -365,16 +330,16 @@ static s32 ixgbe_obtain_mbx_lock_pf(struct ixgbe_hw *hw, u16 vf_number)
*
* returns SUCCESS if it successfully copied message into the buffer
**/
-static s32 ixgbe_write_mbx_pf(struct ixgbe_hw *hw, u32 *msg, u16 size,
- u16 vf_number)
+static int ixgbe_write_mbx_pf(struct ixgbe_hw *hw, u32 *msg, u16 size,
+ u16 vf_number)
{
- s32 ret_val;
+ int ret_val;
u16 i;
/* lock the mailbox to prevent pf/vf race condition */
ret_val = ixgbe_obtain_mbx_lock_pf(hw, vf_number);
if (ret_val)
- goto out_no_write;
+ return ret_val;
/* flush msg and acks as we are overwriting the message buffer */
ixgbe_check_for_msg_pf(hw, vf_number);
@@ -390,9 +355,7 @@ static s32 ixgbe_write_mbx_pf(struct ixgbe_hw *hw, u32 *msg, u16 size,
/* update stats */
hw->mbx.stats.msgs_tx++;
-out_no_write:
- return ret_val;
-
+ return 0;
}
/**
@@ -406,16 +369,16 @@ out_no_write:
* memory buffer. The presumption is that the caller knows that there was
* a message due to a VF request so no polling for message is needed.
**/
-static s32 ixgbe_read_mbx_pf(struct ixgbe_hw *hw, u32 *msg, u16 size,
- u16 vf_number)
+static int ixgbe_read_mbx_pf(struct ixgbe_hw *hw, u32 *msg, u16 size,
+ u16 vf_number)
{
- s32 ret_val;
+ int ret_val;
u16 i;
/* lock the mailbox to prevent pf/vf race condition */
ret_val = ixgbe_obtain_mbx_lock_pf(hw, vf_number);
if (ret_val)
- goto out_no_read;
+ return ret_val;
/* copy the message to the mailbox memory buffer */
for (i = 0; i < size; i++)
@@ -427,8 +390,7 @@ static s32 ixgbe_read_mbx_pf(struct ixgbe_hw *hw, u32 *msg, u16 size,
/* update stats */
hw->mbx.stats.msgs_rx++;
-out_no_read:
- return ret_val;
+ return 0;
}
#ifdef CONFIG_PCI_IOV
@@ -443,6 +405,10 @@ void ixgbe_init_mbx_params_pf(struct ixgbe_hw *hw)
struct ixgbe_mbx_info *mbx = &hw->mbx;
if (hw->mac.type != ixgbe_mac_82599EB &&
+ hw->mac.type != ixgbe_mac_X550 &&
+ hw->mac.type != ixgbe_mac_X550EM_x &&
+ hw->mac.type != ixgbe_mac_x550em_a &&
+ hw->mac.type != ixgbe_mac_e610 &&
hw->mac.type != ixgbe_mac_X540)
return;
@@ -459,7 +425,7 @@ void ixgbe_init_mbx_params_pf(struct ixgbe_hw *hw)
}
#endif /* CONFIG_PCI_IOV */
-struct ixgbe_mbx_operations mbx_ops_generic = {
+const struct ixgbe_mbx_operations mbx_ops_generic = {
.read = ixgbe_read_mbx_pf,
.write = ixgbe_write_mbx_pf,
.read_posted = ixgbe_read_posted_mbx,
generated by cgit (git 2.34.1) at 2025-12-25 16:22:00 +0000