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linux/drivers/net/vxge/vxge-config.c
Jon Mason 9f9b164581 vxge: spin-lock issue 
In vxge_hw_vpath_close, __vxge_hw_vp_terminate memsets the vpath which
clobbers the spin lock state, then the driver attempts to acquire the
spin lock.  Resolve this by not zeroing the lock part of vpath struct,
clean-up vpath locking in init, close, and fix locking hole in fw_api
call.

Issue found by Bob Picco <bpicco@redhat.com>

Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-12 11:22:34 -07:00

5141 lines
135 KiB
C
Raw Blame History

/******************************************************************************
* This software may be used and distributed according to the terms of
* the GNU General Public License (GPL), incorporated herein by reference.
* Drivers based on or derived from this code fall under the GPL and must
* retain the authorship, copyright and license notice. This file is not
* a complete program and may only be used when the entire operating
* system is licensed under the GPL.
* See the file COPYING in this distribution for more information.
*
* vxge-config.c: Driver for Exar Corp's X3100 Series 10GbE PCIe I/O
* Virtualized Server Adapter.
* Copyright(c) 2002-2010 Exar Corp.
******************************************************************************/
#include <linux/vmalloc.h>
#include <linux/etherdevice.h>
#include <linux/pci.h>
#include <linux/pci_hotplug.h>
#include <linux/slab.h>
#include "vxge-traffic.h"
#include "vxge-config.h"
#include "vxge-main.h"
#define VXGE_HW_VPATH_STATS_PIO_READ(offset) { \
status = __vxge_hw_vpath_stats_access(vpath, \
VXGE_HW_STATS_OP_READ, \
offset, \
&val64); \
if (status != VXGE_HW_OK) \
return status; \
}
static void
vxge_hw_vpath_set_zero_rx_frm_len(struct vxge_hw_vpath_reg __iomem *vp_reg)
{
u64 val64;
val64 = readq(&vp_reg->rxmac_vcfg0);
val64 &= ~VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(0x3fff);
writeq(val64, &vp_reg->rxmac_vcfg0);
val64 = readq(&vp_reg->rxmac_vcfg0);
}
/*
* vxge_hw_vpath_wait_receive_idle - Wait for Rx to become idle
*/
int vxge_hw_vpath_wait_receive_idle(struct __vxge_hw_device *hldev, u32 vp_id)
{
struct vxge_hw_vpath_reg __iomem *vp_reg;
struct __vxge_hw_virtualpath *vpath;
u64 val64, rxd_count, rxd_spat;
int count = 0, total_count = 0;
vpath = &hldev->virtual_paths[vp_id];
vp_reg = vpath->vp_reg;
vxge_hw_vpath_set_zero_rx_frm_len(vp_reg);
/* Check that the ring controller for this vpath has enough free RxDs
* to send frames to the host. This is done by reading the
* PRC_RXD_DOORBELL_VPn register and comparing the read value to the
* RXD_SPAT value for the vpath.
*/
val64 = readq(&vp_reg->prc_cfg6);
rxd_spat = VXGE_HW_PRC_CFG6_GET_RXD_SPAT(val64) + 1;
/* Use a factor of 2 when comparing rxd_count against rxd_spat for some
* leg room.
*/
rxd_spat *= 2;
do {
mdelay(1);
rxd_count = readq(&vp_reg->prc_rxd_doorbell);
/* Check that the ring controller for this vpath does
* not have any frame in its pipeline.
*/
val64 = readq(&vp_reg->frm_in_progress_cnt);
if ((rxd_count <= rxd_spat) || (val64 > 0))
count = 0;
else
count++;
total_count++;
} while ((count < VXGE_HW_MIN_SUCCESSIVE_IDLE_COUNT) &&
(total_count < VXGE_HW_MAX_POLLING_COUNT));
if (total_count >= VXGE_HW_MAX_POLLING_COUNT)
printk(KERN_ALERT "%s: Still Receiving traffic. Abort wait\n",
__func__);
return total_count;
}
/* vxge_hw_device_wait_receive_idle - This function waits until all frames
* stored in the frame buffer for each vpath assigned to the given
* function (hldev) have been sent to the host.
*/
void vxge_hw_device_wait_receive_idle(struct __vxge_hw_device *hldev)
{
int i, total_count = 0;
for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
if (!(hldev->vpaths_deployed & vxge_mBIT(i)))
continue;
total_count += vxge_hw_vpath_wait_receive_idle(hldev, i);
if (total_count >= VXGE_HW_MAX_POLLING_COUNT)
break;
}
}
/*
* __vxge_hw_device_register_poll
* Will poll certain register for specified amount of time.
* Will poll until masked bit is not cleared.
*/
static enum vxge_hw_status
__vxge_hw_device_register_poll(void __iomem *reg, u64 mask, u32 max_millis)
{
u64 val64;
u32 i = 0;
enum vxge_hw_status ret = VXGE_HW_FAIL;
udelay(10);
do {
val64 = readq(reg);
if (!(val64 & mask))
return VXGE_HW_OK;
udelay(100);
} while (++i <= 9);
i = 0;
do {
val64 = readq(reg);
if (!(val64 & mask))
return VXGE_HW_OK;
mdelay(1);
} while (++i <= max_millis);
return ret;
}
static inline enum vxge_hw_status
__vxge_hw_pio_mem_write64(u64 val64, void __iomem *addr,
u64 mask, u32 max_millis)
{
__vxge_hw_pio_mem_write32_lower((u32)vxge_bVALn(val64, 32, 32), addr);
wmb();
__vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn(val64, 0, 32), addr);
wmb();
return __vxge_hw_device_register_poll(addr, mask, max_millis);
}
static enum vxge_hw_status
vxge_hw_vpath_fw_api(struct __vxge_hw_virtualpath *vpath, u32 action,
u32 fw_memo, u32 offset, u64 *data0, u64 *data1,
u64 *steer_ctrl)
{
struct vxge_hw_vpath_reg __iomem *vp_reg = vpath->vp_reg;
enum vxge_hw_status status;
u64 val64;
u32 retry = 0, max_retry = 3;
spin_lock(&vpath->lock);
if (!vpath->vp_open) {
spin_unlock(&vpath->lock);
max_retry = 100;
}
writeq(*data0, &vp_reg->rts_access_steer_data0);
writeq(*data1, &vp_reg->rts_access_steer_data1);
wmb();
val64 = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION(action) |
VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL(fw_memo) |
VXGE_HW_RTS_ACCESS_STEER_CTRL_OFFSET(offset) |
VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE |
*steer_ctrl;
status = __vxge_hw_pio_mem_write64(val64,
&vp_reg->rts_access_steer_ctrl,
VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
VXGE_HW_DEF_DEVICE_POLL_MILLIS);
/* The __vxge_hw_device_register_poll can udelay for a significant
* amount of time, blocking other process from the CPU. If it delays
* for ~5secs, a NMI error can occur. A way around this is to give up
* the processor via msleep, but this is not allowed is under lock.
* So, only allow it to sleep for ~4secs if open. Otherwise, delay for
* 1sec and sleep for 10ms until the firmware operation has completed
* or timed-out.
*/
while ((status != VXGE_HW_OK) && retry++ < max_retry) {
if (!vpath->vp_open)
msleep(20);
status = __vxge_hw_device_register_poll(
&vp_reg->rts_access_steer_ctrl,
VXGE_HW_RTS_ACCESS_STEER_CTRL_STROBE,
VXGE_HW_DEF_DEVICE_POLL_MILLIS);
}
if (status != VXGE_HW_OK)
goto out;
val64 = readq(&vp_reg->rts_access_steer_ctrl);
if (val64 & VXGE_HW_RTS_ACCESS_STEER_CTRL_RMACJ_STATUS) {
*data0 = readq(&vp_reg->rts_access_steer_data0);
*data1 = readq(&vp_reg->rts_access_steer_data1);
*steer_ctrl = val64;
} else
status = VXGE_HW_FAIL;
out:
if (vpath->vp_open)
spin_unlock(&vpath->lock);
return status;
}
enum vxge_hw_status
vxge_hw_upgrade_read_version(struct __vxge_hw_device *hldev, u32 *major,
u32 *minor, u32 *build)
{
u64 data0 = 0, data1 = 0, steer_ctrl = 0;
struct __vxge_hw_virtualpath *vpath;
enum vxge_hw_status status;
vpath = &hldev->virtual_paths[hldev->first_vp_id];
status = vxge_hw_vpath_fw_api(vpath,
VXGE_HW_FW_UPGRADE_ACTION,
VXGE_HW_FW_UPGRADE_MEMO,
VXGE_HW_FW_UPGRADE_OFFSET_READ,
&data0, &data1, &steer_ctrl);
if (status != VXGE_HW_OK)
return status;
*major = VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MAJOR(data0);
*minor = VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MINOR(data0);
*build = VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_BUILD(data0);
return status;
}
enum vxge_hw_status vxge_hw_flash_fw(struct __vxge_hw_device *hldev)
{
u64 data0 = 0, data1 = 0, steer_ctrl = 0;
struct __vxge_hw_virtualpath *vpath;
enum vxge_hw_status status;
u32 ret;
vpath = &hldev->virtual_paths[hldev->first_vp_id];
status = vxge_hw_vpath_fw_api(vpath,
VXGE_HW_FW_UPGRADE_ACTION,
VXGE_HW_FW_UPGRADE_MEMO,
VXGE_HW_FW_UPGRADE_OFFSET_COMMIT,
&data0, &data1, &steer_ctrl);
if (status != VXGE_HW_OK) {
vxge_debug_init(VXGE_ERR, "%s: FW upgrade failed", __func__);
goto exit;
}
ret = VXGE_HW_RTS_ACCESS_STEER_CTRL_GET_ACTION(steer_ctrl) & 0x7F;
if (ret != 1) {
vxge_debug_init(VXGE_ERR, "%s: FW commit failed with error %d",
__func__, ret);
status = VXGE_HW_FAIL;
}
exit:
return status;
}
enum vxge_hw_status
vxge_update_fw_image(struct __vxge_hw_device *hldev, const u8 *fwdata, int size)
{
u64 data0 = 0, data1 = 0, steer_ctrl = 0;
struct __vxge_hw_virtualpath *vpath;
enum vxge_hw_status status;
int ret_code, sec_code;
vpath = &hldev->virtual_paths[hldev->first_vp_id];
/* send upgrade start command */
status = vxge_hw_vpath_fw_api(vpath,
VXGE_HW_FW_UPGRADE_ACTION,
VXGE_HW_FW_UPGRADE_MEMO,
VXGE_HW_FW_UPGRADE_OFFSET_START,
&data0, &data1, &steer_ctrl);
if (status != VXGE_HW_OK) {
vxge_debug_init(VXGE_ERR, " %s: Upgrade start cmd failed",
__func__);
return status;
}
/* Transfer fw image to adapter 16 bytes at a time */
for (; size > 0; size -= VXGE_HW_FW_UPGRADE_BLK_SIZE) {
steer_ctrl = 0;
/* The next 128bits of fwdata to be loaded onto the adapter */
data0 = *((u64 *)fwdata);
data1 = *((u64 *)fwdata + 1);
status = vxge_hw_vpath_fw_api(vpath,
VXGE_HW_FW_UPGRADE_ACTION,
VXGE_HW_FW_UPGRADE_MEMO,
VXGE_HW_FW_UPGRADE_OFFSET_SEND,
&data0, &data1, &steer_ctrl);
if (status != VXGE_HW_OK) {
vxge_debug_init(VXGE_ERR, "%s: Upgrade send failed",
__func__);
goto out;
}
ret_code = VXGE_HW_UPGRADE_GET_RET_ERR_CODE(data0);
switch (ret_code) {
case VXGE_HW_FW_UPGRADE_OK:
/* All OK, send next 16 bytes. */
break;
case VXGE_FW_UPGRADE_BYTES2SKIP:
/* skip bytes in the stream */
fwdata += (data0 >> 8) & 0xFFFFFFFF;
break;
case VXGE_HW_FW_UPGRADE_DONE:
goto out;
case VXGE_HW_FW_UPGRADE_ERR:
sec_code = VXGE_HW_UPGRADE_GET_SEC_ERR_CODE(data0);
switch (sec_code) {
case VXGE_HW_FW_UPGRADE_ERR_CORRUPT_DATA_1:
case VXGE_HW_FW_UPGRADE_ERR_CORRUPT_DATA_7:
printk(KERN_ERR
"corrupted data from .ncf file\n");
break;
case VXGE_HW_FW_UPGRADE_ERR_INV_NCF_FILE_3:
case VXGE_HW_FW_UPGRADE_ERR_INV_NCF_FILE_4:
case VXGE_HW_FW_UPGRADE_ERR_INV_NCF_FILE_5:
case VXGE_HW_FW_UPGRADE_ERR_INV_NCF_FILE_6:
case VXGE_HW_FW_UPGRADE_ERR_INV_NCF_FILE_8:
printk(KERN_ERR "invalid .ncf file\n");
break;
case VXGE_HW_FW_UPGRADE_ERR_BUFFER_OVERFLOW:
printk(KERN_ERR "buffer overflow\n");
break;
case VXGE_HW_FW_UPGRADE_ERR_FAILED_TO_FLASH:
printk(KERN_ERR "failed to flash the image\n");
break;
case VXGE_HW_FW_UPGRADE_ERR_GENERIC_ERROR_UNKNOWN:
printk(KERN_ERR
"generic error. Unknown error type\n");
break;
default:
printk(KERN_ERR "Unknown error of type %d\n",
sec_code);
break;
}
status = VXGE_HW_FAIL;
goto out;
default:
printk(KERN_ERR "Unknown FW error: %d\n", ret_code);
status = VXGE_HW_FAIL;
goto out;
}
/* point to next 16 bytes */
fwdata += VXGE_HW_FW_UPGRADE_BLK_SIZE;
}
out:
return status;
}
enum vxge_hw_status
vxge_hw_vpath_eprom_img_ver_get(struct __vxge_hw_device *hldev,
struct eprom_image *img)
{
u64 data0 = 0, data1 = 0, steer_ctrl = 0;
struct __vxge_hw_virtualpath *vpath;
enum vxge_hw_status status;
int i;
vpath = &hldev->virtual_paths[hldev->first_vp_id];
for (i = 0; i < VXGE_HW_MAX_ROM_IMAGES; i++) {
data0 = VXGE_HW_RTS_ACCESS_STEER_ROM_IMAGE_INDEX(i);
data1 = steer_ctrl = 0;
status = vxge_hw_vpath_fw_api(vpath,
VXGE_HW_FW_API_GET_EPROM_REV,
VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO,
0, &data0, &data1, &steer_ctrl);
if (status != VXGE_HW_OK)
break;
img[i].is_valid = VXGE_HW_GET_EPROM_IMAGE_VALID(data0);
img[i].index = VXGE_HW_GET_EPROM_IMAGE_INDEX(data0);
img[i].type = VXGE_HW_GET_EPROM_IMAGE_TYPE(data0);
img[i].version = VXGE_HW_GET_EPROM_IMAGE_REV(data0);
}
return status;
}
/*
* __vxge_hw_channel_free - Free memory allocated for channel
* This function deallocates memory from the channel and various arrays
* in the channel
*/
static void __vxge_hw_channel_free(struct __vxge_hw_channel *channel)
{
kfree(channel->work_arr);
kfree(channel->free_arr);
kfree(channel->reserve_arr);
kfree(channel->orig_arr);
kfree(channel);
}
/*
* __vxge_hw_channel_initialize - Initialize a channel
* This function initializes a channel by properly setting the
* various references
*/
static enum vxge_hw_status
__vxge_hw_channel_initialize(struct __vxge_hw_channel *channel)
{
u32 i;
struct __vxge_hw_virtualpath *vpath;
vpath = channel->vph->vpath;
if ((channel->reserve_arr != NULL) && (channel->orig_arr != NULL)) {
for (i = 0; i < channel->length; i++)
channel->orig_arr[i] = channel->reserve_arr[i];
}
switch (channel->type) {
case VXGE_HW_CHANNEL_TYPE_FIFO:
vpath->fifoh = (struct __vxge_hw_fifo *)channel;
channel->stats = &((struct __vxge_hw_fifo *)
channel)->stats->common_stats;
break;
case VXGE_HW_CHANNEL_TYPE_RING:
vpath->ringh = (struct __vxge_hw_ring *)channel;
channel->stats = &((struct __vxge_hw_ring *)
channel)->stats->common_stats;
break;
default:
break;
}
return VXGE_HW_OK;
}
/*
* __vxge_hw_channel_reset - Resets a channel
* This function resets a channel by properly setting the various references
*/
static enum vxge_hw_status
__vxge_hw_channel_reset(struct __vxge_hw_channel *channel)
{
u32 i;
for (i = 0; i < channel->length; i++) {
if (channel->reserve_arr != NULL)
channel->reserve_arr[i] = channel->orig_arr[i];
if (channel->free_arr != NULL)
channel->free_arr[i] = NULL;
if (channel->work_arr != NULL)
channel->work_arr[i] = NULL;
}
channel->free_ptr = channel->length;
channel->reserve_ptr = channel->length;
channel->reserve_top = 0;
channel->post_index = 0;
channel->compl_index = 0;
return VXGE_HW_OK;
}
/*
* __vxge_hw_device_pci_e_init
* Initialize certain PCI/PCI-X configuration registers
* with recommended values. Save config space for future hw resets.
*/
static void __vxge_hw_device_pci_e_init(struct __vxge_hw_device *hldev)
{
u16 cmd = 0;
/* Set the PErr Repconse bit and SERR in PCI command register. */
pci_read_config_word(hldev->pdev, PCI_COMMAND, &cmd);
cmd |= 0x140;
pci_write_config_word(hldev->pdev, PCI_COMMAND, cmd);
pci_save_state(hldev->pdev);
}
/* __vxge_hw_device_vpath_reset_in_prog_check - Check if vpath reset
* in progress
* This routine checks the vpath reset in progress register is turned zero
*/
static enum vxge_hw_status
__vxge_hw_device_vpath_reset_in_prog_check(u64 __iomem *vpath_rst_in_prog)
{
enum vxge_hw_status status;
status = __vxge_hw_device_register_poll(vpath_rst_in_prog,
VXGE_HW_VPATH_RST_IN_PROG_VPATH_RST_IN_PROG(0x1ffff),
VXGE_HW_DEF_DEVICE_POLL_MILLIS);
return status;
}
/*
* _hw_legacy_swapper_set - Set the swapper bits for the legacy secion.
* Set the swapper bits appropriately for the lagacy section.
*/
static enum vxge_hw_status
__vxge_hw_legacy_swapper_set(struct vxge_hw_legacy_reg __iomem *legacy_reg)
{
u64 val64;
enum vxge_hw_status status = VXGE_HW_OK;
val64 = readq(&legacy_reg->toc_swapper_fb);
wmb();
switch (val64) {
case VXGE_HW_SWAPPER_INITIAL_VALUE:
return status;
case VXGE_HW_SWAPPER_BYTE_SWAPPED_BIT_FLIPPED:
writeq(VXGE_HW_SWAPPER_READ_BYTE_SWAP_ENABLE,
&legacy_reg->pifm_rd_swap_en);
writeq(VXGE_HW_SWAPPER_READ_BIT_FLAP_ENABLE,
&legacy_reg->pifm_rd_flip_en);
writeq(VXGE_HW_SWAPPER_WRITE_BYTE_SWAP_ENABLE,
&legacy_reg->pifm_wr_swap_en);
writeq(VXGE_HW_SWAPPER_WRITE_BIT_FLAP_ENABLE,
&legacy_reg->pifm_wr_flip_en);
break;
case VXGE_HW_SWAPPER_BYTE_SWAPPED:
writeq(VXGE_HW_SWAPPER_READ_BYTE_SWAP_ENABLE,
&legacy_reg->pifm_rd_swap_en);
writeq(VXGE_HW_SWAPPER_WRITE_BYTE_SWAP_ENABLE,
&legacy_reg->pifm_wr_swap_en);
break;
case VXGE_HW_SWAPPER_BIT_FLIPPED:
writeq(VXGE_HW_SWAPPER_READ_BIT_FLAP_ENABLE,
&legacy_reg->pifm_rd_flip_en);
writeq(VXGE_HW_SWAPPER_WRITE_BIT_FLAP_ENABLE,
&legacy_reg->pifm_wr_flip_en);
break;
}
wmb();
val64 = readq(&legacy_reg->toc_swapper_fb);
if (val64 != VXGE_HW_SWAPPER_INITIAL_VALUE)
status = VXGE_HW_ERR_SWAPPER_CTRL;
return status;
}
/*
* __vxge_hw_device_toc_get
* This routine sets the swapper and reads the toc pointer and returns the
* memory mapped address of the toc
*/
static struct vxge_hw_toc_reg __iomem *
__vxge_hw_device_toc_get(void __iomem *bar0)
{
u64 val64;
struct vxge_hw_toc_reg __iomem *toc = NULL;
enum vxge_hw_status status;
struct vxge_hw_legacy_reg __iomem *legacy_reg =
(struct vxge_hw_legacy_reg __iomem *)bar0;
status = __vxge_hw_legacy_swapper_set(legacy_reg);
if (status != VXGE_HW_OK)
goto exit;
val64 = readq(&legacy_reg->toc_first_pointer);
toc = (struct vxge_hw_toc_reg __iomem *)(bar0+val64);
exit:
return toc;
}
/*
* __vxge_hw_device_reg_addr_get
* This routine sets the swapper and reads the toc pointer and initializes the
* register location pointers in the device object. It waits until the ric is
* completed initializing registers.
*/
static enum vxge_hw_status
__vxge_hw_device_reg_addr_get(struct __vxge_hw_device *hldev)
{
u64 val64;
u32 i;
enum vxge_hw_status status = VXGE_HW_OK;
hldev->legacy_reg = (struct vxge_hw_legacy_reg __iomem *)hldev->bar0;
hldev->toc_reg = __vxge_hw_device_toc_get(hldev->bar0);
if (hldev->toc_reg == NULL) {
status = VXGE_HW_FAIL;
goto exit;
}
val64 = readq(&hldev->toc_reg->toc_common_pointer);
hldev->common_reg =
(struct vxge_hw_common_reg __iomem *)(hldev->bar0 + val64);
val64 = readq(&hldev->toc_reg->toc_mrpcim_pointer);
hldev->mrpcim_reg =
(struct vxge_hw_mrpcim_reg __iomem *)(hldev->bar0 + val64);
for (i = 0; i < VXGE_HW_TITAN_SRPCIM_REG_SPACES; i++) {
val64 = readq(&hldev->toc_reg->toc_srpcim_pointer[i]);
hldev->srpcim_reg[i] =
(struct vxge_hw_srpcim_reg __iomem *)
(hldev->bar0 + val64);
}
for (i = 0; i < VXGE_HW_TITAN_VPMGMT_REG_SPACES; i++) {
val64 = readq(&hldev->toc_reg->toc_vpmgmt_pointer[i]);
hldev->vpmgmt_reg[i] =
(struct vxge_hw_vpmgmt_reg __iomem *)(hldev->bar0 + val64);
}
for (i = 0; i < VXGE_HW_TITAN_VPATH_REG_SPACES; i++) {
val64 = readq(&hldev->toc_reg->toc_vpath_pointer[i]);
hldev->vpath_reg[i] =
(struct vxge_hw_vpath_reg __iomem *)
(hldev->bar0 + val64);
}
val64 = readq(&hldev->toc_reg->toc_kdfc);
switch (VXGE_HW_TOC_GET_KDFC_INITIAL_BIR(val64)) {
case 0:
hldev->kdfc = (u8 __iomem *)(hldev->bar0 +
VXGE_HW_TOC_GET_KDFC_INITIAL_OFFSET(val64));
break;
default:
break;
}
status = __vxge_hw_device_vpath_reset_in_prog_check(
(u64 __iomem *)&hldev->common_reg->vpath_rst_in_prog);
exit:
return status;
}
/*
* __vxge_hw_device_access_rights_get: Get Access Rights of the driver
* This routine returns the Access Rights of the driver
*/
static u32
__vxge_hw_device_access_rights_get(u32 host_type, u32 func_id)
{
u32 access_rights = VXGE_HW_DEVICE_ACCESS_RIGHT_VPATH;
switch (host_type) {
case VXGE_HW_NO_MR_NO_SR_NORMAL_FUNCTION:
if (func_id == 0) {
access_rights |= VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM |
VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM;
}
break;
case VXGE_HW_MR_NO_SR_VH0_BASE_FUNCTION:
access_rights |= VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM |
VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM;
break;
case VXGE_HW_NO_MR_SR_VH0_FUNCTION0:
access_rights |= VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM |
VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM;
break;
case VXGE_HW_NO_MR_SR_VH0_VIRTUAL_FUNCTION:
case VXGE_HW_SR_VH_VIRTUAL_FUNCTION:
case VXGE_HW_MR_SR_VH0_INVALID_CONFIG:
break;
case VXGE_HW_SR_VH_FUNCTION0:
case VXGE_HW_VH_NORMAL_FUNCTION:
access_rights |= VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM;
break;
}
return access_rights;
}
/*
* __vxge_hw_device_is_privilaged
* This routine checks if the device function is privilaged or not
*/
enum vxge_hw_status
__vxge_hw_device_is_privilaged(u32 host_type, u32 func_id)
{
if (__vxge_hw_device_access_rights_get(host_type,
func_id) &
VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM)
return VXGE_HW_OK;
else
return VXGE_HW_ERR_PRIVILAGED_OPEARATION;
}
/*
* __vxge_hw_vpath_func_id_get - Get the function id of the vpath.
* Returns the function number of the vpath.
*/
static u32
__vxge_hw_vpath_func_id_get(struct vxge_hw_vpmgmt_reg __iomem *vpmgmt_reg)
{
u64 val64;
val64 = readq(&vpmgmt_reg->vpath_to_func_map_cfg1);
return
(u32)VXGE_HW_VPATH_TO_FUNC_MAP_CFG1_GET_VPATH_TO_FUNC_MAP_CFG1(val64);
}
/*
* __vxge_hw_device_host_info_get
* This routine returns the host type assignments
*/
static void __vxge_hw_device_host_info_get(struct __vxge_hw_device *hldev)
{
u64 val64;
u32 i;
val64 = readq(&hldev->common_reg->host_type_assignments);
hldev->host_type =
(u32)VXGE_HW_HOST_TYPE_ASSIGNMENTS_GET_HOST_TYPE_ASSIGNMENTS(val64);
hldev->vpath_assignments = readq(&hldev->common_reg->vpath_assignments);
for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
if (!(hldev->vpath_assignments & vxge_mBIT(i)))
continue;
hldev->func_id =
__vxge_hw_vpath_func_id_get(hldev->vpmgmt_reg[i]);
hldev->access_rights = __vxge_hw_device_access_rights_get(
hldev->host_type, hldev->func_id);
hldev->virtual_paths[i].vp_open = VXGE_HW_VP_NOT_OPEN;
hldev->virtual_paths[i].vp_reg = hldev->vpath_reg[i];
hldev->first_vp_id = i;
break;
}
}
/*
* __vxge_hw_verify_pci_e_info - Validate the pci-e link parameters such as
* link width and signalling rate.
*/
static enum vxge_hw_status
__vxge_hw_verify_pci_e_info(struct __vxge_hw_device *hldev)
{
int exp_cap;
u16 lnk;
/* Get the negotiated link width and speed from PCI config space */
exp_cap = pci_find_capability(hldev->pdev, PCI_CAP_ID_EXP);
pci_read_config_word(hldev->pdev, exp_cap + PCI_EXP_LNKSTA, &lnk);
if ((lnk & PCI_EXP_LNKSTA_CLS) != 1)
return VXGE_HW_ERR_INVALID_PCI_INFO;
switch ((lnk & PCI_EXP_LNKSTA_NLW) >> 4) {
case PCIE_LNK_WIDTH_RESRV:
case PCIE_LNK_X1:
case PCIE_LNK_X2:
case PCIE_LNK_X4:
case PCIE_LNK_X8:
break;
default:
return VXGE_HW_ERR_INVALID_PCI_INFO;
}
return VXGE_HW_OK;
}
/*
* __vxge_hw_device_initialize
* Initialize Titan-V hardware.
*/
static enum vxge_hw_status
__vxge_hw_device_initialize(struct __vxge_hw_device *hldev)
{
enum vxge_hw_status status = VXGE_HW_OK;
if (VXGE_HW_OK == __vxge_hw_device_is_privilaged(hldev->host_type,
hldev->func_id)) {
/* Validate the pci-e link width and speed */
status = __vxge_hw_verify_pci_e_info(hldev);
if (status != VXGE_HW_OK)
goto exit;
}
exit:
return status;
}
/*
* __vxge_hw_vpath_fw_ver_get - Get the fw version
* Returns FW Version
*/
static enum vxge_hw_status
__vxge_hw_vpath_fw_ver_get(struct __vxge_hw_virtualpath *vpath,
struct vxge_hw_device_hw_info *hw_info)
{
struct vxge_hw_device_version *fw_version = &hw_info->fw_version;
struct vxge_hw_device_date *fw_date = &hw_info->fw_date;
struct vxge_hw_device_version *flash_version = &hw_info->flash_version;
struct vxge_hw_device_date *flash_date = &hw_info->flash_date;
u64 data0, data1 = 0, steer_ctrl = 0;
enum vxge_hw_status status;
status = vxge_hw_vpath_fw_api(vpath,
VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_ENTRY,
VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO,
0, &data0, &data1, &steer_ctrl);
if (status != VXGE_HW_OK)
goto exit;
fw_date->day =
(u32) VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_DAY(data0);
fw_date->month =
(u32) VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MONTH(data0);
fw_date->year =
(u32) VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_YEAR(data0);
snprintf(fw_date->date, VXGE_HW_FW_STRLEN, "%2.2d/%2.2d/%4.4d",
fw_date->month, fw_date->day, fw_date->year);
fw_version->major =
(u32) VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MAJOR(data0);
fw_version->minor =
(u32) VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_MINOR(data0);
fw_version->build =
(u32) VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_FW_VER_BUILD(data0);
snprintf(fw_version->version, VXGE_HW_FW_STRLEN, "%d.%d.%d",
fw_version->major, fw_version->minor, fw_version->build);
flash_date->day =
(u32) VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_DAY(data1);
flash_date->month =
(u32) VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_MONTH(data1);
flash_date->year =
(u32) VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_YEAR(data1);
snprintf(flash_date->date, VXGE_HW_FW_STRLEN, "%2.2d/%2.2d/%4.4d",
flash_date->month, flash_date->day, flash_date->year);
flash_version->major =
(u32) VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_MAJOR(data1);
flash_version->minor =
(u32) VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_MINOR(data1);
flash_version->build =
(u32) VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_FLASH_VER_BUILD(data1);
snprintf(flash_version->version, VXGE_HW_FW_STRLEN, "%d.%d.%d",
flash_version->major, flash_version->minor,
flash_version->build);
exit:
return status;
}
/*
* __vxge_hw_vpath_card_info_get - Get the serial numbers,
* part number and product description.
*/
static enum vxge_hw_status
__vxge_hw_vpath_card_info_get(struct __vxge_hw_virtualpath *vpath,
struct vxge_hw_device_hw_info *hw_info)
{
enum vxge_hw_status status;
u64 data0, data1 = 0, steer_ctrl = 0;
u8 *serial_number = hw_info->serial_number;
u8 *part_number = hw_info->part_number;
u8 *product_desc = hw_info->product_desc;
u32 i, j = 0;
data0 = VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_SERIAL_NUMBER;
status = vxge_hw_vpath_fw_api(vpath,
VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_MEMO_ENTRY,
VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO,
0, &data0, &data1, &steer_ctrl);
if (status != VXGE_HW_OK)
return status;
((u64 *)serial_number)[0] = be64_to_cpu(data0);
((u64 *)serial_number)[1] = be64_to_cpu(data1);
data0 = VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_PART_NUMBER;
data1 = steer_ctrl = 0;
status = vxge_hw_vpath_fw_api(vpath,
VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_MEMO_ENTRY,
VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO,
0, &data0, &data1, &steer_ctrl);
if (status != VXGE_HW_OK)
return status;
((u64 *)part_number)[0] = be64_to_cpu(data0);
((u64 *)part_number)[1] = be64_to_cpu(data1);
for (i = VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_DESC_0;
i <= VXGE_HW_RTS_ACCESS_STEER_DATA0_MEMO_ITEM_DESC_3; i++) {
data0 = i;
data1 = steer_ctrl = 0;
status = vxge_hw_vpath_fw_api(vpath,
VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_MEMO_ENTRY,
VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO,
0, &data0, &data1, &steer_ctrl);
if (status != VXGE_HW_OK)
return status;
((u64 *)product_desc)[j++] = be64_to_cpu(data0);
((u64 *)product_desc)[j++] = be64_to_cpu(data1);
}
return status;
}
/*
* __vxge_hw_vpath_pci_func_mode_get - Get the pci mode
* Returns pci function mode
*/
static enum vxge_hw_status
__vxge_hw_vpath_pci_func_mode_get(struct __vxge_hw_virtualpath *vpath,
struct vxge_hw_device_hw_info *hw_info)
{
u64 data0, data1 = 0, steer_ctrl = 0;
enum vxge_hw_status status;
data0 = 0;
status = vxge_hw_vpath_fw_api(vpath,
VXGE_HW_FW_API_GET_FUNC_MODE,
VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO,
0, &data0, &data1, &steer_ctrl);
if (status != VXGE_HW_OK)
return status;
hw_info->function_mode = VXGE_HW_GET_FUNC_MODE_VAL(data0);
return status;
}
/*
* __vxge_hw_vpath_addr_get - Get the hw address entry for this vpath
* from MAC address table.
*/
static enum vxge_hw_status
__vxge_hw_vpath_addr_get(struct __vxge_hw_virtualpath *vpath,
u8 *macaddr, u8 *macaddr_mask)
{
u64 action = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_LIST_FIRST_ENTRY,
data0 = 0, data1 = 0, steer_ctrl = 0;
enum vxge_hw_status status;
int i;
do {
status = vxge_hw_vpath_fw_api(vpath, action,
VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA,
0, &data0, &data1, &steer_ctrl);
if (status != VXGE_HW_OK)
goto exit;
data0 = VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_DA_MAC_ADDR(data0);
data1 = VXGE_HW_RTS_ACCESS_STEER_DATA1_GET_DA_MAC_ADDR_MASK(
data1);
for (i = ETH_ALEN; i > 0; i--) {
macaddr[i - 1] = (u8) (data0 & 0xFF);
data0 >>= 8;
macaddr_mask[i - 1] = (u8) (data1 & 0xFF);
data1 >>= 8;
}
action = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_LIST_NEXT_ENTRY;
data0 = 0, data1 = 0, steer_ctrl = 0;
} while (!is_valid_ether_addr(macaddr));
exit:
return status;
}
/**
* vxge_hw_device_hw_info_get - Get the hw information
* Returns the vpath mask that has the bits set for each vpath allocated
* for the driver, FW version information, and the first mac address for
* each vpath
*/
enum vxge_hw_status __devinit
vxge_hw_device_hw_info_get(void __iomem *bar0,
struct vxge_hw_device_hw_info *hw_info)
{
u32 i;
u64 val64;
struct vxge_hw_toc_reg __iomem *toc;
struct vxge_hw_mrpcim_reg __iomem *mrpcim_reg;
struct vxge_hw_common_reg __iomem *common_reg;
struct vxge_hw_vpmgmt_reg __iomem *vpmgmt_reg;
enum vxge_hw_status status;
struct __vxge_hw_virtualpath vpath;
memset(hw_info, 0, sizeof(struct vxge_hw_device_hw_info));
toc = __vxge_hw_device_toc_get(bar0);
if (toc == NULL) {
status = VXGE_HW_ERR_CRITICAL;
goto exit;
}
val64 = readq(&toc->toc_common_pointer);
common_reg = (struct vxge_hw_common_reg __iomem *)(bar0 + val64);
status = __vxge_hw_device_vpath_reset_in_prog_check(
(u64 __iomem *)&common_reg->vpath_rst_in_prog);
if (status != VXGE_HW_OK)
goto exit;
hw_info->vpath_mask = readq(&common_reg->vpath_assignments);
val64 = readq(&common_reg->host_type_assignments);
hw_info->host_type =
(u32)VXGE_HW_HOST_TYPE_ASSIGNMENTS_GET_HOST_TYPE_ASSIGNMENTS(val64);
for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
if (!((hw_info->vpath_mask) & vxge_mBIT(i)))
continue;
val64 = readq(&toc->toc_vpmgmt_pointer[i]);
vpmgmt_reg = (struct vxge_hw_vpmgmt_reg __iomem *)
(bar0 + val64);
hw_info->func_id = __vxge_hw_vpath_func_id_get(vpmgmt_reg);
if (__vxge_hw_device_access_rights_get(hw_info->host_type,
hw_info->func_id) &
VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM) {
val64 = readq(&toc->toc_mrpcim_pointer);
mrpcim_reg = (struct vxge_hw_mrpcim_reg __iomem *)
(bar0 + val64);
writeq(0, &mrpcim_reg->xgmac_gen_fw_memo_mask);
wmb();
}
val64 = readq(&toc->toc_vpath_pointer[i]);
spin_lock_init(&vpath.lock);
vpath.vp_reg = (struct vxge_hw_vpath_reg __iomem *)
(bar0 + val64);
vpath.vp_open = VXGE_HW_VP_NOT_OPEN;
status = __vxge_hw_vpath_pci_func_mode_get(&vpath, hw_info);
if (status != VXGE_HW_OK)
goto exit;
status = __vxge_hw_vpath_fw_ver_get(&vpath, hw_info);
if (status != VXGE_HW_OK)
goto exit;
status = __vxge_hw_vpath_card_info_get(&vpath, hw_info);
if (status != VXGE_HW_OK)
goto exit;
break;
}
for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
if (!((hw_info->vpath_mask) & vxge_mBIT(i)))
continue;
val64 = readq(&toc->toc_vpath_pointer[i]);
vpath.vp_reg = (struct vxge_hw_vpath_reg __iomem *)
(bar0 + val64);
vpath.vp_open = VXGE_HW_VP_NOT_OPEN;
status = __vxge_hw_vpath_addr_get(&vpath,
hw_info->mac_addrs[i],
hw_info->mac_addr_masks[i]);
if (status != VXGE_HW_OK)
goto exit;
}
exit:
return status;
}
/*
* __vxge_hw_blockpool_destroy - Deallocates the block pool
*/
static void __vxge_hw_blockpool_destroy(struct __vxge_hw_blockpool *blockpool)
{
struct __vxge_hw_device *hldev;
struct list_head *p, *n;
u16 ret;
if (blockpool == NULL) {
ret = 1;
goto exit;
}
hldev = blockpool->hldev;
list_for_each_safe(p, n, &blockpool->free_block_list) {
pci_unmap_single(hldev->pdev,
((struct __vxge_hw_blockpool_entry *)p)->dma_addr,
((struct __vxge_hw_blockpool_entry *)p)->length,
PCI_DMA_BIDIRECTIONAL);
vxge_os_dma_free(hldev->pdev,
((struct __vxge_hw_blockpool_entry *)p)->memblock,
&((struct __vxge_hw_blockpool_entry *)p)->acc_handle);
list_del(&((struct __vxge_hw_blockpool_entry *)p)->item);
kfree(p);
blockpool->pool_size--;
}
list_for_each_safe(p, n, &blockpool->free_entry_list) {
list_del(&((struct __vxge_hw_blockpool_entry *)p)->item);
kfree((void *)p);
}
ret = 0;
exit:
return;
}
/*
* __vxge_hw_blockpool_create - Create block pool
*/
static enum vxge_hw_status
__vxge_hw_blockpool_create(struct __vxge_hw_device *hldev,
struct __vxge_hw_blockpool *blockpool,
u32 pool_size,
u32 pool_max)
{
u32 i;
struct __vxge_hw_blockpool_entry *entry = NULL;
void *memblock;
dma_addr_t dma_addr;
struct pci_dev *dma_handle;
struct pci_dev *acc_handle;
enum vxge_hw_status status = VXGE_HW_OK;
if (blockpool == NULL) {
status = VXGE_HW_FAIL;
goto blockpool_create_exit;
}
blockpool->hldev = hldev;
blockpool->block_size = VXGE_HW_BLOCK_SIZE;
blockpool->pool_size = 0;
blockpool->pool_max = pool_max;
blockpool->req_out = 0;
INIT_LIST_HEAD(&blockpool->free_block_list);
INIT_LIST_HEAD(&blockpool->free_entry_list);
for (i = 0; i < pool_size + pool_max; i++) {
entry = kzalloc(sizeof(struct __vxge_hw_blockpool_entry),
GFP_KERNEL);
if (entry == NULL) {
__vxge_hw_blockpool_destroy(blockpool);
status = VXGE_HW_ERR_OUT_OF_MEMORY;
goto blockpool_create_exit;
}
list_add(&entry->item, &blockpool->free_entry_list);
}
for (i = 0; i < pool_size; i++) {
memblock = vxge_os_dma_malloc(
hldev->pdev,
VXGE_HW_BLOCK_SIZE,
&dma_handle,
&acc_handle);
if (memblock == NULL) {
__vxge_hw_blockpool_destroy(blockpool);
status = VXGE_HW_ERR_OUT_OF_MEMORY;
goto blockpool_create_exit;
}
dma_addr = pci_map_single(hldev->pdev, memblock,
VXGE_HW_BLOCK_SIZE, PCI_DMA_BIDIRECTIONAL);
if (unlikely(pci_dma_mapping_error(hldev->pdev,
dma_addr))) {
vxge_os_dma_free(hldev->pdev, memblock, &acc_handle);
__vxge_hw_blockpool_destroy(blockpool);
status = VXGE_HW_ERR_OUT_OF_MEMORY;
goto blockpool_create_exit;
}
if (!list_empty(&blockpool->free_entry_list))
entry = (struct __vxge_hw_blockpool_entry *)
list_first_entry(&blockpool->free_entry_list,
struct __vxge_hw_blockpool_entry,
item);
if (entry == NULL)
entry =
kzalloc(sizeof(struct __vxge_hw_blockpool_entry),
GFP_KERNEL);
if (entry != NULL) {
list_del(&entry->item);
entry->length = VXGE_HW_BLOCK_SIZE;
entry->memblock = memblock;
entry->dma_addr = dma_addr;
entry->acc_handle = acc_handle;
entry->dma_handle = dma_handle;
list_add(&entry->item,
&blockpool->free_block_list);
blockpool->pool_size++;
} else {
__vxge_hw_blockpool_destroy(blockpool);
status = VXGE_HW_ERR_OUT_OF_MEMORY;
goto blockpool_create_exit;
}
}
blockpool_create_exit:
return status;
}
/*
* __vxge_hw_device_fifo_config_check - Check fifo configuration.
* Check the fifo configuration
*/
static enum vxge_hw_status
__vxge_hw_device_fifo_config_check(struct vxge_hw_fifo_config *fifo_config)
{
if ((fifo_config->fifo_blocks < VXGE_HW_MIN_FIFO_BLOCKS) ||
(fifo_config->fifo_blocks > VXGE_HW_MAX_FIFO_BLOCKS))
return VXGE_HW_BADCFG_FIFO_BLOCKS;
return VXGE_HW_OK;
}
/*
* __vxge_hw_device_vpath_config_check - Check vpath configuration.
* Check the vpath configuration
*/
static enum vxge_hw_status
__vxge_hw_device_vpath_config_check(struct vxge_hw_vp_config *vp_config)
{
enum vxge_hw_status status;
if ((vp_config->min_bandwidth < VXGE_HW_VPATH_BANDWIDTH_MIN) ||
(vp_config->min_bandwidth > VXGE_HW_VPATH_BANDWIDTH_MAX))
return VXGE_HW_BADCFG_VPATH_MIN_BANDWIDTH;
status = __vxge_hw_device_fifo_config_check(&vp_config->fifo);
if (status != VXGE_HW_OK)
return status;
if ((vp_config->mtu != VXGE_HW_VPATH_USE_FLASH_DEFAULT_INITIAL_MTU) &&
((vp_config->mtu < VXGE_HW_VPATH_MIN_INITIAL_MTU) ||
(vp_config->mtu > VXGE_HW_VPATH_MAX_INITIAL_MTU)))
return VXGE_HW_BADCFG_VPATH_MTU;
if ((vp_config->rpa_strip_vlan_tag !=
VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_USE_FLASH_DEFAULT) &&
(vp_config->rpa_strip_vlan_tag !=
VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE) &&
(vp_config->rpa_strip_vlan_tag !=
VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_DISABLE))
return VXGE_HW_BADCFG_VPATH_RPA_STRIP_VLAN_TAG;
return VXGE_HW_OK;
}
/*
* __vxge_hw_device_config_check - Check device configuration.
* Check the device configuration
*/
static enum vxge_hw_status
__vxge_hw_device_config_check(struct vxge_hw_device_config *new_config)
{
u32 i;
enum vxge_hw_status status;
if ((new_config->intr_mode != VXGE_HW_INTR_MODE_IRQLINE) &&
(new_config->intr_mode != VXGE_HW_INTR_MODE_MSIX) &&
(new_config->intr_mode != VXGE_HW_INTR_MODE_MSIX_ONE_SHOT) &&
(new_config->intr_mode != VXGE_HW_INTR_MODE_DEF))
return VXGE_HW_BADCFG_INTR_MODE;
if ((new_config->rts_mac_en != VXGE_HW_RTS_MAC_DISABLE) &&
(new_config->rts_mac_en != VXGE_HW_RTS_MAC_ENABLE))
return VXGE_HW_BADCFG_RTS_MAC_EN;
for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
status = __vxge_hw_device_vpath_config_check(
&new_config->vp_config[i]);
if (status != VXGE_HW_OK)
return status;
}
return VXGE_HW_OK;
}
/*
* vxge_hw_device_initialize - Initialize Titan device.
* Initialize Titan device. Note that all the arguments of this public API
* are 'IN', including @hldev. Driver cooperates with
* OS to find new Titan device, locate its PCI and memory spaces.
*
* When done, the driver allocates sizeof(struct __vxge_hw_device) bytes for HW
* to enable the latter to perform Titan hardware initialization.
*/
enum vxge_hw_status __devinit
vxge_hw_device_initialize(
struct __vxge_hw_device **devh,
struct vxge_hw_device_attr *attr,
struct vxge_hw_device_config *device_config)
{
u32 i;
u32 nblocks = 0;
struct __vxge_hw_device *hldev = NULL;
enum vxge_hw_status status = VXGE_HW_OK;
status = __vxge_hw_device_config_check(device_config);
if (status != VXGE_HW_OK)
goto exit;
hldev = vzalloc(sizeof(struct __vxge_hw_device));
if (hldev == NULL) {
status = VXGE_HW_ERR_OUT_OF_MEMORY;
goto exit;
}
hldev->magic = VXGE_HW_DEVICE_MAGIC;
vxge_hw_device_debug_set(hldev, VXGE_ERR, VXGE_COMPONENT_ALL);
/* apply config */
memcpy(&hldev->config, device_config,
sizeof(struct vxge_hw_device_config));
hldev->bar0 = attr->bar0;
hldev->pdev = attr->pdev;
hldev->uld_callbacks.link_up = attr->uld_callbacks.link_up;
hldev->uld_callbacks.link_down = attr->uld_callbacks.link_down;
hldev->uld_callbacks.crit_err = attr->uld_callbacks.crit_err;
__vxge_hw_device_pci_e_init(hldev);
status = __vxge_hw_device_reg_addr_get(hldev);
if (status != VXGE_HW_OK) {
vfree(hldev);
goto exit;
}
__vxge_hw_device_host_info_get(hldev);
/* Incrementing for stats blocks */
nblocks++;
for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
if (!(hldev->vpath_assignments & vxge_mBIT(i)))
continue;
if (device_config->vp_config[i].ring.enable ==
VXGE_HW_RING_ENABLE)
nblocks += device_config->vp_config[i].ring.ring_blocks;
if (device_config->vp_config[i].fifo.enable ==
VXGE_HW_FIFO_ENABLE)
nblocks += device_config->vp_config[i].fifo.fifo_blocks;
nblocks++;
}
if (__vxge_hw_blockpool_create(hldev,
&hldev->block_pool,
device_config->dma_blockpool_initial + nblocks,
device_config->dma_blockpool_max + nblocks) != VXGE_HW_OK) {
vxge_hw_device_terminate(hldev);
status = VXGE_HW_ERR_OUT_OF_MEMORY;
goto exit;
}
status = __vxge_hw_device_initialize(hldev);
if (status != VXGE_HW_OK) {
vxge_hw_device_terminate(hldev);
goto exit;
}
*devh = hldev;
exit:
return status;
}
/*
* vxge_hw_device_terminate - Terminate Titan device.
* Terminate HW device.
*/
void
vxge_hw_device_terminate(struct __vxge_hw_device *hldev)
{
vxge_assert(hldev->magic == VXGE_HW_DEVICE_MAGIC);
hldev->magic = VXGE_HW_DEVICE_DEAD;
__vxge_hw_blockpool_destroy(&hldev->block_pool);
vfree(hldev);
}
/*
* __vxge_hw_vpath_stats_access - Get the statistics from the given location
* and offset and perform an operation
*/
static enum vxge_hw_status
__vxge_hw_vpath_stats_access(struct __vxge_hw_virtualpath *vpath,
u32 operation, u32 offset, u64 *stat)
{
u64 val64;
enum vxge_hw_status status = VXGE_HW_OK;
struct vxge_hw_vpath_reg __iomem *vp_reg;
if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
status = VXGE_HW_ERR_VPATH_NOT_OPEN;
goto vpath_stats_access_exit;
}
vp_reg = vpath->vp_reg;
val64 = VXGE_HW_XMAC_STATS_ACCESS_CMD_OP(operation) |
VXGE_HW_XMAC_STATS_ACCESS_CMD_STROBE |
VXGE_HW_XMAC_STATS_ACCESS_CMD_OFFSET_SEL(offset);
status = __vxge_hw_pio_mem_write64(val64,
&vp_reg->xmac_stats_access_cmd,
VXGE_HW_XMAC_STATS_ACCESS_CMD_STROBE,
vpath->hldev->config.device_poll_millis);
if ((status == VXGE_HW_OK) && (operation == VXGE_HW_STATS_OP_READ))
*stat = readq(&vp_reg->xmac_stats_access_data);
else
*stat = 0;
vpath_stats_access_exit:
return status;
}
/*
* __vxge_hw_vpath_xmac_tx_stats_get - Get the TX Statistics of a vpath
*/
static enum vxge_hw_status
__vxge_hw_vpath_xmac_tx_stats_get(struct __vxge_hw_virtualpath *vpath,
struct vxge_hw_xmac_vpath_tx_stats *vpath_tx_stats)
{
u64 *val64;
int i;
u32 offset = VXGE_HW_STATS_VPATH_TX_OFFSET;
enum vxge_hw_status status = VXGE_HW_OK;
val64 = (u64 *)vpath_tx_stats;
if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
status = VXGE_HW_ERR_VPATH_NOT_OPEN;
goto exit;
}
for (i = 0; i < sizeof(struct vxge_hw_xmac_vpath_tx_stats) / 8; i++) {
status = __vxge_hw_vpath_stats_access(vpath,
VXGE_HW_STATS_OP_READ,
offset, val64);
if (status != VXGE_HW_OK)
goto exit;
offset++;
val64++;
}
exit:
return status;
}
/*
* __vxge_hw_vpath_xmac_rx_stats_get - Get the RX Statistics of a vpath
*/
static enum vxge_hw_status
__vxge_hw_vpath_xmac_rx_stats_get(struct __vxge_hw_virtualpath *vpath,
struct vxge_hw_xmac_vpath_rx_stats *vpath_rx_stats)
{
u64 *val64;
enum vxge_hw_status status = VXGE_HW_OK;
int i;
u32 offset = VXGE_HW_STATS_VPATH_RX_OFFSET;
val64 = (u64 *) vpath_rx_stats;
if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
status = VXGE_HW_ERR_VPATH_NOT_OPEN;
goto exit;
}
for (i = 0; i < sizeof(struct vxge_hw_xmac_vpath_rx_stats) / 8; i++) {
status = __vxge_hw_vpath_stats_access(vpath,
VXGE_HW_STATS_OP_READ,
offset >> 3, val64);
if (status != VXGE_HW_OK)
goto exit;
offset += 8;
val64++;
}
exit:
return status;
}
/*
* __vxge_hw_vpath_stats_get - Get the vpath hw statistics.
*/
static enum vxge_hw_status
__vxge_hw_vpath_stats_get(struct __vxge_hw_virtualpath *vpath,
struct vxge_hw_vpath_stats_hw_info *hw_stats)
{
u64 val64;
enum vxge_hw_status status = VXGE_HW_OK;
struct vxge_hw_vpath_reg __iomem *vp_reg;
if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
status = VXGE_HW_ERR_VPATH_NOT_OPEN;
goto exit;
}
vp_reg = vpath->vp_reg;
val64 = readq(&vp_reg->vpath_debug_stats0);
hw_stats->ini_num_mwr_sent =
(u32)VXGE_HW_VPATH_DEBUG_STATS0_GET_INI_NUM_MWR_SENT(val64);
val64 = readq(&vp_reg->vpath_debug_stats1);
hw_stats->ini_num_mrd_sent =
(u32)VXGE_HW_VPATH_DEBUG_STATS1_GET_INI_NUM_MRD_SENT(val64);
val64 = readq(&vp_reg->vpath_debug_stats2);
hw_stats->ini_num_cpl_rcvd =
(u32)VXGE_HW_VPATH_DEBUG_STATS2_GET_INI_NUM_CPL_RCVD(val64);
val64 = readq(&vp_reg->vpath_debug_stats3);
hw_stats->ini_num_mwr_byte_sent =
VXGE_HW_VPATH_DEBUG_STATS3_GET_INI_NUM_MWR_BYTE_SENT(val64);
val64 = readq(&vp_reg->vpath_debug_stats4);
hw_stats->ini_num_cpl_byte_rcvd =
VXGE_HW_VPATH_DEBUG_STATS4_GET_INI_NUM_CPL_BYTE_RCVD(val64);
val64 = readq(&vp_reg->vpath_debug_stats5);
hw_stats->wrcrdtarb_xoff =
(u32)VXGE_HW_VPATH_DEBUG_STATS5_GET_WRCRDTARB_XOFF(val64);
val64 = readq(&vp_reg->vpath_debug_stats6);
hw_stats->rdcrdtarb_xoff =
(u32)VXGE_HW_VPATH_DEBUG_STATS6_GET_RDCRDTARB_XOFF(val64);
val64 = readq(&vp_reg->vpath_genstats_count01);
hw_stats->vpath_genstats_count0 =
(u32)VXGE_HW_VPATH_GENSTATS_COUNT01_GET_PPIF_VPATH_GENSTATS_COUNT0(
val64);
val64 = readq(&vp_reg->vpath_genstats_count01);
hw_stats->vpath_genstats_count1 =
(u32)VXGE_HW_VPATH_GENSTATS_COUNT01_GET_PPIF_VPATH_GENSTATS_COUNT1(
val64);
val64 = readq(&vp_reg->vpath_genstats_count23);
hw_stats->vpath_genstats_count2 =
(u32)VXGE_HW_VPATH_GENSTATS_COUNT23_GET_PPIF_VPATH_GENSTATS_COUNT2(
val64);
val64 = readq(&vp_reg->vpath_genstats_count01);
hw_stats->vpath_genstats_count3 =
(u32)VXGE_HW_VPATH_GENSTATS_COUNT23_GET_PPIF_VPATH_GENSTATS_COUNT3(
val64);
val64 = readq(&vp_reg->vpath_genstats_count4);
hw_stats->vpath_genstats_count4 =
(u32)VXGE_HW_VPATH_GENSTATS_COUNT4_GET_PPIF_VPATH_GENSTATS_COUNT4(
val64);
val64 = readq(&vp_reg->vpath_genstats_count5);
hw_stats->vpath_genstats_count5 =
(u32)VXGE_HW_VPATH_GENSTATS_COUNT5_GET_PPIF_VPATH_GENSTATS_COUNT5(
val64);
status = __vxge_hw_vpath_xmac_tx_stats_get(vpath, &hw_stats->tx_stats);
if (status != VXGE_HW_OK)
goto exit;
status = __vxge_hw_vpath_xmac_rx_stats_get(vpath, &hw_stats->rx_stats);
if (status != VXGE_HW_OK)
goto exit;
VXGE_HW_VPATH_STATS_PIO_READ(
VXGE_HW_STATS_VPATH_PROG_EVENT_VNUM0_OFFSET);
hw_stats->prog_event_vnum0 =
(u32)VXGE_HW_STATS_GET_VPATH_PROG_EVENT_VNUM0(val64);
hw_stats->prog_event_vnum1 =
(u32)VXGE_HW_STATS_GET_VPATH_PROG_EVENT_VNUM1(val64);
VXGE_HW_VPATH_STATS_PIO_READ(
VXGE_HW_STATS_VPATH_PROG_EVENT_VNUM2_OFFSET);
hw_stats->prog_event_vnum2 =
(u32)VXGE_HW_STATS_GET_VPATH_PROG_EVENT_VNUM2(val64);
hw_stats->prog_event_vnum3 =
(u32)VXGE_HW_STATS_GET_VPATH_PROG_EVENT_VNUM3(val64);
val64 = readq(&vp_reg->rx_multi_cast_stats);
hw_stats->rx_multi_cast_frame_discard =
(u16)VXGE_HW_RX_MULTI_CAST_STATS_GET_FRAME_DISCARD(val64);
val64 = readq(&vp_reg->rx_frm_transferred);
hw_stats->rx_frm_transferred =
(u32)VXGE_HW_RX_FRM_TRANSFERRED_GET_RX_FRM_TRANSFERRED(val64);
val64 = readq(&vp_reg->rxd_returned);
hw_stats->rxd_returned =
(u16)VXGE_HW_RXD_RETURNED_GET_RXD_RETURNED(val64);
val64 = readq(&vp_reg->dbg_stats_rx_mpa);
hw_stats->rx_mpa_len_fail_frms =
(u16)VXGE_HW_DBG_STATS_GET_RX_MPA_LEN_FAIL_FRMS(val64);
hw_stats->rx_mpa_mrk_fail_frms =
(u16)VXGE_HW_DBG_STATS_GET_RX_MPA_MRK_FAIL_FRMS(val64);
hw_stats->rx_mpa_crc_fail_frms =
(u16)VXGE_HW_DBG_STATS_GET_RX_MPA_CRC_FAIL_FRMS(val64);
val64 = readq(&vp_reg->dbg_stats_rx_fau);
hw_stats->rx_permitted_frms =
(u16)VXGE_HW_DBG_STATS_GET_RX_FAU_RX_PERMITTED_FRMS(val64);
hw_stats->rx_vp_reset_discarded_frms =
(u16)VXGE_HW_DBG_STATS_GET_RX_FAU_RX_VP_RESET_DISCARDED_FRMS(val64);
hw_stats->rx_wol_frms =
(u16)VXGE_HW_DBG_STATS_GET_RX_FAU_RX_WOL_FRMS(val64);
val64 = readq(&vp_reg->tx_vp_reset_discarded_frms);
hw_stats->tx_vp_reset_discarded_frms =
(u16)VXGE_HW_TX_VP_RESET_DISCARDED_FRMS_GET_TX_VP_RESET_DISCARDED_FRMS(
val64);
exit:
return status;
}
/*
* vxge_hw_device_stats_get - Get the device hw statistics.
* Returns the vpath h/w stats for the device.
*/
enum vxge_hw_status
vxge_hw_device_stats_get(struct __vxge_hw_device *hldev,
struct vxge_hw_device_stats_hw_info *hw_stats)
{
u32 i;
enum vxge_hw_status status = VXGE_HW_OK;
for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
if (!(hldev->vpaths_deployed & vxge_mBIT(i)) ||
(hldev->virtual_paths[i].vp_open ==
VXGE_HW_VP_NOT_OPEN))
continue;
memcpy(hldev->virtual_paths[i].hw_stats_sav,
hldev->virtual_paths[i].hw_stats,
sizeof(struct vxge_hw_vpath_stats_hw_info));
status = __vxge_hw_vpath_stats_get(
&hldev->virtual_paths[i],
hldev->virtual_paths[i].hw_stats);
}
memcpy(hw_stats, &hldev->stats.hw_dev_info_stats,
sizeof(struct vxge_hw_device_stats_hw_info));
return status;
}
/*
* vxge_hw_driver_stats_get - Get the device sw statistics.
* Returns the vpath s/w stats for the device.
*/
enum vxge_hw_status vxge_hw_driver_stats_get(
struct __vxge_hw_device *hldev,
struct vxge_hw_device_stats_sw_info *sw_stats)
{
enum vxge_hw_status status = VXGE_HW_OK;
memcpy(sw_stats, &hldev->stats.sw_dev_info_stats,
sizeof(struct vxge_hw_device_stats_sw_info));
return status;
}
/*
* vxge_hw_mrpcim_stats_access - Access the statistics from the given location
* and offset and perform an operation
* Get the statistics from the given location and offset.
*/
enum vxge_hw_status
vxge_hw_mrpcim_stats_access(struct __vxge_hw_device *hldev,
u32 operation, u32 location, u32 offset, u64 *stat)
{
u64 val64;
enum vxge_hw_status status = VXGE_HW_OK;
status = __vxge_hw_device_is_privilaged(hldev->host_type,
hldev->func_id);
if (status != VXGE_HW_OK)
goto exit;
val64 = VXGE_HW_XMAC_STATS_SYS_CMD_OP(operation) |
VXGE_HW_XMAC_STATS_SYS_CMD_STROBE |
VXGE_HW_XMAC_STATS_SYS_CMD_LOC_SEL(location) |
VXGE_HW_XMAC_STATS_SYS_CMD_OFFSET_SEL(offset);
status = __vxge_hw_pio_mem_write64(val64,
&hldev->mrpcim_reg->xmac_stats_sys_cmd,
VXGE_HW_XMAC_STATS_SYS_CMD_STROBE,
hldev->config.device_poll_millis);
if ((status == VXGE_HW_OK) && (operation == VXGE_HW_STATS_OP_READ))
*stat = readq(&hldev->mrpcim_reg->xmac_stats_sys_data);
else
*stat = 0;
exit:
return status;
}
/*
* vxge_hw_device_xmac_aggr_stats_get - Get the Statistics on aggregate port
* Get the Statistics on aggregate port
*/
static enum vxge_hw_status
vxge_hw_device_xmac_aggr_stats_get(struct __vxge_hw_device *hldev, u32 port,
struct vxge_hw_xmac_aggr_stats *aggr_stats)
{
u64 *val64;
int i;
u32 offset = VXGE_HW_STATS_AGGRn_OFFSET;
enum vxge_hw_status status = VXGE_HW_OK;
val64 = (u64 *)aggr_stats;
status = __vxge_hw_device_is_privilaged(hldev->host_type,
hldev->func_id);
if (status != VXGE_HW_OK)
goto exit;
for (i = 0; i < sizeof(struct vxge_hw_xmac_aggr_stats) / 8; i++) {
status = vxge_hw_mrpcim_stats_access(hldev,
VXGE_HW_STATS_OP_READ,
VXGE_HW_STATS_LOC_AGGR,
((offset + (104 * port)) >> 3), val64);
if (status != VXGE_HW_OK)
goto exit;
offset += 8;
val64++;
}
exit:
return status;
}
/*
* vxge_hw_device_xmac_port_stats_get - Get the Statistics on a port
* Get the Statistics on port
*/
static enum vxge_hw_status
vxge_hw_device_xmac_port_stats_get(struct __vxge_hw_device *hldev, u32 port,
struct vxge_hw_xmac_port_stats *port_stats)
{
u64 *val64;
enum vxge_hw_status status = VXGE_HW_OK;
int i;
u32 offset = 0x0;
val64 = (u64 *) port_stats;
status = __vxge_hw_device_is_privilaged(hldev->host_type,
hldev->func_id);
if (status != VXGE_HW_OK)
goto exit;
for (i = 0; i < sizeof(struct vxge_hw_xmac_port_stats) / 8; i++) {
status = vxge_hw_mrpcim_stats_access(hldev,
VXGE_HW_STATS_OP_READ,
VXGE_HW_STATS_LOC_AGGR,
((offset + (608 * port)) >> 3), val64);
if (status != VXGE_HW_OK)
goto exit;
offset += 8;
val64++;
}
exit:
return status;
}
/*
* vxge_hw_device_xmac_stats_get - Get the XMAC Statistics
* Get the XMAC Statistics
*/
enum vxge_hw_status
vxge_hw_device_xmac_stats_get(struct __vxge_hw_device *hldev,
struct vxge_hw_xmac_stats *xmac_stats)
{
enum vxge_hw_status status = VXGE_HW_OK;
u32 i;
status = vxge_hw_device_xmac_aggr_stats_get(hldev,
0, &xmac_stats->aggr_stats[0]);
if (status != VXGE_HW_OK)
goto exit;
status = vxge_hw_device_xmac_aggr_stats_get(hldev,
1, &xmac_stats->aggr_stats[1]);
if (status != VXGE_HW_OK)
goto exit;
for (i = 0; i <= VXGE_HW_MAC_MAX_MAC_PORT_ID; i++) {
status = vxge_hw_device_xmac_port_stats_get(hldev,
i, &xmac_stats->port_stats[i]);
if (status != VXGE_HW_OK)
goto exit;
}
for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
if (!(hldev->vpaths_deployed & vxge_mBIT(i)))
continue;
status = __vxge_hw_vpath_xmac_tx_stats_get(
&hldev->virtual_paths[i],
&xmac_stats->vpath_tx_stats[i]);
if (status != VXGE_HW_OK)
goto exit;
status = __vxge_hw_vpath_xmac_rx_stats_get(
&hldev->virtual_paths[i],
&xmac_stats->vpath_rx_stats[i]);
if (status != VXGE_HW_OK)
goto exit;
}
exit:
return status;
}
/*
* vxge_hw_device_debug_set - Set the debug module, level and timestamp
* This routine is used to dynamically change the debug output
*/
void vxge_hw_device_debug_set(struct __vxge_hw_device *hldev,
enum vxge_debug_level level, u32 mask)
{
if (hldev == NULL)
return;
#if defined(VXGE_DEBUG_TRACE_MASK) || \
defined(VXGE_DEBUG_ERR_MASK)
hldev->debug_module_mask = mask;
hldev->debug_level = level;
#endif
#if defined(VXGE_DEBUG_ERR_MASK)
hldev->level_err = level & VXGE_ERR;
#endif
#if defined(VXGE_DEBUG_TRACE_MASK)
hldev->level_trace = level & VXGE_TRACE;
#endif
}
/*
* vxge_hw_device_error_level_get - Get the error level
* This routine returns the current error level set
*/
u32 vxge_hw_device_error_level_get(struct __vxge_hw_device *hldev)
{
#if defined(VXGE_DEBUG_ERR_MASK)
if (hldev == NULL)
return VXGE_ERR;
else
return hldev->level_err;
#else
return 0;
#endif
}
/*
* vxge_hw_device_trace_level_get - Get the trace level
* This routine returns the current trace level set
*/
u32 vxge_hw_device_trace_level_get(struct __vxge_hw_device *hldev)
{
#if defined(VXGE_DEBUG_TRACE_MASK)
if (hldev == NULL)
return VXGE_TRACE;
else
return hldev->level_trace;
#else
return 0;
#endif
}
/*
* vxge_hw_getpause_data -Pause frame frame generation and reception.
* Returns the Pause frame generation and reception capability of the NIC.
*/
enum vxge_hw_status vxge_hw_device_getpause_data(struct __vxge_hw_device *hldev,
u32 port, u32 *tx, u32 *rx)
{
u64 val64;
enum vxge_hw_status status = VXGE_HW_OK;
if ((hldev == NULL) || (hldev->magic != VXGE_HW_DEVICE_MAGIC)) {
status = VXGE_HW_ERR_INVALID_DEVICE;
goto exit;
}
if (port > VXGE_HW_MAC_MAX_MAC_PORT_ID) {
status = VXGE_HW_ERR_INVALID_PORT;
goto exit;
}
if (!(hldev->access_rights & VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM)) {
status = VXGE_HW_ERR_PRIVILAGED_OPEARATION;
goto exit;
}
val64 = readq(&hldev->mrpcim_reg->rxmac_pause_cfg_port[port]);
if (val64 & VXGE_HW_RXMAC_PAUSE_CFG_PORT_GEN_EN)
*tx = 1;
if (val64 & VXGE_HW_RXMAC_PAUSE_CFG_PORT_RCV_EN)
*rx = 1;
exit:
return status;
}
/*
* vxge_hw_device_setpause_data - set/reset pause frame generation.
* It can be used to set or reset Pause frame generation or reception
* support of the NIC.
*/
enum vxge_hw_status vxge_hw_device_setpause_data(struct __vxge_hw_device *hldev,
u32 port, u32 tx, u32 rx)
{
u64 val64;
enum vxge_hw_status status = VXGE_HW_OK;
if ((hldev == NULL) || (hldev->magic != VXGE_HW_DEVICE_MAGIC)) {
status = VXGE_HW_ERR_INVALID_DEVICE;
goto exit;
}
if (port > VXGE_HW_MAC_MAX_MAC_PORT_ID) {
status = VXGE_HW_ERR_INVALID_PORT;
goto exit;
}
status = __vxge_hw_device_is_privilaged(hldev->host_type,
hldev->func_id);
if (status != VXGE_HW_OK)
goto exit;
val64 = readq(&hldev->mrpcim_reg->rxmac_pause_cfg_port[port]);
if (tx)
val64 |= VXGE_HW_RXMAC_PAUSE_CFG_PORT_GEN_EN;
else
val64 &= ~VXGE_HW_RXMAC_PAUSE_CFG_PORT_GEN_EN;
if (rx)
val64 |= VXGE_HW_RXMAC_PAUSE_CFG_PORT_RCV_EN;
else
val64 &= ~VXGE_HW_RXMAC_PAUSE_CFG_PORT_RCV_EN;
writeq(val64, &hldev->mrpcim_reg->rxmac_pause_cfg_port[port]);
exit:
return status;
}
u16 vxge_hw_device_link_width_get(struct __vxge_hw_device *hldev)
{
int link_width, exp_cap;
u16 lnk;
exp_cap = pci_find_capability(hldev->pdev, PCI_CAP_ID_EXP);
pci_read_config_word(hldev->pdev, exp_cap + PCI_EXP_LNKSTA, &lnk);
link_width = (lnk & VXGE_HW_PCI_EXP_LNKCAP_LNK_WIDTH) >> 4;
return link_width;
}
/*
* __vxge_hw_ring_block_memblock_idx - Return the memblock index
* This function returns the index of memory block
*/
static inline u32
__vxge_hw_ring_block_memblock_idx(u8 *block)
{
return (u32)*((u64 *)(block + VXGE_HW_RING_MEMBLOCK_IDX_OFFSET));
}
/*
* __vxge_hw_ring_block_memblock_idx_set - Sets the memblock index
* This function sets index to a memory block
*/
static inline void
__vxge_hw_ring_block_memblock_idx_set(u8 *block, u32 memblock_idx)
{
*((u64 *)(block + VXGE_HW_RING_MEMBLOCK_IDX_OFFSET)) = memblock_idx;
}
/*
* __vxge_hw_ring_block_next_pointer_set - Sets the next block pointer
* in RxD block
* Sets the next block pointer in RxD block
*/
static inline void
__vxge_hw_ring_block_next_pointer_set(u8 *block, dma_addr_t dma_next)
{
*((u64 *)(block + VXGE_HW_RING_NEXT_BLOCK_POINTER_OFFSET)) = dma_next;
}
/*
* __vxge_hw_ring_first_block_address_get - Returns the dma address of the
* first block
* Returns the dma address of the first RxD block
*/
static u64 __vxge_hw_ring_first_block_address_get(struct __vxge_hw_ring *ring)
{
struct vxge_hw_mempool_dma *dma_object;
dma_object = ring->mempool->memblocks_dma_arr;
vxge_assert(dma_object != NULL);
return dma_object->addr;
}
/*
* __vxge_hw_ring_item_dma_addr - Return the dma address of an item
* This function returns the dma address of a given item
*/
static dma_addr_t __vxge_hw_ring_item_dma_addr(struct vxge_hw_mempool *mempoolh,
void *item)
{
u32 memblock_idx;
void *memblock;
struct vxge_hw_mempool_dma *memblock_dma_object;
ptrdiff_t dma_item_offset;
/* get owner memblock index */
memblock_idx = __vxge_hw_ring_block_memblock_idx(item);
/* get owner memblock by memblock index */
memblock = mempoolh->memblocks_arr[memblock_idx];
/* get memblock DMA object by memblock index */
memblock_dma_object = mempoolh->memblocks_dma_arr + memblock_idx;
/* calculate offset in the memblock of this item */
dma_item_offset = (u8 *)item - (u8 *)memblock;
return memblock_dma_object->addr + dma_item_offset;
}
/*
* __vxge_hw_ring_rxdblock_link - Link the RxD blocks
* This function returns the dma address of a given item
*/
static void __vxge_hw_ring_rxdblock_link(struct vxge_hw_mempool *mempoolh,
struct __vxge_hw_ring *ring, u32 from,
u32 to)
{
u8 *to_item , *from_item;
dma_addr_t to_dma;
/* get "from" RxD block */
from_item = mempoolh->items_arr[from];
vxge_assert(from_item);
/* get "to" RxD block */
to_item = mempoolh->items_arr[to];
vxge_assert(to_item);
/* return address of the beginning of previous RxD block */
to_dma = __vxge_hw_ring_item_dma_addr(mempoolh, to_item);
/* set next pointer for this RxD block to point on
* previous item's DMA start address */
__vxge_hw_ring_block_next_pointer_set(from_item, to_dma);
}
/*
* __vxge_hw_ring_mempool_item_alloc - Allocate List blocks for RxD
* block callback
* This function is callback passed to __vxge_hw_mempool_create to create memory
* pool for RxD block
*/
static void
__vxge_hw_ring_mempool_item_alloc(struct vxge_hw_mempool *mempoolh,
u32 memblock_index,
struct vxge_hw_mempool_dma *dma_object,
u32 index, u32 is_last)
{
u32 i;
void *item = mempoolh->items_arr[index];
struct __vxge_hw_ring *ring =
(struct __vxge_hw_ring *)mempoolh->userdata;
/* format rxds array */
for (i = 0; i < ring->rxds_per_block; i++) {
void *rxdblock_priv;
void *uld_priv;
struct vxge_hw_ring_rxd_1 *rxdp;
u32 reserve_index = ring->channel.reserve_ptr -
(index * ring->rxds_per_block + i + 1);
u32 memblock_item_idx;
ring->channel.reserve_arr[reserve_index] = ((u8 *)item) +
i * ring->rxd_size;
/* Note: memblock_item_idx is index of the item within
* the memblock. For instance, in case of three RxD-blocks
* per memblock this value can be 0, 1 or 2. */
rxdblock_priv = __vxge_hw_mempool_item_priv(mempoolh,
memblock_index, item,
&memblock_item_idx);
rxdp = (struct vxge_hw_ring_rxd_1 *)
ring->channel.reserve_arr[reserve_index];
uld_priv = ((u8 *)rxdblock_priv + ring->rxd_priv_size * i);
/* pre-format Host_Control */
rxdp->host_control = (u64)(size_t)uld_priv;
}
__vxge_hw_ring_block_memblock_idx_set(item, memblock_index);
if (is_last) {
/* link last one with first one */
__vxge_hw_ring_rxdblock_link(mempoolh, ring, index, 0);
}
if (index > 0) {
/* link this RxD block with previous one */
__vxge_hw_ring_rxdblock_link(mempoolh, ring, index - 1, index);
}
}
/*
* __vxge_hw_ring_replenish - Initial replenish of RxDs
* This function replenishes the RxDs from reserve array to work array
*/
enum vxge_hw_status
vxge_hw_ring_replenish(struct __vxge_hw_ring *ring)
{
void *rxd;
struct __vxge_hw_channel *channel;
enum vxge_hw_status status = VXGE_HW_OK;
channel = &ring->channel;
while (vxge_hw_channel_dtr_count(channel) > 0) {
status = vxge_hw_ring_rxd_reserve(ring, &rxd);
vxge_assert(status == VXGE_HW_OK);
if (ring->rxd_init) {
status = ring->rxd_init(rxd, channel->userdata);
if (status != VXGE_HW_OK) {
vxge_hw_ring_rxd_free(ring, rxd);
goto exit;
}
}
vxge_hw_ring_rxd_post(ring, rxd);
}
status = VXGE_HW_OK;
exit:
return status;
}
/*
* __vxge_hw_channel_allocate - Allocate memory for channel
* This function allocates required memory for the channel and various arrays
* in the channel
*/
static struct __vxge_hw_channel *
__vxge_hw_channel_allocate(struct __vxge_hw_vpath_handle *vph,
enum __vxge_hw_channel_type type,
u32 length, u32 per_dtr_space,
void *userdata)
{
struct __vxge_hw_channel *channel;
struct __vxge_hw_device *hldev;
int size = 0;
u32 vp_id;
hldev = vph->vpath->hldev;
vp_id = vph->vpath->vp_id;
switch (type) {
case VXGE_HW_CHANNEL_TYPE_FIFO:
size = sizeof(struct __vxge_hw_fifo);
break;
case VXGE_HW_CHANNEL_TYPE_RING:
size = sizeof(struct __vxge_hw_ring);
break;
default:
break;
}
channel = kzalloc(size, GFP_KERNEL);
if (channel == NULL)
goto exit0;
INIT_LIST_HEAD(&channel->item);
channel->common_reg = hldev->common_reg;
channel->first_vp_id = hldev->first_vp_id;
channel->type = type;
channel->devh = hldev;
channel->vph = vph;
channel->userdata = userdata;
channel->per_dtr_space = per_dtr_space;
channel->length = length;
channel->vp_id = vp_id;
channel->work_arr = kzalloc(sizeof(void *)*length, GFP_KERNEL);
if (channel->work_arr == NULL)
goto exit1;
channel->free_arr = kzalloc(sizeof(void *)*length, GFP_KERNEL);
if (channel->free_arr == NULL)
goto exit1;
channel->free_ptr = length;
channel->reserve_arr = kzalloc(sizeof(void *)*length, GFP_KERNEL);
if (channel->reserve_arr == NULL)
goto exit1;
channel->reserve_ptr = length;
channel->reserve_top = 0;
channel->orig_arr = kzalloc(sizeof(void *)*length, GFP_KERNEL);
if (channel->orig_arr == NULL)
goto exit1;
return channel;
exit1:
__vxge_hw_channel_free(channel);
exit0:
return NULL;
}
/*
* vxge_hw_blockpool_block_add - callback for vxge_os_dma_malloc_async
* Adds a block to block pool
*/
static void vxge_hw_blockpool_block_add(struct __vxge_hw_device *devh,
void *block_addr,
u32 length,
struct pci_dev *dma_h,
struct pci_dev *acc_handle)
{
struct __vxge_hw_blockpool *blockpool;
struct __vxge_hw_blockpool_entry *entry = NULL;
dma_addr_t dma_addr;
enum vxge_hw_status status = VXGE_HW_OK;
u32 req_out;
blockpool = &devh->block_pool;
if (block_addr == NULL) {
blockpool->req_out--;
status = VXGE_HW_FAIL;
goto exit;
}
dma_addr = pci_map_single(devh->pdev, block_addr, length,
PCI_DMA_BIDIRECTIONAL);
if (unlikely(pci_dma_mapping_error(devh->pdev, dma_addr))) {
vxge_os_dma_free(devh->pdev, block_addr, &acc_handle);
blockpool->req_out--;
status = VXGE_HW_FAIL;
goto exit;
}
if (!list_empty(&blockpool->free_entry_list))
entry = (struct __vxge_hw_blockpool_entry *)
list_first_entry(&blockpool->free_entry_list,
struct __vxge_hw_blockpool_entry,
item);
if (entry == NULL)
entry = vmalloc(sizeof(struct __vxge_hw_blockpool_entry));
else
list_del(&entry->item);
if (entry != NULL) {
entry->length = length;
entry->memblock = block_addr;
entry->dma_addr = dma_addr;
entry->acc_handle = acc_handle;
entry->dma_handle = dma_h;
list_add(&entry->item, &blockpool->free_block_list);
blockpool->pool_size++;
status = VXGE_HW_OK;
} else
status = VXGE_HW_ERR_OUT_OF_MEMORY;
blockpool->req_out--;
req_out = blockpool->req_out;
exit:
return;
}
static inline void
vxge_os_dma_malloc_async(struct pci_dev *pdev, void *devh, unsigned long size)
{
gfp_t flags;
void *vaddr;
if (in_interrupt())
flags = GFP_ATOMIC | GFP_DMA;
else
flags = GFP_KERNEL | GFP_DMA;
vaddr = kmalloc((size), flags);
vxge_hw_blockpool_block_add(devh, vaddr, size, pdev, pdev);
}
/*
* __vxge_hw_blockpool_blocks_add - Request additional blocks
*/
static
void __vxge_hw_blockpool_blocks_add(struct __vxge_hw_blockpool *blockpool)
{
u32 nreq = 0, i;
if ((blockpool->pool_size + blockpool->req_out) <
VXGE_HW_MIN_DMA_BLOCK_POOL_SIZE) {
nreq = VXGE_HW_INCR_DMA_BLOCK_POOL_SIZE;
blockpool->req_out += nreq;
}
for (i = 0; i < nreq; i++)
vxge_os_dma_malloc_async(
((struct __vxge_hw_device *)blockpool->hldev)->pdev,
blockpool->hldev, VXGE_HW_BLOCK_SIZE);
}
/*
* __vxge_hw_blockpool_malloc - Allocate a memory block from pool
* Allocates a block of memory of given size, either from block pool
* or by calling vxge_os_dma_malloc()
*/
static void *__vxge_hw_blockpool_malloc(struct __vxge_hw_device *devh, u32 size,
struct vxge_hw_mempool_dma *dma_object)
{
struct __vxge_hw_blockpool_entry *entry = NULL;
struct __vxge_hw_blockpool *blockpool;
void *memblock = NULL;
enum vxge_hw_status status = VXGE_HW_OK;
blockpool = &devh->block_pool;
if (size != blockpool->block_size) {
memblock = vxge_os_dma_malloc(devh->pdev, size,
&dma_object->handle,
&dma_object->acc_handle);
if (memblock == NULL) {
status = VXGE_HW_ERR_OUT_OF_MEMORY;
goto exit;
}
dma_object->addr = pci_map_single(devh->pdev, memblock, size,
PCI_DMA_BIDIRECTIONAL);
if (unlikely(pci_dma_mapping_error(devh->pdev,
dma_object->addr))) {
vxge_os_dma_free(devh->pdev, memblock,
&dma_object->acc_handle);
status = VXGE_HW_ERR_OUT_OF_MEMORY;
goto exit;
}
} else {
if (!list_empty(&blockpool->free_block_list))
entry = (struct __vxge_hw_blockpool_entry *)
list_first_entry(&blockpool->free_block_list,
struct __vxge_hw_blockpool_entry,
item);
if (entry != NULL) {
list_del(&entry->item);
dma_object->addr = entry->dma_addr;
dma_object->handle = entry->dma_handle;
dma_object->acc_handle = entry->acc_handle;
memblock = entry->memblock;
list_add(&entry->item,
&blockpool->free_entry_list);
blockpool->pool_size--;
}
if (memblock != NULL)
__vxge_hw_blockpool_blocks_add(blockpool);
}
exit:
return memblock;
}
/*
* __vxge_hw_blockpool_blocks_remove - Free additional blocks
*/
static void
__vxge_hw_blockpool_blocks_remove(struct __vxge_hw_blockpool *blockpool)
{
struct list_head *p, *n;
list_for_each_safe(p, n, &blockpool->free_block_list) {
if (blockpool->pool_size < blockpool->pool_max)
break;
pci_unmap_single(
((struct __vxge_hw_device *)blockpool->hldev)->pdev,
((struct __vxge_hw_blockpool_entry *)p)->dma_addr,
((struct __vxge_hw_blockpool_entry *)p)->length,
PCI_DMA_BIDIRECTIONAL);
vxge_os_dma_free(
((struct __vxge_hw_device *)blockpool->hldev)->pdev,
((struct __vxge_hw_blockpool_entry *)p)->memblock,
&((struct __vxge_hw_blockpool_entry *)p)->acc_handle);
list_del(&((struct __vxge_hw_blockpool_entry *)p)->item);
list_add(p, &blockpool->free_entry_list);
blockpool->pool_size--;
}
}
/*
* __vxge_hw_blockpool_free - Frees the memory allcoated with
* __vxge_hw_blockpool_malloc
*/
static void __vxge_hw_blockpool_free(struct __vxge_hw_device *devh,
void *memblock, u32 size,
struct vxge_hw_mempool_dma *dma_object)
{
struct __vxge_hw_blockpool_entry *entry = NULL;
struct __vxge_hw_blockpool *blockpool;
enum vxge_hw_status status = VXGE_HW_OK;
blockpool = &devh->block_pool;
if (size != blockpool->block_size) {
pci_unmap_single(devh->pdev, dma_object->addr, size,
PCI_DMA_BIDIRECTIONAL);
vxge_os_dma_free(devh->pdev, memblock, &dma_object->acc_handle);
} else {
if (!list_empty(&blockpool->free_entry_list))
entry = (struct __vxge_hw_blockpool_entry *)
list_first_entry(&blockpool->free_entry_list,
struct __vxge_hw_blockpool_entry,
item);
if (entry == NULL)
entry = vmalloc(sizeof(
struct __vxge_hw_blockpool_entry));
else
list_del(&entry->item);
if (entry != NULL) {
entry->length = size;
entry->memblock = memblock;
entry->dma_addr = dma_object->addr;
entry->acc_handle = dma_object->acc_handle;
entry->dma_handle = dma_object->handle;
list_add(&entry->item,
&blockpool->free_block_list);
blockpool->pool_size++;
status = VXGE_HW_OK;
} else
status = VXGE_HW_ERR_OUT_OF_MEMORY;
if (status == VXGE_HW_OK)
__vxge_hw_blockpool_blocks_remove(blockpool);
}
}
/*
* vxge_hw_mempool_destroy
*/
static void __vxge_hw_mempool_destroy(struct vxge_hw_mempool *mempool)
{
u32 i, j;
struct __vxge_hw_device *devh = mempool->devh;
for (i = 0; i < mempool->memblocks_allocated; i++) {
struct vxge_hw_mempool_dma *dma_object;
vxge_assert(mempool->memblocks_arr[i]);
vxge_assert(mempool->memblocks_dma_arr + i);
dma_object = mempool->memblocks_dma_arr + i;
for (j = 0; j < mempool->items_per_memblock; j++) {
u32 index = i * mempool->items_per_memblock + j;
/* to skip last partially filled(if any) memblock */
if (index >= mempool->items_current)
break;
}
vfree(mempool->memblocks_priv_arr[i]);
__vxge_hw_blockpool_free(devh, mempool->memblocks_arr[i],
mempool->memblock_size, dma_object);
}
vfree(mempool->items_arr);
vfree(mempool->memblocks_dma_arr);
vfree(mempool->memblocks_priv_arr);
vfree(mempool->memblocks_arr);
vfree(mempool);
}
/*
* __vxge_hw_mempool_grow
* Will resize mempool up to %num_allocate value.
*/
static enum vxge_hw_status
__vxge_hw_mempool_grow(struct vxge_hw_mempool *mempool, u32 num_allocate,
u32 *num_allocated)
{
u32 i, first_time = mempool->memblocks_allocated == 0 ? 1 : 0;
u32 n_items = mempool->items_per_memblock;
u32 start_block_idx = mempool->memblocks_allocated;
u32 end_block_idx = mempool->memblocks_allocated + num_allocate;
enum vxge_hw_status status = VXGE_HW_OK;
*num_allocated = 0;
if (end_block_idx > mempool->memblocks_max) {
status = VXGE_HW_ERR_OUT_OF_MEMORY;
goto exit;
}
for (i = start_block_idx; i < end_block_idx; i++) {
u32 j;
u32 is_last = ((end_block_idx - 1) == i);
struct vxge_hw_mempool_dma *dma_object =
mempool->memblocks_dma_arr + i;
void *the_memblock;
/* allocate memblock's private part. Each DMA memblock
* has a space allocated for item's private usage upon
* mempool's user request. Each time mempool grows, it will
* allocate new memblock and its private part at once.
* This helps to minimize memory usage a lot. */
mempool->memblocks_priv_arr[i] =
vzalloc(mempool->items_priv_size * n_items);
if (mempool->memblocks_priv_arr[i] == NULL) {
status = VXGE_HW_ERR_OUT_OF_MEMORY;
goto exit;
}
/* allocate DMA-capable memblock */
mempool->memblocks_arr[i] =
__vxge_hw_blockpool_malloc(mempool->devh,
mempool->memblock_size, dma_object);
if (mempool->memblocks_arr[i] == NULL) {
vfree(mempool->memblocks_priv_arr[i]);
status = VXGE_HW_ERR_OUT_OF_MEMORY;
goto exit;
}
(*num_allocated)++;
mempool->memblocks_allocated++;
memset(mempool->memblocks_arr[i], 0, mempool->memblock_size);
the_memblock = mempool->memblocks_arr[i];
/* fill the items hash array */
for (j = 0; j < n_items; j++) {
u32 index = i * n_items + j;
if (first_time && index >= mempool->items_initial)
break;
mempool->items_arr[index] =
((char *)the_memblock + j*mempool->item_size);
/* let caller to do more job on each item */
if (mempool->item_func_alloc != NULL)
mempool->item_func_alloc(mempool, i,
dma_object, index, is_last);
mempool->items_current = index + 1;
}
if (first_time && mempool->items_current ==
mempool->items_initial)
break;
}
exit:
return status;
}
/*
* vxge_hw_mempool_create
* This function will create memory pool object. Pool may grow but will
* never shrink. Pool consists of number of dynamically allocated blocks
* with size enough to hold %items_initial number of items. Memory is
* DMA-able but client must map/unmap before interoperating with the device.
*/
static struct vxge_hw_mempool *
__vxge_hw_mempool_create(struct __vxge_hw_device *devh,
u32 memblock_size,
u32 item_size,
u32 items_priv_size,
u32 items_initial,
u32 items_max,
struct vxge_hw_mempool_cbs *mp_callback,
void *userdata)
{
enum vxge_hw_status status = VXGE_HW_OK;
u32 memblocks_to_allocate;
struct vxge_hw_mempool *mempool = NULL;
u32 allocated;
if (memblock_size < item_size) {
status = VXGE_HW_FAIL;
goto exit;
}
mempool = vzalloc(sizeof(struct vxge_hw_mempool));
if (mempool == NULL) {
status = VXGE_HW_ERR_OUT_OF_MEMORY;
goto exit;
}
mempool->devh = devh;
mempool->memblock_size = memblock_size;
mempool->items_max = items_max;
mempool->items_initial = items_initial;
mempool->item_size = item_size;
mempool->items_priv_size = items_priv_size;
mempool->item_func_alloc = mp_callback->item_func_alloc;
mempool->userdata = userdata;
mempool->memblocks_allocated = 0;
mempool->items_per_memblock = memblock_size / item_size;
mempool->memblocks_max = (items_max + mempool->items_per_memblock - 1) /
mempool->items_per_memblock;
/* allocate array of memblocks */
mempool->memblocks_arr =
vzalloc(sizeof(void *) * mempool->memblocks_max);
if (mempool->memblocks_arr == NULL) {
__vxge_hw_mempool_destroy(mempool);
status = VXGE_HW_ERR_OUT_OF_MEMORY;
mempool = NULL;
goto exit;
}
/* allocate array of private parts of items per memblocks */
mempool->memblocks_priv_arr =
vzalloc(sizeof(void *) * mempool->memblocks_max);
if (mempool->memblocks_priv_arr == NULL) {
__vxge_hw_mempool_destroy(mempool);
status = VXGE_HW_ERR_OUT_OF_MEMORY;
mempool = NULL;
goto exit;
}
/* allocate array of memblocks DMA objects */
mempool->memblocks_dma_arr =
vzalloc(sizeof(struct vxge_hw_mempool_dma) *
mempool->memblocks_max);
if (mempool->memblocks_dma_arr == NULL) {
__vxge_hw_mempool_destroy(mempool);
status = VXGE_HW_ERR_OUT_OF_MEMORY;
mempool = NULL;
goto exit;
}
/* allocate hash array of items */
mempool->items_arr = vzalloc(sizeof(void *) * mempool->items_max);
if (mempool->items_arr == NULL) {
__vxge_hw_mempool_destroy(mempool);
status = VXGE_HW_ERR_OUT_OF_MEMORY;
mempool = NULL;
goto exit;
}
/* calculate initial number of memblocks */
memblocks_to_allocate = (mempool->items_initial +
mempool->items_per_memblock - 1) /
mempool->items_per_memblock;
/* pre-allocate the mempool */
status = __vxge_hw_mempool_grow(mempool, memblocks_to_allocate,
&allocated);
if (status != VXGE_HW_OK) {
__vxge_hw_mempool_destroy(mempool);
status = VXGE_HW_ERR_OUT_OF_MEMORY;
mempool = NULL;
goto exit;
}
exit:
return mempool;
}
/*
* __vxge_hw_ring_abort - Returns the RxD
* This function terminates the RxDs of ring
*/
static enum vxge_hw_status __vxge_hw_ring_abort(struct __vxge_hw_ring *ring)
{
void *rxdh;
struct __vxge_hw_channel *channel;
channel = &ring->channel;
for (;;) {
vxge_hw_channel_dtr_try_complete(channel, &rxdh);
if (rxdh == NULL)
break;
vxge_hw_channel_dtr_complete(channel);
if (ring->rxd_term)
ring->rxd_term(rxdh, VXGE_HW_RXD_STATE_POSTED,
channel->userdata);
vxge_hw_channel_dtr_free(channel, rxdh);
}
return VXGE_HW_OK;
}
/*
* __vxge_hw_ring_reset - Resets the ring
* This function resets the ring during vpath reset operation
*/
static enum vxge_hw_status __vxge_hw_ring_reset(struct __vxge_hw_ring *ring)
{
enum vxge_hw_status status = VXGE_HW_OK;
struct __vxge_hw_channel *channel;
channel = &ring->channel;
__vxge_hw_ring_abort(ring);
status = __vxge_hw_channel_reset(channel);
if (status != VXGE_HW_OK)
goto exit;
if (ring->rxd_init) {
status = vxge_hw_ring_replenish(ring);
if (status != VXGE_HW_OK)
goto exit;
}
exit:
return status;
}
/*
* __vxge_hw_ring_delete - Removes the ring
* This function freeup the memory pool and removes the ring
*/
static enum vxge_hw_status
__vxge_hw_ring_delete(struct __vxge_hw_vpath_handle *vp)
{
struct __vxge_hw_ring *ring = vp->vpath->ringh;
__vxge_hw_ring_abort(ring);
if (ring->mempool)
__vxge_hw_mempool_destroy(ring->mempool);
vp->vpath->ringh = NULL;
__vxge_hw_channel_free(&ring->channel);
return VXGE_HW_OK;
}
/*
* __vxge_hw_ring_create - Create a Ring
* This function creates Ring and initializes it.
*/
static enum vxge_hw_status
__vxge_hw_ring_create(struct __vxge_hw_vpath_handle *vp,
struct vxge_hw_ring_attr *attr)
{
enum vxge_hw_status status = VXGE_HW_OK;
struct __vxge_hw_ring *ring;
u32 ring_length;
struct vxge_hw_ring_config *config;
struct __vxge_hw_device *hldev;
u32 vp_id;
struct vxge_hw_mempool_cbs ring_mp_callback;
if ((vp == NULL) || (attr == NULL)) {
status = VXGE_HW_FAIL;
goto exit;
}
hldev = vp->vpath->hldev;
vp_id = vp->vpath->vp_id;
config = &hldev->config.vp_config[vp_id].ring;
ring_length = config->ring_blocks *
vxge_hw_ring_rxds_per_block_get(config->buffer_mode);
ring = (struct __vxge_hw_ring *)__vxge_hw_channel_allocate(vp,
VXGE_HW_CHANNEL_TYPE_RING,
ring_length,
attr->per_rxd_space,
attr->userdata);
if (ring == NULL) {
status = VXGE_HW_ERR_OUT_OF_MEMORY;
goto exit;
}
vp->vpath->ringh = ring;
ring->vp_id = vp_id;
ring->vp_reg = vp->vpath->vp_reg;
ring->common_reg = hldev->common_reg;
ring->stats = &vp->vpath->sw_stats->ring_stats;
ring->config = config;
ring->callback = attr->callback;
ring->rxd_init = attr->rxd_init;
ring->rxd_term = attr->rxd_term;
ring->buffer_mode = config->buffer_mode;
ring->tim_rti_cfg1_saved = vp->vpath->tim_rti_cfg1_saved;
ring->tim_rti_cfg3_saved = vp->vpath->tim_rti_cfg3_saved;
ring->rxds_limit = config->rxds_limit;
ring->rxd_size = vxge_hw_ring_rxd_size_get(config->buffer_mode);
ring->rxd_priv_size =
sizeof(struct __vxge_hw_ring_rxd_priv) + attr->per_rxd_space;
ring->per_rxd_space = attr->per_rxd_space;
ring->rxd_priv_size =
((ring->rxd_priv_size + VXGE_CACHE_LINE_SIZE - 1) /
VXGE_CACHE_LINE_SIZE) * VXGE_CACHE_LINE_SIZE;
/* how many RxDs can fit into one block. Depends on configured
* buffer_mode. */
ring->rxds_per_block =
vxge_hw_ring_rxds_per_block_get(config->buffer_mode);
/* calculate actual RxD block private size */
ring->rxdblock_priv_size = ring->rxd_priv_size * ring->rxds_per_block;
ring_mp_callback.item_func_alloc = __vxge_hw_ring_mempool_item_alloc;
ring->mempool = __vxge_hw_mempool_create(hldev,
VXGE_HW_BLOCK_SIZE,
VXGE_HW_BLOCK_SIZE,
ring->rxdblock_priv_size,
ring->config->ring_blocks,
ring->config->ring_blocks,
&ring_mp_callback,
ring);
if (ring->mempool == NULL) {
__vxge_hw_ring_delete(vp);
return VXGE_HW_ERR_OUT_OF_MEMORY;
}
status = __vxge_hw_channel_initialize(&ring->channel);
if (status != VXGE_HW_OK) {
__vxge_hw_ring_delete(vp);
goto exit;
}
/* Note:
* Specifying rxd_init callback means two things:
* 1) rxds need to be initialized by driver at channel-open time;
* 2) rxds need to be posted at channel-open time
* (that's what the initial_replenish() below does)
* Currently we don't have a case when the 1) is done without the 2).
*/
if (ring->rxd_init) {
status = vxge_hw_ring_replenish(ring);
if (status != VXGE_HW_OK) {
__vxge_hw_ring_delete(vp);
goto exit;
}
}
/* initial replenish will increment the counter in its post() routine,
* we have to reset it */
ring->stats->common_stats.usage_cnt = 0;
exit:
return status;
}
/*
* vxge_hw_device_config_default_get - Initialize device config with defaults.
* Initialize Titan device config with default values.
*/
enum vxge_hw_status __devinit
vxge_hw_device_config_default_get(struct vxge_hw_device_config *device_config)
{
u32 i;
device_config->dma_blockpool_initial =
VXGE_HW_INITIAL_DMA_BLOCK_POOL_SIZE;
device_config->dma_blockpool_max = VXGE_HW_MAX_DMA_BLOCK_POOL_SIZE;
device_config->intr_mode = VXGE_HW_INTR_MODE_DEF;
device_config->rth_en = VXGE_HW_RTH_DEFAULT;
device_config->rth_it_type = VXGE_HW_RTH_IT_TYPE_DEFAULT;
device_config->device_poll_millis = VXGE_HW_DEF_DEVICE_POLL_MILLIS;
device_config->rts_mac_en = VXGE_HW_RTS_MAC_DEFAULT;
for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
device_config->vp_config[i].vp_id = i;
device_config->vp_config[i].min_bandwidth =
VXGE_HW_VPATH_BANDWIDTH_DEFAULT;
device_config->vp_config[i].ring.enable = VXGE_HW_RING_DEFAULT;
device_config->vp_config[i].ring.ring_blocks =
VXGE_HW_DEF_RING_BLOCKS;
device_config->vp_config[i].ring.buffer_mode =
VXGE_HW_RING_RXD_BUFFER_MODE_DEFAULT;
device_config->vp_config[i].ring.scatter_mode =
VXGE_HW_RING_SCATTER_MODE_USE_FLASH_DEFAULT;
device_config->vp_config[i].ring.rxds_limit =
VXGE_HW_DEF_RING_RXDS_LIMIT;
device_config->vp_config[i].fifo.enable = VXGE_HW_FIFO_ENABLE;
device_config->vp_config[i].fifo.fifo_blocks =
VXGE_HW_MIN_FIFO_BLOCKS;
device_config->vp_config[i].fifo.max_frags =
VXGE_HW_MAX_FIFO_FRAGS;
device_config->vp_config[i].fifo.memblock_size =
VXGE_HW_DEF_FIFO_MEMBLOCK_SIZE;
device_config->vp_config[i].fifo.alignment_size =
VXGE_HW_DEF_FIFO_ALIGNMENT_SIZE;
device_config->vp_config[i].fifo.intr =
VXGE_HW_FIFO_QUEUE_INTR_DEFAULT;
device_config->vp_config[i].fifo.no_snoop_bits =
VXGE_HW_FIFO_NO_SNOOP_DEFAULT;
device_config->vp_config[i].tti.intr_enable =
VXGE_HW_TIM_INTR_DEFAULT;
device_config->vp_config[i].tti.btimer_val =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].tti.timer_ac_en =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].tti.timer_ci_en =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].tti.timer_ri_en =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].tti.rtimer_val =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].tti.util_sel =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].tti.ltimer_val =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].tti.urange_a =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].tti.uec_a =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].tti.urange_b =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].tti.uec_b =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].tti.urange_c =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].tti.uec_c =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].tti.uec_d =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].rti.intr_enable =
VXGE_HW_TIM_INTR_DEFAULT;
device_config->vp_config[i].rti.btimer_val =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].rti.timer_ac_en =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].rti.timer_ci_en =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].rti.timer_ri_en =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].rti.rtimer_val =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].rti.util_sel =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].rti.ltimer_val =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].rti.urange_a =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].rti.uec_a =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].rti.urange_b =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].rti.uec_b =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].rti.urange_c =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].rti.uec_c =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].rti.uec_d =
VXGE_HW_USE_FLASH_DEFAULT;
device_config->vp_config[i].mtu =
VXGE_HW_VPATH_USE_FLASH_DEFAULT_INITIAL_MTU;
device_config->vp_config[i].rpa_strip_vlan_tag =
VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_USE_FLASH_DEFAULT;
}
return VXGE_HW_OK;
}
/*
* __vxge_hw_vpath_swapper_set - Set the swapper bits for the vpath.
* Set the swapper bits appropriately for the vpath.
*/
static enum vxge_hw_status
__vxge_hw_vpath_swapper_set(struct vxge_hw_vpath_reg __iomem *vpath_reg)
{
#ifndef __BIG_ENDIAN
u64 val64;
val64 = readq(&vpath_reg->vpath_general_cfg1);
wmb();
val64 |= VXGE_HW_VPATH_GENERAL_CFG1_CTL_BYTE_SWAPEN;
writeq(val64, &vpath_reg->vpath_general_cfg1);
wmb();
#endif
return VXGE_HW_OK;
}
/*
* __vxge_hw_kdfc_swapper_set - Set the swapper bits for the kdfc.
* Set the swapper bits appropriately for the vpath.
*/
static enum vxge_hw_status
__vxge_hw_kdfc_swapper_set(struct vxge_hw_legacy_reg __iomem *legacy_reg,
struct vxge_hw_vpath_reg __iomem *vpath_reg)
{
u64 val64;
val64 = readq(&legacy_reg->pifm_wr_swap_en);
if (val64 == VXGE_HW_SWAPPER_WRITE_BYTE_SWAP_ENABLE) {
val64 = readq(&vpath_reg->kdfcctl_cfg0);
wmb();
val64 |= VXGE_HW_KDFCCTL_CFG0_BYTE_SWAPEN_FIFO0 |
VXGE_HW_KDFCCTL_CFG0_BYTE_SWAPEN_FIFO1 |
VXGE_HW_KDFCCTL_CFG0_BYTE_SWAPEN_FIFO2;
writeq(val64, &vpath_reg->kdfcctl_cfg0);
wmb();
}
return VXGE_HW_OK;
}
/*
* vxge_hw_mgmt_reg_read - Read Titan register.
*/
enum vxge_hw_status
vxge_hw_mgmt_reg_read(struct __vxge_hw_device *hldev,
enum vxge_hw_mgmt_reg_type type,
u32 index, u32 offset, u64 *value)
{
enum vxge_hw_status status = VXGE_HW_OK;
if ((hldev == NULL) || (hldev->magic != VXGE_HW_DEVICE_MAGIC)) {
status = VXGE_HW_ERR_INVALID_DEVICE;
goto exit;
}
switch (type) {
case vxge_hw_mgmt_reg_type_legacy:
if (offset > sizeof(struct vxge_hw_legacy_reg) - 8) {
status = VXGE_HW_ERR_INVALID_OFFSET;
break;
}
*value = readq((void __iomem *)hldev->legacy_reg + offset);
break;
case vxge_hw_mgmt_reg_type_toc:
if (offset > sizeof(struct vxge_hw_toc_reg) - 8) {
status = VXGE_HW_ERR_INVALID_OFFSET;
break;
}
*value = readq((void __iomem *)hldev->toc_reg + offset);
break;
case vxge_hw_mgmt_reg_type_common:
if (offset > sizeof(struct vxge_hw_common_reg) - 8) {
status = VXGE_HW_ERR_INVALID_OFFSET;
break;
}
*value = readq((void __iomem *)hldev->common_reg + offset);
break;
case vxge_hw_mgmt_reg_type_mrpcim:
if (!(hldev->access_rights &
VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM)) {
status = VXGE_HW_ERR_PRIVILAGED_OPEARATION;
break;
}
if (offset > sizeof(struct vxge_hw_mrpcim_reg) - 8) {
status = VXGE_HW_ERR_INVALID_OFFSET;
break;
}
*value = readq((void __iomem *)hldev->mrpcim_reg + offset);
break;
case vxge_hw_mgmt_reg_type_srpcim:
if (!(hldev->access_rights &
VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM)) {
status = VXGE_HW_ERR_PRIVILAGED_OPEARATION;
break;
}
if (index > VXGE_HW_TITAN_SRPCIM_REG_SPACES - 1) {
status = VXGE_HW_ERR_INVALID_INDEX;
break;
}
if (offset > sizeof(struct vxge_hw_srpcim_reg) - 8) {
status = VXGE_HW_ERR_INVALID_OFFSET;
break;
}
*value = readq((void __iomem *)hldev->srpcim_reg[index] +
offset);
break;
case vxge_hw_mgmt_reg_type_vpmgmt:
if ((index > VXGE_HW_TITAN_VPMGMT_REG_SPACES - 1) ||
(!(hldev->vpath_assignments & vxge_mBIT(index)))) {
status = VXGE_HW_ERR_INVALID_INDEX;
break;
}
if (offset > sizeof(struct vxge_hw_vpmgmt_reg) - 8) {
status = VXGE_HW_ERR_INVALID_OFFSET;
break;
}
*value = readq((void __iomem *)hldev->vpmgmt_reg[index] +
offset);
break;
case vxge_hw_mgmt_reg_type_vpath:
if ((index > VXGE_HW_TITAN_VPATH_REG_SPACES - 1) ||
(!(hldev->vpath_assignments & vxge_mBIT(index)))) {
status = VXGE_HW_ERR_INVALID_INDEX;
break;
}
if (index > VXGE_HW_TITAN_VPATH_REG_SPACES - 1) {
status = VXGE_HW_ERR_INVALID_INDEX;
break;
}
if (offset > sizeof(struct vxge_hw_vpath_reg) - 8) {
status = VXGE_HW_ERR_INVALID_OFFSET;
break;
}
*value = readq((void __iomem *)hldev->vpath_reg[index] +
offset);
break;
default:
status = VXGE_HW_ERR_INVALID_TYPE;
break;
}
exit:
return status;
}
/*
* vxge_hw_vpath_strip_fcs_check - Check for FCS strip.
*/
enum vxge_hw_status
vxge_hw_vpath_strip_fcs_check(struct __vxge_hw_device *hldev, u64 vpath_mask)
{
struct vxge_hw_vpmgmt_reg __iomem *vpmgmt_reg;
enum vxge_hw_status status = VXGE_HW_OK;
int i = 0, j = 0;
for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
if (!((vpath_mask) & vxge_mBIT(i)))
continue;
vpmgmt_reg = hldev->vpmgmt_reg[i];
for (j = 0; j < VXGE_HW_MAC_MAX_MAC_PORT_ID; j++) {
if (readq(&vpmgmt_reg->rxmac_cfg0_port_vpmgmt_clone[j])
& VXGE_HW_RXMAC_CFG0_PORT_VPMGMT_CLONE_STRIP_FCS)
return VXGE_HW_FAIL;
}
}
return status;
}
/*
* vxge_hw_mgmt_reg_Write - Write Titan register.
*/
enum vxge_hw_status
vxge_hw_mgmt_reg_write(struct __vxge_hw_device *hldev,
enum vxge_hw_mgmt_reg_type type,
u32 index, u32 offset, u64 value)
{
enum vxge_hw_status status = VXGE_HW_OK;
if ((hldev == NULL) || (hldev->magic != VXGE_HW_DEVICE_MAGIC)) {
status = VXGE_HW_ERR_INVALID_DEVICE;
goto exit;
}
switch (type) {
case vxge_hw_mgmt_reg_type_legacy:
if (offset > sizeof(struct vxge_hw_legacy_reg) - 8) {
status = VXGE_HW_ERR_INVALID_OFFSET;
break;
}
writeq(value, (void __iomem *)hldev->legacy_reg + offset);
break;
case vxge_hw_mgmt_reg_type_toc:
if (offset > sizeof(struct vxge_hw_toc_reg) - 8) {
status = VXGE_HW_ERR_INVALID_OFFSET;
break;
}
writeq(value, (void __iomem *)hldev->toc_reg + offset);
break;
case vxge_hw_mgmt_reg_type_common:
if (offset > sizeof(struct vxge_hw_common_reg) - 8) {
status = VXGE_HW_ERR_INVALID_OFFSET;
break;
}
writeq(value, (void __iomem *)hldev->common_reg + offset);
break;
case vxge_hw_mgmt_reg_type_mrpcim:
if (!(hldev->access_rights &
VXGE_HW_DEVICE_ACCESS_RIGHT_MRPCIM)) {
status = VXGE_HW_ERR_PRIVILAGED_OPEARATION;
break;
}
if (offset > sizeof(struct vxge_hw_mrpcim_reg) - 8) {
status = VXGE_HW_ERR_INVALID_OFFSET;
break;
}
writeq(value, (void __iomem *)hldev->mrpcim_reg + offset);
break;
case vxge_hw_mgmt_reg_type_srpcim:
if (!(hldev->access_rights &
VXGE_HW_DEVICE_ACCESS_RIGHT_SRPCIM)) {
status = VXGE_HW_ERR_PRIVILAGED_OPEARATION;
break;
}
if (index > VXGE_HW_TITAN_SRPCIM_REG_SPACES - 1) {
status = VXGE_HW_ERR_INVALID_INDEX;
break;
}
if (offset > sizeof(struct vxge_hw_srpcim_reg) - 8) {
status = VXGE_HW_ERR_INVALID_OFFSET;
break;
}
writeq(value, (void __iomem *)hldev->srpcim_reg[index] +
offset);
break;
case vxge_hw_mgmt_reg_type_vpmgmt:
if ((index > VXGE_HW_TITAN_VPMGMT_REG_SPACES - 1) ||
(!(hldev->vpath_assignments & vxge_mBIT(index)))) {
status = VXGE_HW_ERR_INVALID_INDEX;
break;
}
if (offset > sizeof(struct vxge_hw_vpmgmt_reg) - 8) {
status = VXGE_HW_ERR_INVALID_OFFSET;
break;
}
writeq(value, (void __iomem *)hldev->vpmgmt_reg[index] +
offset);
break;
case vxge_hw_mgmt_reg_type_vpath:
if ((index > VXGE_HW_TITAN_VPATH_REG_SPACES-1) ||
(!(hldev->vpath_assignments & vxge_mBIT(index)))) {
status = VXGE_HW_ERR_INVALID_INDEX;
break;
}
if (offset > sizeof(struct vxge_hw_vpath_reg) - 8) {
status = VXGE_HW_ERR_INVALID_OFFSET;
break;
}
writeq(value, (void __iomem *)hldev->vpath_reg[index] +
offset);
break;
default:
status = VXGE_HW_ERR_INVALID_TYPE;
break;
}
exit:
return status;
}
/*
* __vxge_hw_fifo_abort - Returns the TxD
* This function terminates the TxDs of fifo
*/
static enum vxge_hw_status __vxge_hw_fifo_abort(struct __vxge_hw_fifo *fifo)
{
void *txdlh;
for (;;) {
vxge_hw_channel_dtr_try_complete(&fifo->channel, &txdlh);
if (txdlh == NULL)
break;
vxge_hw_channel_dtr_complete(&fifo->channel);
if (fifo->txdl_term) {
fifo->txdl_term(txdlh,
VXGE_HW_TXDL_STATE_POSTED,
fifo->channel.userdata);
}
vxge_hw_channel_dtr_free(&fifo->channel, txdlh);
}
return VXGE_HW_OK;
}
/*
* __vxge_hw_fifo_reset - Resets the fifo
* This function resets the fifo during vpath reset operation
*/
static enum vxge_hw_status __vxge_hw_fifo_reset(struct __vxge_hw_fifo *fifo)
{
enum vxge_hw_status status = VXGE_HW_OK;
__vxge_hw_fifo_abort(fifo);
status = __vxge_hw_channel_reset(&fifo->channel);
return status;
}
/*
* __vxge_hw_fifo_delete - Removes the FIFO
* This function freeup the memory pool and removes the FIFO
*/
static enum vxge_hw_status
__vxge_hw_fifo_delete(struct __vxge_hw_vpath_handle *vp)
{
struct __vxge_hw_fifo *fifo = vp->vpath->fifoh;
__vxge_hw_fifo_abort(fifo);
if (fifo->mempool)
__vxge_hw_mempool_destroy(fifo->mempool);
vp->vpath->fifoh = NULL;
__vxge_hw_channel_free(&fifo->channel);
return VXGE_HW_OK;
}
/*
* __vxge_hw_fifo_mempool_item_alloc - Allocate List blocks for TxD
* list callback
* This function is callback passed to __vxge_hw_mempool_create to create memory
* pool for TxD list
*/
static void
__vxge_hw_fifo_mempool_item_alloc(
struct vxge_hw_mempool *mempoolh,
u32 memblock_index, struct vxge_hw_mempool_dma *dma_object,
u32 index, u32 is_last)
{
u32 memblock_item_idx;
struct __vxge_hw_fifo_txdl_priv *txdl_priv;
struct vxge_hw_fifo_txd *txdp =
(struct vxge_hw_fifo_txd *)mempoolh->items_arr[index];
struct __vxge_hw_fifo *fifo =
(struct __vxge_hw_fifo *)mempoolh->userdata;
void *memblock = mempoolh->memblocks_arr[memblock_index];
vxge_assert(txdp);
txdp->host_control = (u64) (size_t)
__vxge_hw_mempool_item_priv(mempoolh, memblock_index, txdp,
&memblock_item_idx);
txdl_priv = __vxge_hw_fifo_txdl_priv(fifo, txdp);
vxge_assert(txdl_priv);
fifo->channel.reserve_arr[fifo->channel.reserve_ptr - 1 - index] = txdp;
/* pre-format HW's TxDL's private */
txdl_priv->dma_offset = (char *)txdp - (char *)memblock;
txdl_priv->dma_addr = dma_object->addr + txdl_priv->dma_offset;
txdl_priv->dma_handle = dma_object->handle;
txdl_priv->memblock = memblock;
txdl_priv->first_txdp = txdp;
txdl_priv->next_txdl_priv = NULL;
txdl_priv->alloc_frags = 0;
}
/*
* __vxge_hw_fifo_create - Create a FIFO
* This function creates FIFO and initializes it.
*/
static enum vxge_hw_status
__vxge_hw_fifo_create(struct __vxge_hw_vpath_handle *vp,
struct vxge_hw_fifo_attr *attr)
{
enum vxge_hw_status status = VXGE_HW_OK;
struct __vxge_hw_fifo *fifo;
struct vxge_hw_fifo_config *config;
u32 txdl_size, txdl_per_memblock;
struct vxge_hw_mempool_cbs fifo_mp_callback;
struct __vxge_hw_virtualpath *vpath;
if ((vp == NULL) || (attr == NULL)) {
status = VXGE_HW_ERR_INVALID_HANDLE;
goto exit;
}
vpath = vp->vpath;
config = &vpath->hldev->config.vp_config[vpath->vp_id].fifo;
txdl_size = config->max_frags * sizeof(struct vxge_hw_fifo_txd);
txdl_per_memblock = config->memblock_size / txdl_size;
fifo = (struct __vxge_hw_fifo *)__vxge_hw_channel_allocate(vp,
VXGE_HW_CHANNEL_TYPE_FIFO,
config->fifo_blocks * txdl_per_memblock,
attr->per_txdl_space, attr->userdata);
if (fifo == NULL) {
status = VXGE_HW_ERR_OUT_OF_MEMORY;
goto exit;
}
vpath->fifoh = fifo;
fifo->nofl_db = vpath->nofl_db;
fifo->vp_id = vpath->vp_id;
fifo->vp_reg = vpath->vp_reg;
fifo->stats = &vpath->sw_stats->fifo_stats;
fifo->config = config;
/* apply "interrupts per txdl" attribute */
fifo->interrupt_type = VXGE_HW_FIFO_TXD_INT_TYPE_UTILZ;
fifo->tim_tti_cfg1_saved = vpath->tim_tti_cfg1_saved;
fifo->tim_tti_cfg3_saved = vpath->tim_tti_cfg3_saved;
if (fifo->config->intr)
fifo->interrupt_type = VXGE_HW_FIFO_TXD_INT_TYPE_PER_LIST;
fifo->no_snoop_bits = config->no_snoop_bits;
/*
* FIFO memory management strategy:
*
* TxDL split into three independent parts:
* - set of TxD's
* - TxD HW private part
* - driver private part
*
* Adaptative memory allocation used. i.e. Memory allocated on
* demand with the size which will fit into one memory block.
* One memory block may contain more than one TxDL.
*
* During "reserve" operations more memory can be allocated on demand
* for example due to FIFO full condition.
*
* Pool of memory memblocks never shrinks except in __vxge_hw_fifo_close
* routine which will essentially stop the channel and free resources.
*/
/* TxDL common private size == TxDL private + driver private */
fifo->priv_size =
sizeof(struct __vxge_hw_fifo_txdl_priv) + attr->per_txdl_space;
fifo->priv_size = ((fifo->priv_size + VXGE_CACHE_LINE_SIZE - 1) /
VXGE_CACHE_LINE_SIZE) * VXGE_CACHE_LINE_SIZE;
fifo->per_txdl_space = attr->per_txdl_space;
/* recompute txdl size to be cacheline aligned */
fifo->txdl_size = txdl_size;
fifo->txdl_per_memblock = txdl_per_memblock;
fifo->txdl_term = attr->txdl_term;
fifo->callback = attr->callback;
if (fifo->txdl_per_memblock == 0) {
__vxge_hw_fifo_delete(vp);
status = VXGE_HW_ERR_INVALID_BLOCK_SIZE;
goto exit;
}
fifo_mp_callback.item_func_alloc = __vxge_hw_fifo_mempool_item_alloc;
fifo->mempool =
__vxge_hw_mempool_create(vpath->hldev,
fifo->config->memblock_size,
fifo->txdl_size,
fifo->priv_size,
(fifo->config->fifo_blocks * fifo->txdl_per_memblock),
(fifo->config->fifo_blocks * fifo->txdl_per_memblock),
&fifo_mp_callback,
fifo);
if (fifo->mempool == NULL) {
__vxge_hw_fifo_delete(vp);
status = VXGE_HW_ERR_OUT_OF_MEMORY;
goto exit;
}
status = __vxge_hw_channel_initialize(&fifo->channel);
if (status != VXGE_HW_OK) {
__vxge_hw_fifo_delete(vp);
goto exit;
}
vxge_assert(fifo->channel.reserve_ptr);
exit:
return status;
}
/*
* __vxge_hw_vpath_pci_read - Read the content of given address
* in pci config space.
* Read from the vpath pci config space.
*/
static enum vxge_hw_status
__vxge_hw_vpath_pci_read(struct __vxge_hw_virtualpath *vpath,
u32 phy_func_0, u32 offset, u32 *val)
{
u64 val64;
enum vxge_hw_status status = VXGE_HW_OK;
struct vxge_hw_vpath_reg __iomem *vp_reg = vpath->vp_reg;
val64 = VXGE_HW_PCI_CONFIG_ACCESS_CFG1_ADDRESS(offset);
if (phy_func_0)
val64 |= VXGE_HW_PCI_CONFIG_ACCESS_CFG1_SEL_FUNC0;
writeq(val64, &vp_reg->pci_config_access_cfg1);
wmb();
writeq(VXGE_HW_PCI_CONFIG_ACCESS_CFG2_REQ,
&vp_reg->pci_config_access_cfg2);
wmb();
status = __vxge_hw_device_register_poll(
&vp_reg->pci_config_access_cfg2,
VXGE_HW_INTR_MASK_ALL, VXGE_HW_DEF_DEVICE_POLL_MILLIS);
if (status != VXGE_HW_OK)
goto exit;
val64 = readq(&vp_reg->pci_config_access_status);
if (val64 & VXGE_HW_PCI_CONFIG_ACCESS_STATUS_ACCESS_ERR) {
status = VXGE_HW_FAIL;
*val = 0;
} else
*val = (u32)vxge_bVALn(val64, 32, 32);
exit:
return status;
}
/**
* vxge_hw_device_flick_link_led - Flick (blink) link LED.
* @hldev: HW device.
* @on_off: TRUE if flickering to be on, FALSE to be off
*
* Flicker the link LED.
*/
enum vxge_hw_status
vxge_hw_device_flick_link_led(struct __vxge_hw_device *hldev, u64 on_off)
{
struct __vxge_hw_virtualpath *vpath;
u64 data0, data1 = 0, steer_ctrl = 0;
enum vxge_hw_status status;
if (hldev == NULL) {
status = VXGE_HW_ERR_INVALID_DEVICE;
goto exit;
}
vpath = &hldev->virtual_paths[hldev->first_vp_id];
data0 = on_off;
status = vxge_hw_vpath_fw_api(vpath,
VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_LED_CONTROL,
VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_FW_MEMO,
0, &data0, &data1, &steer_ctrl);
exit:
return status;
}
/*
* __vxge_hw_vpath_rts_table_get - Get the entries from RTS access tables
*/
enum vxge_hw_status
__vxge_hw_vpath_rts_table_get(struct __vxge_hw_vpath_handle *vp,
u32 action, u32 rts_table, u32 offset,
u64 *data0, u64 *data1)
{
enum vxge_hw_status status;
u64 steer_ctrl = 0;
if (vp == NULL) {
status = VXGE_HW_ERR_INVALID_HANDLE;
goto exit;
}
if ((rts_table ==
VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_SOLO_IT) ||
(rts_table ==
VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MULTI_IT) ||
(rts_table ==
VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MASK) ||
(rts_table ==
VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_RTH_KEY)) {
steer_ctrl = VXGE_HW_RTS_ACCESS_STEER_CTRL_TABLE_SEL;
}
status = vxge_hw_vpath_fw_api(vp->vpath, action, rts_table, offset,
data0, data1, &steer_ctrl);
if (status != VXGE_HW_OK)
goto exit;
if ((rts_table != VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA) &&
(rts_table !=
VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MULTI_IT))
*data1 = 0;
exit:
return status;
}
/*
* __vxge_hw_vpath_rts_table_set - Set the entries of RTS access tables
*/
enum vxge_hw_status
__vxge_hw_vpath_rts_table_set(struct __vxge_hw_vpath_handle *vp, u32 action,
u32 rts_table, u32 offset, u64 steer_data0,
u64 steer_data1)
{
u64 data0, data1 = 0, steer_ctrl = 0;
enum vxge_hw_status status;
if (vp == NULL) {
status = VXGE_HW_ERR_INVALID_HANDLE;
goto exit;
}
data0 = steer_data0;
if ((rts_table == VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_DA) ||
(rts_table ==
VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MULTI_IT))
data1 = steer_data1;
status = vxge_hw_vpath_fw_api(vp->vpath, action, rts_table, offset,
&data0, &data1, &steer_ctrl);
exit:
return status;
}
/*
* vxge_hw_vpath_rts_rth_set - Set/configure RTS hashing.
*/
enum vxge_hw_status vxge_hw_vpath_rts_rth_set(
struct __vxge_hw_vpath_handle *vp,
enum vxge_hw_rth_algoritms algorithm,
struct vxge_hw_rth_hash_types *hash_type,
u16 bucket_size)
{
u64 data0, data1;
enum vxge_hw_status status = VXGE_HW_OK;
if (vp == NULL) {
status = VXGE_HW_ERR_INVALID_HANDLE;
goto exit;
}
status = __vxge_hw_vpath_rts_table_get(vp,
VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_READ_ENTRY,
VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_RTH_GEN_CFG,
0, &data0, &data1);
if (status != VXGE_HW_OK)
goto exit;
data0 &= ~(VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_BUCKET_SIZE(0xf) |
VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_ALG_SEL(0x3));
data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_EN |
VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_BUCKET_SIZE(bucket_size) |
VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_ALG_SEL(algorithm);
if (hash_type->hash_type_tcpipv4_en)
data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_TCP_IPV4_EN;
if (hash_type->hash_type_ipv4_en)
data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_IPV4_EN;
if (hash_type->hash_type_tcpipv6_en)
data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_TCP_IPV6_EN;
if (hash_type->hash_type_ipv6_en)
data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_IPV6_EN;
if (hash_type->hash_type_tcpipv6ex_en)
data0 |=
VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_TCP_IPV6_EX_EN;
if (hash_type->hash_type_ipv6ex_en)
data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_RTH_IPV6_EX_EN;
if (VXGE_HW_RTS_ACCESS_STEER_DATA0_GET_RTH_GEN_ACTIVE_TABLE(data0))
data0 &= ~VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_ACTIVE_TABLE;
else
data0 |= VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_GEN_ACTIVE_TABLE;
status = __vxge_hw_vpath_rts_table_set(vp,
VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_WRITE_ENTRY,
VXGE_HW_RTS_ACCESS_STEER_CTRL_DATA_STRUCT_SEL_RTH_GEN_CFG,
0, data0, 0);
exit:
return status;
}
static void
vxge_hw_rts_rth_data0_data1_get(u32 j, u64 *data0, u64 *data1,
u16 flag, u8 *itable)
{
switch (flag) {
case 1:
*data0 = VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM0_BUCKET_NUM(j)|
VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM0_ENTRY_EN |
VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM0_BUCKET_DATA(
itable[j]);
case 2:
*data0 |=
VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM1_BUCKET_NUM(j)|
VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM1_ENTRY_EN |
VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM1_BUCKET_DATA(
itable[j]);
case 3:
*data1 = VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM0_BUCKET_NUM(j)|
VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM0_ENTRY_EN |
VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM0_BUCKET_DATA(
itable[j]);
case 4:
*data1 |=
VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM1_BUCKET_NUM(j)|
VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM1_ENTRY_EN |
VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM1_BUCKET_DATA(
itable[j]);
default:
return;
}
}
/*
* vxge_hw_vpath_rts_rth_itable_set - Set/configure indirection table (IT).
*/
enum vxge_hw_status vxge_hw_vpath_rts_rth_itable_set(
struct __vxge_hw_vpath_handle **vpath_handles,
u32 vpath_count,
u8 *mtable,
u8 *itable,
u32 itable_size)
{
u32 i, j, action, rts_table;
u64 data0;
u64 data1;
u32 max_entries;
enum vxge_hw_status status = VXGE_HW_OK;
struct __vxge_hw_vpath_handle *vp = vpath_handles[0];
if (vp == NULL) {
status = VXGE_HW_ERR_INVALID_HANDLE;
goto exit;
}
max_entries = (((u32)1) << itable_size);
if (vp->vpath->hldev->config.rth_it_type
== VXGE_HW_RTH_IT_TYPE_SOLO_IT) {
action = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_WRITE_ENTRY;
rts_table =
VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_SOLO_IT;
for (j = 0; j < max_entries; j++) {
data1 = 0;
data0 =
VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_SOLO_IT_BUCKET_DATA(
itable[j]);
status = __vxge_hw_vpath_rts_table_set(vpath_handles[0],
action, rts_table, j, data0, data1);
if (status != VXGE_HW_OK)
goto exit;
}
for (j = 0; j < max_entries; j++) {
data1 = 0;
data0 =
VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_SOLO_IT_ENTRY_EN |
VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_SOLO_IT_BUCKET_DATA(
itable[j]);
status = __vxge_hw_vpath_rts_table_set(
vpath_handles[mtable[itable[j]]], action,
rts_table, j, data0, data1);
if (status != VXGE_HW_OK)
goto exit;
}
} else {
action = VXGE_HW_RTS_ACCESS_STEER_CTRL_ACTION_WRITE_ENTRY;
rts_table =
VXGE_HW_RTS_ACS_STEER_CTRL_DATA_STRUCT_SEL_RTH_MULTI_IT;
for (i = 0; i < vpath_count; i++) {
for (j = 0; j < max_entries;) {
data0 = 0;
data1 = 0;
while (j < max_entries) {
if (mtable[itable[j]] != i) {
j++;
continue;
}
vxge_hw_rts_rth_data0_data1_get(j,
&data0, &data1, 1, itable);
j++;
break;
}
while (j < max_entries) {
if (mtable[itable[j]] != i) {
j++;
continue;
}
vxge_hw_rts_rth_data0_data1_get(j,
&data0, &data1, 2, itable);
j++;
break;
}
while (j < max_entries) {
if (mtable[itable[j]] != i) {
j++;
continue;
}
vxge_hw_rts_rth_data0_data1_get(j,
&data0, &data1, 3, itable);
j++;
break;
}
while (j < max_entries) {
if (mtable[itable[j]] != i) {
j++;
continue;
}
vxge_hw_rts_rth_data0_data1_get(j,
&data0, &data1, 4, itable);
j++;
break;
}
if (data0 != 0) {
status = __vxge_hw_vpath_rts_table_set(
vpath_handles[i],
action, rts_table,
0, data0, data1);
if (status != VXGE_HW_OK)
goto exit;
}
}
}
}
exit:
return status;
}
/**
* vxge_hw_vpath_check_leak - Check for memory leak
* @ringh: Handle to the ring object used for receive
*
* If PRC_RXD_DOORBELL_VPn.NEW_QW_CNT is larger or equal to
* PRC_CFG6_VPn.RXD_SPAT then a leak has occurred.
* Returns: VXGE_HW_FAIL, if leak has occurred.
*
*/
enum vxge_hw_status
vxge_hw_vpath_check_leak(struct __vxge_hw_ring *ring)
{
enum vxge_hw_status status = VXGE_HW_OK;
u64 rxd_new_count, rxd_spat;
if (ring == NULL)
return status;
rxd_new_count = readl(&ring->vp_reg->prc_rxd_doorbell);
rxd_spat = readq(&ring->vp_reg->prc_cfg6);
rxd_spat = VXGE_HW_PRC_CFG6_RXD_SPAT(rxd_spat);
if (rxd_new_count >= rxd_spat)
status = VXGE_HW_FAIL;
return status;
}
/*
* __vxge_hw_vpath_mgmt_read
* This routine reads the vpath_mgmt registers
*/
static enum vxge_hw_status
__vxge_hw_vpath_mgmt_read(
struct __vxge_hw_device *hldev,
struct __vxge_hw_virtualpath *vpath)
{
u32 i, mtu = 0, max_pyld = 0;
u64 val64;
enum vxge_hw_status status = VXGE_HW_OK;
for (i = 0; i < VXGE_HW_MAC_MAX_MAC_PORT_ID; i++) {
val64 = readq(&vpath->vpmgmt_reg->
rxmac_cfg0_port_vpmgmt_clone[i]);
max_pyld =
(u32)
VXGE_HW_RXMAC_CFG0_PORT_VPMGMT_CLONE_GET_MAX_PYLD_LEN
(val64);
if (mtu < max_pyld)
mtu = max_pyld;
}
vpath->max_mtu = mtu + VXGE_HW_MAC_HEADER_MAX_SIZE;
val64 = readq(&vpath->vpmgmt_reg->xmac_vsport_choices_vp);
for (i = 0; i < VXGE_HW_MAX_VIRTUAL_PATHS; i++) {
if (val64 & vxge_mBIT(i))
vpath->vsport_number = i;
}
val64 = readq(&vpath->vpmgmt_reg->xgmac_gen_status_vpmgmt_clone);
if (val64 & VXGE_HW_XGMAC_GEN_STATUS_VPMGMT_CLONE_XMACJ_NTWK_OK)
VXGE_HW_DEVICE_LINK_STATE_SET(vpath->hldev, VXGE_HW_LINK_UP);
else
VXGE_HW_DEVICE_LINK_STATE_SET(vpath->hldev, VXGE_HW_LINK_DOWN);
return status;
}
/*
* __vxge_hw_vpath_reset_check - Check if resetting the vpath completed
* This routine checks the vpath_rst_in_prog register to see if
* adapter completed the reset process for the vpath
*/
static enum vxge_hw_status
__vxge_hw_vpath_reset_check(struct __vxge_hw_virtualpath *vpath)
{
enum vxge_hw_status status;
status = __vxge_hw_device_register_poll(
&vpath->hldev->common_reg->vpath_rst_in_prog,
VXGE_HW_VPATH_RST_IN_PROG_VPATH_RST_IN_PROG(
1 << (16 - vpath->vp_id)),
vpath->hldev->config.device_poll_millis);
return status;
}
/*
* __vxge_hw_vpath_reset
* This routine resets the vpath on the device
*/
static enum vxge_hw_status
__vxge_hw_vpath_reset(struct __vxge_hw_device *hldev, u32 vp_id)
{
u64 val64;
enum vxge_hw_status status = VXGE_HW_OK;
val64 = VXGE_HW_CMN_RSTHDLR_CFG0_SW_RESET_VPATH(1 << (16 - vp_id));
__vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn(val64, 0, 32),
&hldev->common_reg->cmn_rsthdlr_cfg0);
return status;
}
/*
* __vxge_hw_vpath_sw_reset
* This routine resets the vpath structures
*/
static enum vxge_hw_status
__vxge_hw_vpath_sw_reset(struct __vxge_hw_device *hldev, u32 vp_id)
{
enum vxge_hw_status status = VXGE_HW_OK;
struct __vxge_hw_virtualpath *vpath;
vpath = (struct __vxge_hw_virtualpath *)&hldev->virtual_paths[vp_id];
if (vpath->ringh) {
status = __vxge_hw_ring_reset(vpath->ringh);
if (status != VXGE_HW_OK)
goto exit;
}
if (vpath->fifoh)
status = __vxge_hw_fifo_reset(vpath->fifoh);
exit:
return status;
}
/*
* __vxge_hw_vpath_prc_configure
* This routine configures the prc registers of virtual path using the config
* passed
*/
static void
__vxge_hw_vpath_prc_configure(struct __vxge_hw_device *hldev, u32 vp_id)
{
u64 val64;
struct __vxge_hw_virtualpath *vpath;
struct vxge_hw_vp_config *vp_config;
struct vxge_hw_vpath_reg __iomem *vp_reg;
vpath = &hldev->virtual_paths[vp_id];
vp_reg = vpath->vp_reg;
vp_config = vpath->vp_config;
if (vp_config->ring.enable == VXGE_HW_RING_DISABLE)
return;
val64 = readq(&vp_reg->prc_cfg1);
val64 |= VXGE_HW_PRC_CFG1_RTI_TINT_DISABLE;
writeq(val64, &vp_reg->prc_cfg1);
val64 = readq(&vpath->vp_reg->prc_cfg6);
val64 |= VXGE_HW_PRC_CFG6_DOORBELL_MODE_EN;
writeq(val64, &vpath->vp_reg->prc_cfg6);
val64 = readq(&vp_reg->prc_cfg7);
if (vpath->vp_config->ring.scatter_mode !=
VXGE_HW_RING_SCATTER_MODE_USE_FLASH_DEFAULT) {
val64 &= ~VXGE_HW_PRC_CFG7_SCATTER_MODE(0x3);
switch (vpath->vp_config->ring.scatter_mode) {
case VXGE_HW_RING_SCATTER_MODE_A:
val64 |= VXGE_HW_PRC_CFG7_SCATTER_MODE(
VXGE_HW_PRC_CFG7_SCATTER_MODE_A);
break;
case VXGE_HW_RING_SCATTER_MODE_B:
val64 |= VXGE_HW_PRC_CFG7_SCATTER_MODE(
VXGE_HW_PRC_CFG7_SCATTER_MODE_B);
break;
case VXGE_HW_RING_SCATTER_MODE_C:
val64 |= VXGE_HW_PRC_CFG7_SCATTER_MODE(
VXGE_HW_PRC_CFG7_SCATTER_MODE_C);
break;
}
}
writeq(val64, &vp_reg->prc_cfg7);
writeq(VXGE_HW_PRC_CFG5_RXD0_ADD(
__vxge_hw_ring_first_block_address_get(
vpath->ringh) >> 3), &vp_reg->prc_cfg5);
val64 = readq(&vp_reg->prc_cfg4);
val64 |= VXGE_HW_PRC_CFG4_IN_SVC;
val64 &= ~VXGE_HW_PRC_CFG4_RING_MODE(0x3);
val64 |= VXGE_HW_PRC_CFG4_RING_MODE(
VXGE_HW_PRC_CFG4_RING_MODE_ONE_BUFFER);
if (hldev->config.rth_en == VXGE_HW_RTH_DISABLE)
val64 |= VXGE_HW_PRC_CFG4_RTH_DISABLE;
else
val64 &= ~VXGE_HW_PRC_CFG4_RTH_DISABLE;
writeq(val64, &vp_reg->prc_cfg4);
}
/*
* __vxge_hw_vpath_kdfc_configure
* This routine configures the kdfc registers of virtual path using the
* config passed
*/
static enum vxge_hw_status
__vxge_hw_vpath_kdfc_configure(struct __vxge_hw_device *hldev, u32 vp_id)
{
u64 val64;
u64 vpath_stride;
enum vxge_hw_status status = VXGE_HW_OK;
struct __vxge_hw_virtualpath *vpath;
struct vxge_hw_vpath_reg __iomem *vp_reg;
vpath = &hldev->virtual_paths[vp_id];
vp_reg = vpath->vp_reg;
status = __vxge_hw_kdfc_swapper_set(hldev->legacy_reg, vp_reg);
if (status != VXGE_HW_OK)
goto exit;
val64 = readq(&vp_reg->kdfc_drbl_triplet_total);
vpath->max_kdfc_db =
(u32)VXGE_HW_KDFC_DRBL_TRIPLET_TOTAL_GET_KDFC_MAX_SIZE(
val64+1)/2;
if (vpath->vp_config->fifo.enable == VXGE_HW_FIFO_ENABLE) {
vpath->max_nofl_db = vpath->max_kdfc_db;
if (vpath->max_nofl_db <
((vpath->vp_config->fifo.memblock_size /
(vpath->vp_config->fifo.max_frags *
sizeof(struct vxge_hw_fifo_txd))) *
vpath->vp_config->fifo.fifo_blocks)) {
return VXGE_HW_BADCFG_FIFO_BLOCKS;
}
val64 = VXGE_HW_KDFC_FIFO_TRPL_PARTITION_LENGTH_0(
(vpath->max_nofl_db*2)-1);
}
writeq(val64, &vp_reg->kdfc_fifo_trpl_partition);
writeq(VXGE_HW_KDFC_FIFO_TRPL_CTRL_TRIPLET_ENABLE,
&vp_reg->kdfc_fifo_trpl_ctrl);
val64 = readq(&vp_reg->kdfc_trpl_fifo_0_ctrl);
val64 &= ~(VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_MODE(0x3) |
VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_SELECT(0xFF));
val64 |= VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_MODE(
VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_MODE_NON_OFFLOAD_ONLY) |
#ifndef __BIG_ENDIAN
VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_SWAP_EN |
#endif
VXGE_HW_KDFC_TRPL_FIFO_0_CTRL_SELECT(0);
writeq(val64, &vp_reg->kdfc_trpl_fifo_0_ctrl);
writeq((u64)0, &vp_reg->kdfc_trpl_fifo_0_wb_address);
wmb();
vpath_stride = readq(&hldev->toc_reg->toc_kdfc_vpath_stride);
vpath->nofl_db =
(struct __vxge_hw_non_offload_db_wrapper __iomem *)
(hldev->kdfc + (vp_id *
VXGE_HW_TOC_KDFC_VPATH_STRIDE_GET_TOC_KDFC_VPATH_STRIDE(
vpath_stride)));
exit:
return status;
}
/*
* __vxge_hw_vpath_mac_configure
* This routine configures the mac of virtual path using the config passed
*/
static enum vxge_hw_status
__vxge_hw_vpath_mac_configure(struct __vxge_hw_device *hldev, u32 vp_id)
{
u64 val64;
enum vxge_hw_status status = VXGE_HW_OK;
struct __vxge_hw_virtualpath *vpath;
struct vxge_hw_vp_config *vp_config;
struct vxge_hw_vpath_reg __iomem *vp_reg;
vpath = &hldev->virtual_paths[vp_id];
vp_reg = vpath->vp_reg;
vp_config = vpath->vp_config;
writeq(VXGE_HW_XMAC_VSPORT_CHOICE_VSPORT_NUMBER(
vpath->vsport_number), &vp_reg->xmac_vsport_choice);
if (vp_config->ring.enable == VXGE_HW_RING_ENABLE) {
val64 = readq(&vp_reg->xmac_rpa_vcfg);
if (vp_config->rpa_strip_vlan_tag !=
VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_USE_FLASH_DEFAULT) {
if (vp_config->rpa_strip_vlan_tag)
val64 |= VXGE_HW_XMAC_RPA_VCFG_STRIP_VLAN_TAG;
else
val64 &= ~VXGE_HW_XMAC_RPA_VCFG_STRIP_VLAN_TAG;
}
writeq(val64, &vp_reg->xmac_rpa_vcfg);
val64 = readq(&vp_reg->rxmac_vcfg0);
if (vp_config->mtu !=
VXGE_HW_VPATH_USE_FLASH_DEFAULT_INITIAL_MTU) {
val64 &= ~VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(0x3fff);
if ((vp_config->mtu +
VXGE_HW_MAC_HEADER_MAX_SIZE) < vpath->max_mtu)
val64 |= VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(
vp_config->mtu +
VXGE_HW_MAC_HEADER_MAX_SIZE);
else
val64 |= VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(
vpath->max_mtu);
}
writeq(val64, &vp_reg->rxmac_vcfg0);
val64 = readq(&vp_reg->rxmac_vcfg1);
val64 &= ~(VXGE_HW_RXMAC_VCFG1_RTS_RTH_MULTI_IT_BD_MODE(0x3) |
VXGE_HW_RXMAC_VCFG1_RTS_RTH_MULTI_IT_EN_MODE);
if (hldev->config.rth_it_type ==
VXGE_HW_RTH_IT_TYPE_MULTI_IT) {
val64 |= VXGE_HW_RXMAC_VCFG1_RTS_RTH_MULTI_IT_BD_MODE(
0x2) |
VXGE_HW_RXMAC_VCFG1_RTS_RTH_MULTI_IT_EN_MODE;
}
writeq(val64, &vp_reg->rxmac_vcfg1);
}
return status;
}
/*
* __vxge_hw_vpath_tim_configure
* This routine configures the tim registers of virtual path using the config
* passed
*/
static enum vxge_hw_status
__vxge_hw_vpath_tim_configure(struct __vxge_hw_device *hldev, u32 vp_id)
{
u64 val64;
enum vxge_hw_status status = VXGE_HW_OK;
struct __vxge_hw_virtualpath *vpath;
struct vxge_hw_vpath_reg __iomem *vp_reg;
struct vxge_hw_vp_config *config;
vpath = &hldev->virtual_paths[vp_id];
vp_reg = vpath->vp_reg;
config = vpath->vp_config;
writeq(0, &vp_reg->tim_dest_addr);
writeq(0, &vp_reg->tim_vpath_map);
writeq(0, &vp_reg->tim_bitmap);
writeq(0, &vp_reg->tim_remap);
if (config->ring.enable == VXGE_HW_RING_ENABLE)
writeq(VXGE_HW_TIM_RING_ASSN_INT_NUM(
(vp_id * VXGE_HW_MAX_INTR_PER_VP) +
VXGE_HW_VPATH_INTR_RX), &vp_reg->tim_ring_assn);
val64 = readq(&vp_reg->tim_pci_cfg);
val64 |= VXGE_HW_TIM_PCI_CFG_ADD_PAD;
writeq(val64, &vp_reg->tim_pci_cfg);
if (config->fifo.enable == VXGE_HW_FIFO_ENABLE) {
val64 = readq(&vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_TX]);
if (config->tti.btimer_val != VXGE_HW_USE_FLASH_DEFAULT) {
val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_BTIMER_VAL(
0x3ffffff);
val64 |= VXGE_HW_TIM_CFG1_INT_NUM_BTIMER_VAL(
config->tti.btimer_val);
}
val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_BITMP_EN;
if (config->tti.timer_ac_en != VXGE_HW_USE_FLASH_DEFAULT) {
if (config->tti.timer_ac_en)
val64 |= VXGE_HW_TIM_CFG1_INT_NUM_TIMER_AC;
else
val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_TIMER_AC;
}
if (config->tti.timer_ci_en != VXGE_HW_USE_FLASH_DEFAULT) {
if (config->tti.timer_ci_en)
val64 |= VXGE_HW_TIM_CFG1_INT_NUM_TIMER_CI;
else
val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_TIMER_CI;
}
if (config->tti.urange_a != VXGE_HW_USE_FLASH_DEFAULT) {
val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_A(0x3f);
val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_A(
config->tti.urange_a);
}
if (config->tti.urange_b != VXGE_HW_USE_FLASH_DEFAULT) {
val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_B(0x3f);
val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_B(
config->tti.urange_b);
}
if (config->tti.urange_c != VXGE_HW_USE_FLASH_DEFAULT) {
val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_C(0x3f);
val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_C(
config->tti.urange_c);
}
writeq(val64, &vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_TX]);
vpath->tim_tti_cfg1_saved = val64;
val64 = readq(&vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_TX]);
if (config->tti.uec_a != VXGE_HW_USE_FLASH_DEFAULT) {
val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_A(0xffff);
val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_A(
config->tti.uec_a);
}
if (config->tti.uec_b != VXGE_HW_USE_FLASH_DEFAULT) {
val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_B(0xffff);
val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_B(
config->tti.uec_b);
}
if (config->tti.uec_c != VXGE_HW_USE_FLASH_DEFAULT) {
val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_C(0xffff);
val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_C(
config->tti.uec_c);
}
if (config->tti.uec_d != VXGE_HW_USE_FLASH_DEFAULT) {
val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_D(0xffff);
val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_D(
config->tti.uec_d);
}
writeq(val64, &vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_TX]);
val64 = readq(&vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_TX]);
if (config->tti.timer_ri_en != VXGE_HW_USE_FLASH_DEFAULT) {
if (config->tti.timer_ri_en)
val64 |= VXGE_HW_TIM_CFG3_INT_NUM_TIMER_RI;
else
val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_TIMER_RI;
}
if (config->tti.rtimer_val != VXGE_HW_USE_FLASH_DEFAULT) {
val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_VAL(
0x3ffffff);
val64 |= VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_VAL(
config->tti.rtimer_val);
}
if (config->tti.util_sel != VXGE_HW_USE_FLASH_DEFAULT) {
val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_UTIL_SEL(0x3f);
val64 |= VXGE_HW_TIM_CFG3_INT_NUM_UTIL_SEL(vp_id);
}
if (config->tti.ltimer_val != VXGE_HW_USE_FLASH_DEFAULT) {
val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_LTIMER_VAL(
0x3ffffff);
val64 |= VXGE_HW_TIM_CFG3_INT_NUM_LTIMER_VAL(
config->tti.ltimer_val);
}
writeq(val64, &vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_TX]);
vpath->tim_tti_cfg3_saved = val64;
}
if (config->ring.enable == VXGE_HW_RING_ENABLE) {
val64 = readq(&vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_RX]);
if (config->rti.btimer_val != VXGE_HW_USE_FLASH_DEFAULT) {
val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_BTIMER_VAL(
0x3ffffff);
val64 |= VXGE_HW_TIM_CFG1_INT_NUM_BTIMER_VAL(
config->rti.btimer_val);
}
val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_BITMP_EN;
if (config->rti.timer_ac_en != VXGE_HW_USE_FLASH_DEFAULT) {
if (config->rti.timer_ac_en)
val64 |= VXGE_HW_TIM_CFG1_INT_NUM_TIMER_AC;
else
val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_TIMER_AC;
}
if (config->rti.timer_ci_en != VXGE_HW_USE_FLASH_DEFAULT) {
if (config->rti.timer_ci_en)
val64 |= VXGE_HW_TIM_CFG1_INT_NUM_TIMER_CI;
else
val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_TIMER_CI;
}
if (config->rti.urange_a != VXGE_HW_USE_FLASH_DEFAULT) {
val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_A(0x3f);
val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_A(
config->rti.urange_a);
}
if (config->rti.urange_b != VXGE_HW_USE_FLASH_DEFAULT) {
val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_B(0x3f);
val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_B(
config->rti.urange_b);
}
if (config->rti.urange_c != VXGE_HW_USE_FLASH_DEFAULT) {
val64 &= ~VXGE_HW_TIM_CFG1_INT_NUM_URNG_C(0x3f);
val64 |= VXGE_HW_TIM_CFG1_INT_NUM_URNG_C(
config->rti.urange_c);
}
writeq(val64, &vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_RX]);
vpath->tim_rti_cfg1_saved = val64;
val64 = readq(&vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_RX]);
if (config->rti.uec_a != VXGE_HW_USE_FLASH_DEFAULT) {
val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_A(0xffff);
val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_A(
config->rti.uec_a);
}
if (config->rti.uec_b != VXGE_HW_USE_FLASH_DEFAULT) {
val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_B(0xffff);
val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_B(
config->rti.uec_b);
}
if (config->rti.uec_c != VXGE_HW_USE_FLASH_DEFAULT) {
val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_C(0xffff);
val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_C(
config->rti.uec_c);
}
if (config->rti.uec_d != VXGE_HW_USE_FLASH_DEFAULT) {
val64 &= ~VXGE_HW_TIM_CFG2_INT_NUM_UEC_D(0xffff);
val64 |= VXGE_HW_TIM_CFG2_INT_NUM_UEC_D(
config->rti.uec_d);
}
writeq(val64, &vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_RX]);
val64 = readq(&vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_RX]);
if (config->rti.timer_ri_en != VXGE_HW_USE_FLASH_DEFAULT) {
if (config->rti.timer_ri_en)
val64 |= VXGE_HW_TIM_CFG3_INT_NUM_TIMER_RI;
else
val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_TIMER_RI;
}
if (config->rti.rtimer_val != VXGE_HW_USE_FLASH_DEFAULT) {
val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_VAL(
0x3ffffff);
val64 |= VXGE_HW_TIM_CFG3_INT_NUM_RTIMER_VAL(
config->rti.rtimer_val);
}
if (config->rti.util_sel != VXGE_HW_USE_FLASH_DEFAULT) {
val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_UTIL_SEL(0x3f);
val64 |= VXGE_HW_TIM_CFG3_INT_NUM_UTIL_SEL(vp_id);
}
if (config->rti.ltimer_val != VXGE_HW_USE_FLASH_DEFAULT) {
val64 &= ~VXGE_HW_TIM_CFG3_INT_NUM_LTIMER_VAL(
0x3ffffff);
val64 |= VXGE_HW_TIM_CFG3_INT_NUM_LTIMER_VAL(
config->rti.ltimer_val);
}
writeq(val64, &vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_RX]);
vpath->tim_rti_cfg3_saved = val64;
}
val64 = 0;
writeq(val64, &vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_EINTA]);
writeq(val64, &vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_EINTA]);
writeq(val64, &vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_EINTA]);
writeq(val64, &vp_reg->tim_cfg1_int_num[VXGE_HW_VPATH_INTR_BMAP]);
writeq(val64, &vp_reg->tim_cfg2_int_num[VXGE_HW_VPATH_INTR_BMAP]);
writeq(val64, &vp_reg->tim_cfg3_int_num[VXGE_HW_VPATH_INTR_BMAP]);
val64 = VXGE_HW_TIM_WRKLD_CLC_WRKLD_EVAL_PRD(150);
val64 |= VXGE_HW_TIM_WRKLD_CLC_WRKLD_EVAL_DIV(0);
val64 |= VXGE_HW_TIM_WRKLD_CLC_CNT_RX_TX(3);
writeq(val64, &vp_reg->tim_wrkld_clc);
return status;
}
/*
* __vxge_hw_vpath_initialize
* This routine is the final phase of init which initializes the
* registers of the vpath using the configuration passed.
*/
static enum vxge_hw_status
__vxge_hw_vpath_initialize(struct __vxge_hw_device *hldev, u32 vp_id)
{
u64 val64;
u32 val32;
enum vxge_hw_status status = VXGE_HW_OK;
struct __vxge_hw_virtualpath *vpath;
struct vxge_hw_vpath_reg __iomem *vp_reg;
vpath = &hldev->virtual_paths[vp_id];
if (!(hldev->vpath_assignments & vxge_mBIT(vp_id))) {
status = VXGE_HW_ERR_VPATH_NOT_AVAILABLE;
goto exit;
}
vp_reg = vpath->vp_reg;
status = __vxge_hw_vpath_swapper_set(vpath->vp_reg);
if (status != VXGE_HW_OK)
goto exit;
status = __vxge_hw_vpath_mac_configure(hldev, vp_id);
if (status != VXGE_HW_OK)
goto exit;
status = __vxge_hw_vpath_kdfc_configure(hldev, vp_id);
if (status != VXGE_HW_OK)
goto exit;
status = __vxge_hw_vpath_tim_configure(hldev, vp_id);
if (status != VXGE_HW_OK)
goto exit;
val64 = readq(&vp_reg->rtdma_rd_optimization_ctrl);
/* Get MRRS value from device control */
status = __vxge_hw_vpath_pci_read(vpath, 1, 0x78, &val32);
if (status == VXGE_HW_OK) {
val32 = (val32 & VXGE_HW_PCI_EXP_DEVCTL_READRQ) >> 12;
val64 &=
~(VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_FILL_THRESH(7));
val64 |=
VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_FILL_THRESH(val32);
val64 |= VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_WAIT_FOR_SPACE;
}
val64 &= ~(VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_ADDR_BDRY(7));
val64 |=
VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_ADDR_BDRY(
VXGE_HW_MAX_PAYLOAD_SIZE_512);
val64 |= VXGE_HW_RTDMA_RD_OPTIMIZATION_CTRL_FB_ADDR_BDRY_EN;
writeq(val64, &vp_reg->rtdma_rd_optimization_ctrl);
exit:
return status;
}
/*
* __vxge_hw_vp_terminate - Terminate Virtual Path structure
* This routine closes all channels it opened and freeup memory
*/
static void __vxge_hw_vp_terminate(struct __vxge_hw_device *hldev, u32 vp_id)
{
struct __vxge_hw_virtualpath *vpath;
vpath = &hldev->virtual_paths[vp_id];
if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN)
goto exit;
VXGE_HW_DEVICE_TIM_INT_MASK_RESET(vpath->hldev->tim_int_mask0,
vpath->hldev->tim_int_mask1, vpath->vp_id);
hldev->stats.hw_dev_info_stats.vpath_info[vpath->vp_id] = NULL;
/* If the whole struct __vxge_hw_virtualpath is zeroed, nothing will
* work after the interface is brought down.
*/
spin_lock(&vpath->lock);
vpath->vp_open = VXGE_HW_VP_NOT_OPEN;
spin_unlock(&vpath->lock);
vpath->vpmgmt_reg = NULL;
vpath->nofl_db = NULL;
vpath->max_mtu = 0;
vpath->vsport_number = 0;
vpath->max_kdfc_db = 0;
vpath->max_nofl_db = 0;
vpath->ringh = NULL;
vpath->fifoh = NULL;
memset(&vpath->vpath_handles, 0, sizeof(struct list_head));
vpath->stats_block = 0;
vpath->hw_stats = NULL;
vpath->hw_stats_sav = NULL;
vpath->sw_stats = NULL;
exit:
return;
}
/*
* __vxge_hw_vp_initialize - Initialize Virtual Path structure
* This routine is the initial phase of init which resets the vpath and
* initializes the software support structures.
*/
static enum vxge_hw_status
__vxge_hw_vp_initialize(struct __vxge_hw_device *hldev, u32 vp_id,
struct vxge_hw_vp_config *config)
{
struct __vxge_hw_virtualpath *vpath;
enum vxge_hw_status status = VXGE_HW_OK;
if (!(hldev->vpath_assignments & vxge_mBIT(vp_id))) {
status = VXGE_HW_ERR_VPATH_NOT_AVAILABLE;
goto exit;
}
vpath = &hldev->virtual_paths[vp_id];
spin_lock_init(&vpath->lock);
vpath->vp_id = vp_id;
vpath->vp_open = VXGE_HW_VP_OPEN;
vpath->hldev = hldev;
vpath->vp_config = config;
vpath->vp_reg = hldev->vpath_reg[vp_id];
vpath->vpmgmt_reg = hldev->vpmgmt_reg[vp_id];
__vxge_hw_vpath_reset(hldev, vp_id);
status = __vxge_hw_vpath_reset_check(vpath);
if (status != VXGE_HW_OK) {
memset(vpath, 0, sizeof(struct __vxge_hw_virtualpath));
goto exit;
}
status = __vxge_hw_vpath_mgmt_read(hldev, vpath);
if (status != VXGE_HW_OK) {
memset(vpath, 0, sizeof(struct __vxge_hw_virtualpath));
goto exit;
}
INIT_LIST_HEAD(&vpath->vpath_handles);
vpath->sw_stats = &hldev->stats.sw_dev_info_stats.vpath_info[vp_id];
VXGE_HW_DEVICE_TIM_INT_MASK_SET(hldev->tim_int_mask0,
hldev->tim_int_mask1, vp_id);
status = __vxge_hw_vpath_initialize(hldev, vp_id);
if (status != VXGE_HW_OK)
__vxge_hw_vp_terminate(hldev, vp_id);
exit:
return status;
}
/*
* vxge_hw_vpath_mtu_set - Set MTU.
* Set new MTU value. Example, to use jumbo frames:
* vxge_hw_vpath_mtu_set(my_device, 9600);
*/
enum vxge_hw_status
vxge_hw_vpath_mtu_set(struct __vxge_hw_vpath_handle *vp, u32 new_mtu)
{
u64 val64;
enum vxge_hw_status status = VXGE_HW_OK;
struct __vxge_hw_virtualpath *vpath;
if (vp == NULL) {
status = VXGE_HW_ERR_INVALID_HANDLE;
goto exit;
}
vpath = vp->vpath;
new_mtu += VXGE_HW_MAC_HEADER_MAX_SIZE;
if ((new_mtu < VXGE_HW_MIN_MTU) || (new_mtu > vpath->max_mtu))
status = VXGE_HW_ERR_INVALID_MTU_SIZE;
val64 = readq(&vpath->vp_reg->rxmac_vcfg0);
val64 &= ~VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(0x3fff);
val64 |= VXGE_HW_RXMAC_VCFG0_RTS_MAX_FRM_LEN(new_mtu);
writeq(val64, &vpath->vp_reg->rxmac_vcfg0);
vpath->vp_config->mtu = new_mtu - VXGE_HW_MAC_HEADER_MAX_SIZE;
exit:
return status;
}
/*
* vxge_hw_vpath_stats_enable - Enable vpath h/wstatistics.
* Enable the DMA vpath statistics. The function is to be called to re-enable
* the adapter to update stats into the host memory
*/
static enum vxge_hw_status
vxge_hw_vpath_stats_enable(struct __vxge_hw_vpath_handle *vp)
{
enum vxge_hw_status status = VXGE_HW_OK;
struct __vxge_hw_virtualpath *vpath;
vpath = vp->vpath;
if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
status = VXGE_HW_ERR_VPATH_NOT_OPEN;
goto exit;
}
memcpy(vpath->hw_stats_sav, vpath->hw_stats,
sizeof(struct vxge_hw_vpath_stats_hw_info));
status = __vxge_hw_vpath_stats_get(vpath, vpath->hw_stats);
exit:
return status;
}
/*
* __vxge_hw_blockpool_block_allocate - Allocates a block from block pool
* This function allocates a block from block pool or from the system
*/
static struct __vxge_hw_blockpool_entry *
__vxge_hw_blockpool_block_allocate(struct __vxge_hw_device *devh, u32 size)
{
struct __vxge_hw_blockpool_entry *entry = NULL;
struct __vxge_hw_blockpool *blockpool;
blockpool = &devh->block_pool;
if (size == blockpool->block_size) {
if (!list_empty(&blockpool->free_block_list))
entry = (struct __vxge_hw_blockpool_entry *)
list_first_entry(&blockpool->free_block_list,
struct __vxge_hw_blockpool_entry,
item);
if (entry != NULL) {
list_del(&entry->item);
blockpool->pool_size--;
}
}
if (entry != NULL)
__vxge_hw_blockpool_blocks_add(blockpool);
return entry;
}
/*
* vxge_hw_vpath_open - Open a virtual path on a given adapter
* This function is used to open access to virtual path of an
* adapter for offload, GRO operations. This function returns
* synchronously.
*/
enum vxge_hw_status
vxge_hw_vpath_open(struct __vxge_hw_device *hldev,
struct vxge_hw_vpath_attr *attr,
struct __vxge_hw_vpath_handle **vpath_handle)
{
struct __vxge_hw_virtualpath *vpath;
struct __vxge_hw_vpath_handle *vp;
enum vxge_hw_status status;
vpath = &hldev->virtual_paths[attr->vp_id];
if (vpath->vp_open == VXGE_HW_VP_OPEN) {
status = VXGE_HW_ERR_INVALID_STATE;
goto vpath_open_exit1;
}
status = __vxge_hw_vp_initialize(hldev, attr->vp_id,
&hldev->config.vp_config[attr->vp_id]);
if (status != VXGE_HW_OK)
goto vpath_open_exit1;
vp = vzalloc(sizeof(struct __vxge_hw_vpath_handle));
if (vp == NULL) {
status = VXGE_HW_ERR_OUT_OF_MEMORY;
goto vpath_open_exit2;
}
vp->vpath = vpath;
if (vpath->vp_config->fifo.enable == VXGE_HW_FIFO_ENABLE) {
status = __vxge_hw_fifo_create(vp, &attr->fifo_attr);
if (status != VXGE_HW_OK)
goto vpath_open_exit6;
}
if (vpath->vp_config->ring.enable == VXGE_HW_RING_ENABLE) {
status = __vxge_hw_ring_create(vp, &attr->ring_attr);
if (status != VXGE_HW_OK)
goto vpath_open_exit7;
__vxge_hw_vpath_prc_configure(hldev, attr->vp_id);
}
vpath->fifoh->tx_intr_num =
(attr->vp_id * VXGE_HW_MAX_INTR_PER_VP) +
VXGE_HW_VPATH_INTR_TX;
vpath->stats_block = __vxge_hw_blockpool_block_allocate(hldev,
VXGE_HW_BLOCK_SIZE);
if (vpath->stats_block == NULL) {
status = VXGE_HW_ERR_OUT_OF_MEMORY;
goto vpath_open_exit8;
}
vpath->hw_stats = (struct vxge_hw_vpath_stats_hw_info *)vpath->
stats_block->memblock;
memset(vpath->hw_stats, 0,
sizeof(struct vxge_hw_vpath_stats_hw_info));
hldev->stats.hw_dev_info_stats.vpath_info[attr->vp_id] =
vpath->hw_stats;
vpath->hw_stats_sav =
&hldev->stats.hw_dev_info_stats.vpath_info_sav[attr->vp_id];
memset(vpath->hw_stats_sav, 0,
sizeof(struct vxge_hw_vpath_stats_hw_info));
writeq(vpath->stats_block->dma_addr, &vpath->vp_reg->stats_cfg);
status = vxge_hw_vpath_stats_enable(vp);
if (status != VXGE_HW_OK)
goto vpath_open_exit8;
list_add(&vp->item, &vpath->vpath_handles);
hldev->vpaths_deployed |= vxge_mBIT(vpath->vp_id);
*vpath_handle = vp;
attr->fifo_attr.userdata = vpath->fifoh;
attr->ring_attr.userdata = vpath->ringh;
return VXGE_HW_OK;
vpath_open_exit8:
if (vpath->ringh != NULL)
__vxge_hw_ring_delete(vp);
vpath_open_exit7:
if (vpath->fifoh != NULL)
__vxge_hw_fifo_delete(vp);
vpath_open_exit6:
vfree(vp);
vpath_open_exit2:
__vxge_hw_vp_terminate(hldev, attr->vp_id);
vpath_open_exit1:
return status;
}
/**
* vxge_hw_vpath_rx_doorbell_post - Close the handle got from previous vpath
* (vpath) open
* @vp: Handle got from previous vpath open
*
* This function is used to close access to virtual path opened
* earlier.
*/
void vxge_hw_vpath_rx_doorbell_init(struct __vxge_hw_vpath_handle *vp)
{
struct __vxge_hw_virtualpath *vpath = vp->vpath;
struct __vxge_hw_ring *ring = vpath->ringh;
struct vxgedev *vdev = netdev_priv(vpath->hldev->ndev);
u64 new_count, val64, val164;
if (vdev->titan1) {
new_count = readq(&vpath->vp_reg->rxdmem_size);
new_count &= 0x1fff;
} else
new_count = ring->config->ring_blocks * VXGE_HW_BLOCK_SIZE / 8;
val164 = VXGE_HW_RXDMEM_SIZE_PRC_RXDMEM_SIZE(new_count);
writeq(VXGE_HW_PRC_RXD_DOORBELL_NEW_QW_CNT(val164),
&vpath->vp_reg->prc_rxd_doorbell);
readl(&vpath->vp_reg->prc_rxd_doorbell);
val164 /= 2;
val64 = readq(&vpath->vp_reg->prc_cfg6);
val64 = VXGE_HW_PRC_CFG6_RXD_SPAT(val64);
val64 &= 0x1ff;
/*
* Each RxD is of 4 qwords
*/
new_count -= (val64 + 1);
val64 = min(val164, new_count) / 4;
ring->rxds_limit = min(ring->rxds_limit, val64);
if (ring->rxds_limit < 4)
ring->rxds_limit = 4;
}
/*
* __vxge_hw_blockpool_block_free - Frees a block from block pool
* @devh: Hal device
* @entry: Entry of block to be freed
*
* This function frees a block from block pool
*/
static void
__vxge_hw_blockpool_block_free(struct __vxge_hw_device *devh,
struct __vxge_hw_blockpool_entry *entry)
{
struct __vxge_hw_blockpool *blockpool;
blockpool = &devh->block_pool;
if (entry->length == blockpool->block_size) {
list_add(&entry->item, &blockpool->free_block_list);
blockpool->pool_size++;
}
__vxge_hw_blockpool_blocks_remove(blockpool);
}
/*
* vxge_hw_vpath_close - Close the handle got from previous vpath (vpath) open
* This function is used to close access to virtual path opened
* earlier.
*/
enum vxge_hw_status vxge_hw_vpath_close(struct __vxge_hw_vpath_handle *vp)
{
struct __vxge_hw_virtualpath *vpath = NULL;
struct __vxge_hw_device *devh = NULL;
u32 vp_id = vp->vpath->vp_id;
u32 is_empty = TRUE;
enum vxge_hw_status status = VXGE_HW_OK;
vpath = vp->vpath;
devh = vpath->hldev;
if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
status = VXGE_HW_ERR_VPATH_NOT_OPEN;
goto vpath_close_exit;
}
list_del(&vp->item);
if (!list_empty(&vpath->vpath_handles)) {
list_add(&vp->item, &vpath->vpath_handles);
is_empty = FALSE;
}
if (!is_empty) {
status = VXGE_HW_FAIL;
goto vpath_close_exit;
}
devh->vpaths_deployed &= ~vxge_mBIT(vp_id);
if (vpath->ringh != NULL)
__vxge_hw_ring_delete(vp);
if (vpath->fifoh != NULL)
__vxge_hw_fifo_delete(vp);
if (vpath->stats_block != NULL)
__vxge_hw_blockpool_block_free(devh, vpath->stats_block);
vfree(vp);
__vxge_hw_vp_terminate(devh, vp_id);
vpath_close_exit:
return status;
}
/*
* vxge_hw_vpath_reset - Resets vpath
* This function is used to request a reset of vpath
*/
enum vxge_hw_status vxge_hw_vpath_reset(struct __vxge_hw_vpath_handle *vp)
{
enum vxge_hw_status status;
u32 vp_id;
struct __vxge_hw_virtualpath *vpath = vp->vpath;
vp_id = vpath->vp_id;
if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
status = VXGE_HW_ERR_VPATH_NOT_OPEN;
goto exit;
}
status = __vxge_hw_vpath_reset(vpath->hldev, vp_id);
if (status == VXGE_HW_OK)
vpath->sw_stats->soft_reset_cnt++;
exit:
return status;
}
/*
* vxge_hw_vpath_recover_from_reset - Poll for reset complete and re-initialize.
* This function poll's for the vpath reset completion and re initializes
* the vpath.
*/
enum vxge_hw_status
vxge_hw_vpath_recover_from_reset(struct __vxge_hw_vpath_handle *vp)
{
struct __vxge_hw_virtualpath *vpath = NULL;
enum vxge_hw_status status;
struct __vxge_hw_device *hldev;
u32 vp_id;
vp_id = vp->vpath->vp_id;
vpath = vp->vpath;
hldev = vpath->hldev;
if (vpath->vp_open == VXGE_HW_VP_NOT_OPEN) {
status = VXGE_HW_ERR_VPATH_NOT_OPEN;
goto exit;
}
status = __vxge_hw_vpath_reset_check(vpath);
if (status != VXGE_HW_OK)
goto exit;
status = __vxge_hw_vpath_sw_reset(hldev, vp_id);
if (status != VXGE_HW_OK)
goto exit;
status = __vxge_hw_vpath_initialize(hldev, vp_id);
if (status != VXGE_HW_OK)
goto exit;
if (vpath->ringh != NULL)
__vxge_hw_vpath_prc_configure(hldev, vp_id);
memset(vpath->hw_stats, 0,
sizeof(struct vxge_hw_vpath_stats_hw_info));
memset(vpath->hw_stats_sav, 0,
sizeof(struct vxge_hw_vpath_stats_hw_info));
writeq(vpath->stats_block->dma_addr,
&vpath->vp_reg->stats_cfg);
status = vxge_hw_vpath_stats_enable(vp);
exit:
return status;
}
/*
* vxge_hw_vpath_enable - Enable vpath.
* This routine clears the vpath reset thereby enabling a vpath
* to start forwarding frames and generating interrupts.
*/
void
vxge_hw_vpath_enable(struct __vxge_hw_vpath_handle *vp)
{
struct __vxge_hw_device *hldev;
u64 val64;
hldev = vp->vpath->hldev;
val64 = VXGE_HW_CMN_RSTHDLR_CFG1_CLR_VPATH_RESET(
1 << (16 - vp->vpath->vp_id));
__vxge_hw_pio_mem_write32_upper((u32)vxge_bVALn(val64, 0, 32),
&hldev->common_reg->cmn_rsthdlr_cfg1);
}
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