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freebsd-dev/sys/contrib/octeon-sdk/cvmx-ilk.c
Juli Mallett dc4ee6ca91 Merge the Cavium Octeon SDK 2.3.0 Simple Executive code and update FreeBSD to 
make use of it where possible.

This primarily brings in support for newer hardware, and FreeBSD is not yet
able to support the abundance of IRQs on new hardware and many features in the
Ethernet driver.

Because of the changes to IRQs in the Simple Executive, we have to maintain our
own list of Octeon IRQs now, which probably can be pared-down and be specific
to the CIU interrupt unit soon, and when other interrupt mechanisms are added
they can maintain their own definitions.

Remove unmasking of interrupts from within the UART device now that the
function used is no longer present in the Simple Executive.  The unmasking
seems to have been gratuitous as this is more properly handled by the buses
above the UART device, and seems to work on that basis.
2012-03-11 06:17:49 +00:00

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/***********************license start***************
* Copyright (c) 2003-2010 Cavium Inc. (support@cavium.com). All rights
* reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of Cavium Inc. nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
* This Software, including technical data, may be subject to U.S. export control
* laws, including the U.S. Export Administration Act and its associated
* regulations, and may be subject to export or import regulations in other
* countries.
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR
* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
* THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
* DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
* SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
* MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
* VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
* CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
* PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
***********************license end**************************************/
/**
* @file
*
* Support library for the ILK
*
* <hr>$Revision: 49448 $<hr>
*/
#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
#include <linux/module.h>
#include <asm/octeon/cvmx.h>
#include <asm/octeon/cvmx-config.h>
#include <asm/octeon/cvmx-sysinfo.h>
#include <asm/octeon/cvmx-pko.h>
#include <asm/octeon/cvmx-ilk.h>
#include <asm/octeon/cvmx-ilk-defs.h>
#include <asm/octeon/cvmx-helper-util.h>
#include <asm/octeon/cvmx-helper-ilk.h>
#else
#include "cvmx.h"
#if !defined(__FreeBSD__) || !defined(_KERNEL)
#include "cvmx-config.h"
#endif
#include "cvmx-sysinfo.h"
#include "cvmx-pko.h"
#include "cvmx-ilk.h"
#include "cvmx-helper-util.h"
#include "cvmx-helper-ilk.h"
#endif
#ifdef CVMX_ENABLE_HELPER_FUNCTIONS
/*
* global configurations. to disable the 2nd ILK, set
* cvmx_ilk_lane_mask[CVMX_NUM_ILK_INTF] = {0xff, 0x0} and
* cvmx_ilk_chans[CVMX_NUM_ILK_INTF] = {8, 0}
*/
unsigned char cvmx_ilk_lane_mask[CVMX_NUM_ILK_INTF] = {0xf, 0xf0};
//#define SINGLE_PORT_SIM_ILK
#ifdef SINGLE_PORT_SIM_ILK
unsigned char cvmx_ilk_chans[CVMX_NUM_ILK_INTF] = {1, 1};
unsigned char cvmx_ilk_chan_map[CVMX_NUM_ILK_INTF][CVMX_MAX_ILK_CHANS] =
{{0},
{0}};
#else /* sample case */
unsigned char cvmx_ilk_chans[CVMX_NUM_ILK_INTF] = {8, 8};
unsigned char cvmx_ilk_chan_map[CVMX_NUM_ILK_INTF][CVMX_MAX_ILK_CHANS] =
{{0, 1, 2, 3, 4, 5, 6, 7},
{0, 1, 2, 3, 4, 5, 6, 7}};
#endif
/* Default callbacks, can be overridden
* using cvmx_ilk_get_callbacks/cvmx_ilk_set_callbacks
*/
static cvmx_ilk_callbacks_t cvmx_ilk_callbacks = {
.calendar_setup_rx = cvmx_ilk_cal_setup_rx,
};
static cvmx_ilk_intf_t cvmx_ilk_intf_cfg[CVMX_NUM_ILK_INTF];
/**
* Get current ILK initialization callbacks
*
* @param callbacks Pointer to the callbacks structure.to fill
*
* @return Pointer to cvmx_ilk_callbacks_t structure.
*/
void cvmx_ilk_get_callbacks(cvmx_ilk_callbacks_t * callbacks)
{
memcpy(callbacks, &cvmx_ilk_callbacks, sizeof(cvmx_ilk_callbacks));
}
/**
* Set new ILK initialization callbacks
*
* @param new_callbacks Pointer to an updated callbacks structure.
*/
void cvmx_ilk_set_callbacks(cvmx_ilk_callbacks_t * new_callbacks)
{
memcpy(&cvmx_ilk_callbacks, new_callbacks, sizeof(cvmx_ilk_callbacks));
}
/**
* Initialize and start the ILK interface.
*
* @param interface The identifier of the packet interface to configure and
* use as a ILK interface. cn68xx has 2 interfaces: ilk0 and
* ilk1.
*
* @param lane_mask the lane group for this interface
*
* @return Zero on success, negative of failure.
*/
int cvmx_ilk_start_interface (int interface, unsigned char lane_mask)
{
int res = -1;
int other_intf, this_qlm, other_qlm;
unsigned char uni_mask;
cvmx_mio_qlmx_cfg_t mio_qlmx_cfg, other_mio_qlmx_cfg;
cvmx_ilk_txx_cfg0_t ilk_txx_cfg0;
cvmx_ilk_rxx_cfg0_t ilk_rxx_cfg0;
cvmx_ilk_ser_cfg_t ilk_ser_cfg;
if (!(OCTEON_IS_MODEL(OCTEON_CN68XX)))
return res;
if (interface >= CVMX_NUM_ILK_INTF)
return res;
if (lane_mask == 0)
return res;
/* check conflicts between 2 ilk interfaces. 1 lane can be assigned to 1
* interface only */
other_intf = !interface;
this_qlm = interface + CVMX_ILK_QLM_BASE;
other_qlm = other_intf + CVMX_ILK_QLM_BASE;
if (cvmx_ilk_intf_cfg[other_intf].lane_en_mask & lane_mask)
{
cvmx_dprintf ("ILK%d: %s: lane assignment conflict\n", interface,
__FUNCTION__);
return res;
}
/* check the legality of the lane mask. interface 0 can have 8 lanes,
* while interface 1 can have 4 lanes at most */
uni_mask = lane_mask >> (interface * 4);
if ((uni_mask != 0x1 && uni_mask != 0x3 && uni_mask != 0xf &&
uni_mask != 0xff) || (interface == 1 && lane_mask > 0xf0))
{
#if CVMX_ENABLE_DEBUG_PRINTS
cvmx_dprintf ("ILK%d: %s: incorrect lane mask: 0x%x \n", interface,
__FUNCTION__, uni_mask);
#endif
return res;
}
/* check the availability of qlms. qlm_cfg = 001 means the chip is fused
* to give this qlm to ilk */
mio_qlmx_cfg.u64 = cvmx_read_csr (CVMX_MIO_QLMX_CFG(this_qlm));
other_mio_qlmx_cfg.u64 = cvmx_read_csr (CVMX_MIO_QLMX_CFG(other_qlm));
if (mio_qlmx_cfg.s.qlm_cfg != 1 ||
(uni_mask == 0xff && other_mio_qlmx_cfg.s.qlm_cfg != 1))
{
#if CVMX_ENABLE_DEBUG_PRINTS
cvmx_dprintf ("ILK%d: %s: qlm unavailable\n", interface, __FUNCTION__);
#endif
return res;
}
/* power up the serdes */
ilk_ser_cfg.u64 = cvmx_read_csr (CVMX_ILK_SER_CFG);
if (ilk_ser_cfg.s.ser_pwrup == 0)
{
ilk_ser_cfg.s.ser_rxpol_auto = 1;
ilk_ser_cfg.s.ser_rxpol = 0;
ilk_ser_cfg.s.ser_txpol = 0;
ilk_ser_cfg.s.ser_reset_n = 0xff;
ilk_ser_cfg.s.ser_haul = 0;
}
ilk_ser_cfg.s.ser_pwrup |= ((interface ==0) && (lane_mask > 0xf)) ?
0x3 : (1 << interface);
cvmx_write_csr (CVMX_ILK_SER_CFG, ilk_ser_cfg.u64);
/* configure the lane enable of the interface */
ilk_txx_cfg0.u64 = cvmx_read_csr (CVMX_ILK_TXX_CFG0(interface));
ilk_rxx_cfg0.u64 = cvmx_read_csr (CVMX_ILK_RXX_CFG0(interface));
ilk_txx_cfg0.s.lane_ena = ilk_rxx_cfg0.s.lane_ena = lane_mask;
cvmx_write_csr (CVMX_ILK_TXX_CFG0(interface), ilk_txx_cfg0.u64);
cvmx_write_csr (CVMX_ILK_RXX_CFG0(interface), ilk_rxx_cfg0.u64);
/* write to local cache. for lane speed, if interface 0 has 8 lanes,
* assume both qlms have the same speed */
cvmx_ilk_intf_cfg[interface].intf_en = 1;
cvmx_ilk_intf_cfg[interface].lane_en_mask = lane_mask;
res = 0;
return res;
}
/**
* set pipe group base and length for the interface
*
* @param interface The identifier of the packet interface to configure and
* use as a ILK interface. cn68xx has 2 interfaces: ilk0 and
* ilk1.
*
* @param pipe_base the base of the pipe group
* @param pipe_len the length of the pipe group
*
* @return Zero on success, negative of failure.
*/
int cvmx_ilk_set_pipe (int interface, int pipe_base, unsigned int pipe_len)
{
int res = -1;
cvmx_ilk_txx_pipe_t ilk_txx_pipe;
if (!(OCTEON_IS_MODEL(OCTEON_CN68XX)))
return res;
if (interface >= CVMX_NUM_ILK_INTF)
return res;
/* base should be between 0 and 127. base + length should be <127 */
if (!(pipe_base >= 0 && pipe_base <= 127) || (pipe_base + pipe_len > 127))
{
#if CVMX_ENABLE_DEBUG_PRINTS
cvmx_dprintf ("ILK%d: %s: pipe base/length out of bounds\n", interface,
__FUNCTION__);
#endif
return res;
}
/* set them in ilk tx section */
ilk_txx_pipe.u64 = cvmx_read_csr (CVMX_ILK_TXX_PIPE(interface));
ilk_txx_pipe.s.base = pipe_base;
ilk_txx_pipe.s.nump = pipe_len;
cvmx_write_csr (CVMX_ILK_TXX_PIPE(interface), ilk_txx_pipe.u64);
res = 0;
return res;
}
/**
* set logical channels for tx
*
* @param interface The identifier of the packet interface to configure and
* use as a ILK interface. cn68xx has 2 interfaces: ilk0 and
* ilk1.
*
* @param pch pointer to an array of pipe-channel pair
* @param num_chs the number of entries in the pipe-channel array
*
* @return Zero on success, negative of failure.
*/
int cvmx_ilk_tx_set_channel (int interface, cvmx_ilk_pipe_chan_t *pch,
unsigned int num_chs)
{
int res = -1;
cvmx_ilk_txx_idx_pmap_t ilk_txx_idx_pmap;
unsigned int i;
if (!(OCTEON_IS_MODEL(OCTEON_CN68XX)))
return res;
if (interface >= CVMX_NUM_ILK_INTF)
return res;
if (pch == NULL || num_chs > CVMX_MAX_ILK_PIPES)
return res;
/* write the pair to ilk tx */
for (i = 0; i < num_chs; i++)
{
ilk_txx_idx_pmap.u64 = 0;
ilk_txx_idx_pmap.s.index = pch->pipe;
cvmx_write_csr(CVMX_ILK_TXX_IDX_PMAP(interface), ilk_txx_idx_pmap.u64);
cvmx_write_csr(CVMX_ILK_TXX_MEM_PMAP(interface), pch->chan);
pch++;
}
res = 0;
return res;
}
/**
* set pkind for rx
*
* @param interface The identifier of the packet interface to configure and
* use as a ILK interface. cn68xx has 2 interfaces: ilk0 and
* ilk1.
*
* @param chpknd pointer to an array of channel-pkind pair
* @param num_pknd the number of entries in the channel-pkind array
*
* @return Zero on success, negative of failure.
*/
int cvmx_ilk_rx_set_pknd (int interface, cvmx_ilk_chan_pknd_t *chpknd,
unsigned int num_pknd)
{
int res = -1;
cvmx_ilk_rxf_idx_pmap_t ilk_rxf_idx_pmap;
unsigned int i;
if (!(OCTEON_IS_MODEL(OCTEON_CN68XX)))
return res;
if (interface >= CVMX_NUM_ILK_INTF)
return res;
if (chpknd == NULL || num_pknd > CVMX_MAX_ILK_PKNDS)
return res;
/* write the pair to ilk rx. note the channels for different interfaces
* are given in *chpknd and interface is not used as a param */
for (i = 0; i < num_pknd; i++)
{
ilk_rxf_idx_pmap.u64 = 0;
ilk_rxf_idx_pmap.s.index = interface * 256 + chpknd->chan;
cvmx_write_csr (CVMX_ILK_RXF_IDX_PMAP, ilk_rxf_idx_pmap.u64);
cvmx_write_csr (CVMX_ILK_RXF_MEM_PMAP, chpknd->pknd);
chpknd++;
}
res = 0;
return res;
}
/**
* configure calendar for rx
*
* @param interface The identifier of the packet interface to configure and
* use as a ILK interface. cn68xx has 2 interfaces: ilk0 and
* ilk1.
*
* @param cal_depth the number of calendar entries
* @param pent pointer to calendar entries
*
* @return Zero on success, negative of failure.
*/
static int cvmx_ilk_rx_cal_conf (int interface, int cal_depth,
cvmx_ilk_cal_entry_t *pent)
{
int res = -1, num_grp, num_rest, i, j;
cvmx_ilk_rxx_cfg0_t ilk_rxx_cfg0;
cvmx_ilk_rxx_idx_cal_t ilk_rxx_idx_cal;
cvmx_ilk_rxx_mem_cal0_t ilk_rxx_mem_cal0;
cvmx_ilk_rxx_mem_cal1_t ilk_rxx_mem_cal1;
unsigned long int tmp;
if (!(OCTEON_IS_MODEL(OCTEON_CN68XX)))
return res;
if (interface >= CVMX_NUM_ILK_INTF)
return res;
if (cal_depth < CVMX_ILK_RX_MIN_CAL || cal_depth > CVMX_ILK_MAX_CAL
|| pent == NULL)
return res;
/* mandatory link-level fc as workarounds for ILK-15397 and ILK-15479 */
/* TODO: test effectiveness */
#if 0
if (OCTEON_IS_MODEL(OCTEON_CN68XX_PASS1_0) && pent->ent_ctrl == PIPE_BPID)
for (i = 0; i < cal_depth; i++)
pent->ent_ctrl = LINK;
#endif
/* set the depth */
ilk_rxx_cfg0.u64 = cvmx_read_csr (CVMX_ILK_RXX_CFG0(interface));
ilk_rxx_cfg0.s.cal_depth = cal_depth;
cvmx_write_csr (CVMX_ILK_RXX_CFG0(interface), ilk_rxx_cfg0.u64);
/* set the calendar index */
num_grp = cal_depth / CVMX_ILK_CAL_GRP_SZ;
num_rest = cal_depth % CVMX_ILK_CAL_GRP_SZ;
ilk_rxx_idx_cal.u64 = 0;
ilk_rxx_idx_cal.s.inc = 1;
cvmx_write_csr (CVMX_ILK_RXX_IDX_CAL(interface), ilk_rxx_idx_cal.u64);
/* set the calendar entries. each group has both cal0 and cal1 registers */
for (i = 0; i < num_grp; i++)
{
ilk_rxx_mem_cal0.u64 = 0;
for (j = 0; j < CVMX_ILK_CAL_GRP_SZ/2; j++)
{
tmp = 0;
tmp = pent->pipe_bpid & ~(~tmp << CVMX_ILK_PIPE_BPID_SZ);
tmp <<= (CVMX_ILK_PIPE_BPID_SZ + CVMX_ILK_ENT_CTRL_SZ) * j;
ilk_rxx_mem_cal0.u64 |= tmp;
tmp = 0;
tmp = pent->ent_ctrl & ~(~tmp << CVMX_ILK_ENT_CTRL_SZ);
tmp <<= (CVMX_ILK_PIPE_BPID_SZ + CVMX_ILK_ENT_CTRL_SZ) * j +
CVMX_ILK_PIPE_BPID_SZ;
ilk_rxx_mem_cal0.u64 |= tmp;
pent++;
}
cvmx_write_csr(CVMX_ILK_RXX_MEM_CAL0(interface), ilk_rxx_mem_cal0.u64);
ilk_rxx_mem_cal1.u64 = 0;
for (j = 0; j < CVMX_ILK_CAL_GRP_SZ/2; j++)
{
tmp = 0;
tmp = pent->pipe_bpid & ~(~tmp << CVMX_ILK_PIPE_BPID_SZ);
tmp <<= (CVMX_ILK_PIPE_BPID_SZ + CVMX_ILK_ENT_CTRL_SZ) * j;
ilk_rxx_mem_cal1.u64 |= tmp;
tmp = 0;
tmp = pent->ent_ctrl & ~(~tmp << CVMX_ILK_ENT_CTRL_SZ);
tmp <<= (CVMX_ILK_PIPE_BPID_SZ + CVMX_ILK_ENT_CTRL_SZ) * j +
CVMX_ILK_PIPE_BPID_SZ;
ilk_rxx_mem_cal1.u64 |= tmp;
pent++;
}
cvmx_write_csr(CVMX_ILK_RXX_MEM_CAL1(interface), ilk_rxx_mem_cal1.u64);
}
/* set the calendar entries, the fraction of a group. but both cal0 and
* cal1 must be written */
ilk_rxx_mem_cal0.u64 = 0;
ilk_rxx_mem_cal1.u64 = 0;
for (i = 0; i < num_rest; i++)
{
if (i < CVMX_ILK_CAL_GRP_SZ/2)
{
tmp = 0;
tmp = pent->pipe_bpid & ~(~tmp << CVMX_ILK_PIPE_BPID_SZ);
tmp <<= (CVMX_ILK_PIPE_BPID_SZ + CVMX_ILK_ENT_CTRL_SZ) * i;
ilk_rxx_mem_cal0.u64 |= tmp;
tmp = 0;
tmp = pent->ent_ctrl & ~(~tmp << CVMX_ILK_ENT_CTRL_SZ);
tmp <<= (CVMX_ILK_PIPE_BPID_SZ + CVMX_ILK_ENT_CTRL_SZ) * i +
CVMX_ILK_PIPE_BPID_SZ;
ilk_rxx_mem_cal0.u64 |= tmp;
pent++;
}
if (i >= CVMX_ILK_CAL_GRP_SZ/2)
{
tmp = 0;
tmp = pent->pipe_bpid & ~(~tmp << CVMX_ILK_PIPE_BPID_SZ);
tmp <<= (CVMX_ILK_PIPE_BPID_SZ + CVMX_ILK_ENT_CTRL_SZ) *
(i - CVMX_ILK_CAL_GRP_SZ/2);
ilk_rxx_mem_cal1.u64 |= tmp;
tmp = 0;
tmp = pent->ent_ctrl & ~(~tmp << CVMX_ILK_ENT_CTRL_SZ);
tmp <<= (CVMX_ILK_PIPE_BPID_SZ + CVMX_ILK_ENT_CTRL_SZ) *
(i - CVMX_ILK_CAL_GRP_SZ/2) + CVMX_ILK_PIPE_BPID_SZ;
ilk_rxx_mem_cal1.u64 |= tmp;
pent++;
}
}
cvmx_write_csr(CVMX_ILK_RXX_MEM_CAL0(interface), ilk_rxx_mem_cal0.u64);
cvmx_write_csr(CVMX_ILK_RXX_MEM_CAL1(interface), ilk_rxx_mem_cal1.u64);
cvmx_read_csr (CVMX_ILK_RXX_MEM_CAL1(interface));
return 0;
}
/**
* set high water mark for rx
*
* @param interface The identifier of the packet interface to configure and
* use as a ILK interface. cn68xx has 2 interfaces: ilk0 and
* ilk1.
*
* @param hi_wm high water mark for this interface
*
* @return Zero on success, negative of failure.
*/
static int cvmx_ilk_rx_set_hwm (int interface, int hi_wm)
{
int res = -1;
cvmx_ilk_rxx_cfg1_t ilk_rxx_cfg1;
if (!(OCTEON_IS_MODEL(OCTEON_CN68XX)))
return res;
if (interface >= CVMX_NUM_ILK_INTF)
return res;
if (hi_wm <= 0)
return res;
/* set the hwm */
ilk_rxx_cfg1.u64 = cvmx_read_csr (CVMX_ILK_RXX_CFG1(interface));
ilk_rxx_cfg1.s.rx_fifo_hwm = hi_wm;
cvmx_write_csr (CVMX_ILK_RXX_CFG1(interface), ilk_rxx_cfg1.u64);
res = 0;
return res;
}
/**
* enable calendar for rx
*
* @param interface The identifier of the packet interface to configure and
* use as a ILK interface. cn68xx has 2 interfaces: ilk0 and
* ilk1.
*
* @param cal_ena enable or disable calendar
*
* @return Zero on success, negative of failure.
*/
static int cvmx_ilk_rx_cal_ena (int interface, unsigned char cal_ena)
{
int res = -1;
cvmx_ilk_rxx_cfg0_t ilk_rxx_cfg0;
if (!(OCTEON_IS_MODEL(OCTEON_CN68XX)))
return res;
if (interface >= CVMX_NUM_ILK_INTF)
return res;
/* set the enable */
ilk_rxx_cfg0.u64 = cvmx_read_csr (CVMX_ILK_RXX_CFG0(interface));
ilk_rxx_cfg0.s.cal_ena = cal_ena;
cvmx_write_csr (CVMX_ILK_RXX_CFG0(interface), ilk_rxx_cfg0.u64);
cvmx_read_csr (CVMX_ILK_RXX_CFG0(interface));
res = 0;
return res;
}
/**
* set up calendar for rx
*
* @param interface The identifier of the packet interface to configure and
* use as a ILK interface. cn68xx has 2 interfaces: ilk0 and
* ilk1.
*
* @param cal_depth the number of calendar entries
* @param pent pointer to calendar entries
* @param hi_wm high water mark for this interface
* @param cal_ena enable or disable calendar
*
* @return Zero on success, negative of failure.
*/
int cvmx_ilk_cal_setup_rx (int interface, int cal_depth,
cvmx_ilk_cal_entry_t *pent, int hi_wm,
unsigned char cal_ena)
{
int res = -1;
if (!(OCTEON_IS_MODEL(OCTEON_CN68XX)))
return res;
if (interface >= CVMX_NUM_ILK_INTF)
return res;
res = cvmx_ilk_rx_cal_conf (interface, cal_depth, pent);
if (res < 0)
return res;
res = cvmx_ilk_rx_set_hwm (interface, hi_wm);
if (res < 0)
return res;
res = cvmx_ilk_rx_cal_ena (interface, cal_ena);
return res;
}
#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
EXPORT_SYMBOL(cvmx_ilk_cal_setup_rx);
#endif
/**
* configure calendar for tx
*
* @param interface The identifier of the packet interface to configure and
* use as a ILK interface. cn68xx has 2 interfaces: ilk0 and
* ilk1.
*
* @param cal_depth the number of calendar entries
* @param pent pointer to calendar entries
*
* @return Zero on success, negative of failure.
*/
static int cvmx_ilk_tx_cal_conf (int interface, int cal_depth,
cvmx_ilk_cal_entry_t *pent)
{
int res = -1, num_grp, num_rest, i, j;
cvmx_ilk_txx_cfg0_t ilk_txx_cfg0;
cvmx_ilk_txx_idx_cal_t ilk_txx_idx_cal;
cvmx_ilk_txx_mem_cal0_t ilk_txx_mem_cal0;
cvmx_ilk_txx_mem_cal1_t ilk_txx_mem_cal1;
unsigned long int tmp;
cvmx_ilk_cal_entry_t *ent_tmp;
if (!(OCTEON_IS_MODEL(OCTEON_CN68XX)))
return res;
if (interface >= CVMX_NUM_ILK_INTF)
return res;
if (cal_depth < CVMX_ILK_TX_MIN_CAL || cal_depth > CVMX_ILK_MAX_CAL
|| pent == NULL)
return res;
/* mandatory link-level fc as workarounds for ILK-15397 and ILK-15479 */
/* TODO: test effectiveness */
#if 0
if (OCTEON_IS_MODEL(OCTEON_CN68XX_PASS1_0) && pent->ent_ctrl == PIPE_BPID)
for (i = 0; i < cal_depth; i++)
pent->ent_ctrl = LINK;
#endif
/* tx calendar depth must be a multiple of 8 */
num_grp = (cal_depth - 1) / CVMX_ILK_CAL_GRP_SZ + 1;
num_rest = cal_depth % CVMX_ILK_CAL_GRP_SZ;
if (num_rest != 0)
{
ent_tmp = pent + cal_depth;
for (i = num_rest; i < 8; i++, ent_tmp++)
{
ent_tmp->pipe_bpid = 0;
ent_tmp->ent_ctrl = XOFF;
}
}
cal_depth = num_grp * 8;
/* set the depth */
ilk_txx_cfg0.u64 = cvmx_read_csr (CVMX_ILK_TXX_CFG0(interface));
ilk_txx_cfg0.s.cal_depth = cal_depth;
cvmx_write_csr (CVMX_ILK_TXX_CFG0(interface), ilk_txx_cfg0.u64);
/* set the calendar index */
ilk_txx_idx_cal.u64 = 0;
ilk_txx_idx_cal.s.inc = 1;
cvmx_write_csr (CVMX_ILK_TXX_IDX_CAL(interface), ilk_txx_idx_cal.u64);
/* set the calendar entries. each group has both cal0 and cal1 registers */
for (i = 0; i < num_grp; i++)
{
ilk_txx_mem_cal0.u64 = 0;
for (j = 0; j < CVMX_ILK_CAL_GRP_SZ/2; j++)
{
tmp = 0;
tmp = pent->pipe_bpid & ~(~tmp << CVMX_ILK_PIPE_BPID_SZ);
tmp <<= (CVMX_ILK_PIPE_BPID_SZ + CVMX_ILK_ENT_CTRL_SZ) * j;
ilk_txx_mem_cal0.u64 |= tmp;
tmp = 0;
tmp = pent->ent_ctrl & ~(~tmp << CVMX_ILK_ENT_CTRL_SZ);
tmp <<= (CVMX_ILK_PIPE_BPID_SZ + CVMX_ILK_ENT_CTRL_SZ) * j +
CVMX_ILK_PIPE_BPID_SZ;
ilk_txx_mem_cal0.u64 |= tmp;
pent++;
}
cvmx_write_csr(CVMX_ILK_TXX_MEM_CAL0(interface), ilk_txx_mem_cal0.u64);
ilk_txx_mem_cal1.u64 = 0;
for (j = 0; j < CVMX_ILK_CAL_GRP_SZ/2; j++)
{
tmp = 0;
tmp = pent->pipe_bpid & ~(~tmp << CVMX_ILK_PIPE_BPID_SZ);
tmp <<= (CVMX_ILK_PIPE_BPID_SZ + CVMX_ILK_ENT_CTRL_SZ) * j;
ilk_txx_mem_cal1.u64 |= tmp;
tmp = 0;
tmp = pent->ent_ctrl & ~(~tmp << CVMX_ILK_ENT_CTRL_SZ);
tmp <<= (CVMX_ILK_PIPE_BPID_SZ + CVMX_ILK_ENT_CTRL_SZ) * j +
CVMX_ILK_PIPE_BPID_SZ;
ilk_txx_mem_cal1.u64 |= tmp;
pent++;
}
cvmx_write_csr(CVMX_ILK_TXX_MEM_CAL1(interface), ilk_txx_mem_cal1.u64);
}
cvmx_read_csr (CVMX_ILK_TXX_MEM_CAL1(interface));
return 0;
}
#ifdef CVMX_ILK_BP_CONF_ENA
/**
* configure backpressure for tx
*
* @param interface The identifier of the packet interface to configure and
* use as a ILK interface. cn68xx has 2 interfaces: ilk0 and
* ilk1.
*
* @param cal_depth the number of calendar entries
* @param pent pointer to calendar entries
*
* @return Zero on success, negative of failure.
*/
static int cvmx_ilk_bp_conf (int interface, int cal_depth, cvmx_ilk_cal_entry_t *pent)
{
int res = -1, i;
cvmx_ipd_ctl_status_t ipd_ctl_status;
cvmx_ilk_cal_entry_t *tmp;
unsigned char bpid;
cvmx_ipd_bpidx_mbuf_th_t ipd_bpidx_mbuf_th;
/* enable bp for the interface */
ipd_ctl_status.u64 = cvmx_read_csr (CVMX_IPD_CTL_STATUS);
ipd_ctl_status.s.pbp_en = 1;
cvmx_write_csr (CVMX_IPD_CTL_STATUS, ipd_ctl_status.u64);
/* enable bp for each id */
for (i = 0, tmp = pent; i < cal_depth; i++, tmp++)
{
bpid = tmp->pipe_bpid;
ipd_bpidx_mbuf_th.u64 =
cvmx_read_csr (CVMX_IPD_BPIDX_MBUF_TH(bpid));
ipd_bpidx_mbuf_th.s.page_cnt = 1; /* 256 buffers */
ipd_bpidx_mbuf_th.s.bp_enb = 1;
cvmx_write_csr (CVMX_IPD_BPIDX_MBUF_TH(bpid), ipd_bpidx_mbuf_th.u64);
}
res = 0;
return res;
}
#endif
/**
* enable calendar for tx
*
* @param interface The identifier of the packet interface to configure and
* use as a ILK interface. cn68xx has 2 interfaces: ilk0 and
* ilk1.
*
* @param cal_ena enable or disable calendar
*
* @return Zero on success, negative of failure.
*/
static int cvmx_ilk_tx_cal_ena (int interface, unsigned char cal_ena)
{
int res = -1;
cvmx_ilk_txx_cfg0_t ilk_txx_cfg0;
if (!(OCTEON_IS_MODEL(OCTEON_CN68XX)))
return res;
if (interface >= CVMX_NUM_ILK_INTF)
return res;
/* set the enable */
ilk_txx_cfg0.u64 = cvmx_read_csr (CVMX_ILK_TXX_CFG0(interface));
ilk_txx_cfg0.s.cal_ena = cal_ena;
cvmx_write_csr (CVMX_ILK_TXX_CFG0(interface), ilk_txx_cfg0.u64);
cvmx_read_csr (CVMX_ILK_TXX_CFG0(interface));
res = 0;
return res;
}
/**
* set up calendar for tx
*
* @param interface The identifier of the packet interface to configure and
* use as a ILK interface. cn68xx has 2 interfaces: ilk0 and
* ilk1.
*
* @param cal_depth the number of calendar entries
* @param pent pointer to calendar entries
* @param cal_ena enable or disable calendar
*
* @return Zero on success, negative of failure.
*/
int cvmx_ilk_cal_setup_tx (int interface, int cal_depth,
cvmx_ilk_cal_entry_t *pent, unsigned char cal_ena)
{
int res = -1;
if (!(OCTEON_IS_MODEL(OCTEON_CN68XX)))
return res;
if (interface >= CVMX_NUM_ILK_INTF)
return res;
res = cvmx_ilk_tx_cal_conf (interface, cal_depth, pent);
if (res < 0)
return res;
#ifdef CVMX_ILK_BP_CONF_ENA
res = cvmx_ilk_bp_conf (interface, cal_depth, pent);
if (res < 0)
return res;
#endif
res = cvmx_ilk_tx_cal_ena (interface, cal_ena);
return res;
}
#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
EXPORT_SYMBOL(cvmx_ilk_cal_setup_tx);
#endif
#ifdef CVMX_ILK_STATS_ENA
static void cvmx_ilk_reg_dump_rx (int interface)
{
int i;
cvmx_ilk_rxx_cfg0_t ilk_rxx_cfg0;
cvmx_ilk_rxx_cfg1_t ilk_rxx_cfg1;
cvmx_ilk_rxx_int_t ilk_rxx_int;
cvmx_ilk_rxx_jabber_t ilk_rxx_jabber;
cvmx_ilk_rx_lnex_cfg_t ilk_rx_lnex_cfg;
cvmx_ilk_rx_lnex_int_t ilk_rx_lnex_int;
cvmx_ilk_gbl_cfg_t ilk_gbl_cfg;
cvmx_ilk_ser_cfg_t ilk_ser_cfg;
cvmx_ilk_rxf_idx_pmap_t ilk_rxf_idx_pmap;
cvmx_ilk_rxf_mem_pmap_t ilk_rxf_mem_pmap;
cvmx_ilk_rxx_idx_cal_t ilk_rxx_idx_cal;
cvmx_ilk_rxx_mem_cal0_t ilk_rxx_mem_cal0;
cvmx_ilk_rxx_mem_cal1_t ilk_rxx_mem_cal1;
ilk_rxx_cfg0.u64 = cvmx_read_csr (CVMX_ILK_RXX_CFG0(interface));
cvmx_dprintf ("ilk rxx cfg0: 0x%16lx\n", ilk_rxx_cfg0.u64);
ilk_rxx_cfg1.u64 = cvmx_read_csr (CVMX_ILK_RXX_CFG1(interface));
cvmx_dprintf ("ilk rxx cfg1: 0x%16lx\n", ilk_rxx_cfg1.u64);
ilk_rxx_int.u64 = cvmx_read_csr (CVMX_ILK_RXX_INT(interface));
cvmx_dprintf ("ilk rxx int: 0x%16lx\n", ilk_rxx_int.u64);
cvmx_write_csr (CVMX_ILK_RXX_INT(interface), ilk_rxx_int.u64);
ilk_rxx_jabber.u64 = cvmx_read_csr (CVMX_ILK_RXX_JABBER(interface));
cvmx_dprintf ("ilk rxx jabber: 0x%16lx\n", ilk_rxx_jabber.u64);
#define LNE_NUM_DBG 4
for (i = 0; i < LNE_NUM_DBG; i++)
{
ilk_rx_lnex_cfg.u64 = cvmx_read_csr (CVMX_ILK_RX_LNEX_CFG(i));
cvmx_dprintf ("ilk rx lnex cfg lane: %d 0x%16lx\n", i,
ilk_rx_lnex_cfg.u64);
}
for (i = 0; i < LNE_NUM_DBG; i++)
{
ilk_rx_lnex_int.u64 = cvmx_read_csr (CVMX_ILK_RX_LNEX_INT(i));
cvmx_dprintf ("ilk rx lnex int lane: %d 0x%16lx\n", i,
ilk_rx_lnex_int.u64);
cvmx_write_csr (CVMX_ILK_RX_LNEX_INT(i), ilk_rx_lnex_int.u64);
}
ilk_gbl_cfg.u64 = cvmx_read_csr (CVMX_ILK_GBL_CFG);
cvmx_dprintf ("ilk gbl cfg: 0x%16lx\n", ilk_gbl_cfg.u64);
ilk_ser_cfg.u64 = cvmx_read_csr (CVMX_ILK_SER_CFG);
cvmx_dprintf ("ilk ser cfg: 0x%16lx\n", ilk_ser_cfg.u64);
#define CHAN_NUM_DBG 8
ilk_rxf_idx_pmap.u64 = 0;
ilk_rxf_idx_pmap.s.index = interface * 256;
ilk_rxf_idx_pmap.s.inc = 1;
cvmx_write_csr (CVMX_ILK_RXF_IDX_PMAP, ilk_rxf_idx_pmap.u64);
for (i = 0; i < CHAN_NUM_DBG; i++)
{
ilk_rxf_mem_pmap.u64 = cvmx_read_csr (CVMX_ILK_RXF_MEM_PMAP);
cvmx_dprintf ("ilk rxf mem pmap chan: %3d 0x%16lx\n", i,
ilk_rxf_mem_pmap.u64);
}
#define CAL_NUM_DBG 2
ilk_rxx_idx_cal.u64 = 0;
ilk_rxx_idx_cal.s.inc = 1;
cvmx_write_csr (CVMX_ILK_RXX_IDX_CAL(interface), ilk_rxx_idx_cal.u64);
for (i = 0; i < CAL_NUM_DBG; i++)
{
ilk_rxx_idx_cal.u64 = cvmx_read_csr(CVMX_ILK_RXX_IDX_CAL(interface));
cvmx_dprintf ("ilk rxx idx cal: 0x%16lx\n", ilk_rxx_idx_cal.u64);
ilk_rxx_mem_cal0.u64 = cvmx_read_csr(CVMX_ILK_RXX_MEM_CAL0(interface));
cvmx_dprintf ("ilk rxx mem cal0: 0x%16lx\n", ilk_rxx_mem_cal0.u64);
ilk_rxx_mem_cal1.u64 = cvmx_read_csr(CVMX_ILK_RXX_MEM_CAL1(interface));
cvmx_dprintf ("ilk rxx mem cal1: 0x%16lx\n", ilk_rxx_mem_cal1.u64);
}
}
static void cvmx_ilk_reg_dump_tx (int interface)
{
int i;
cvmx_ilk_txx_cfg0_t ilk_txx_cfg0;
cvmx_ilk_txx_cfg1_t ilk_txx_cfg1;
cvmx_ilk_txx_idx_pmap_t ilk_txx_idx_pmap;
cvmx_ilk_txx_mem_pmap_t ilk_txx_mem_pmap;
cvmx_ilk_txx_int_t ilk_txx_int;
cvmx_ilk_txx_pipe_t ilk_txx_pipe;
cvmx_ilk_txx_idx_cal_t ilk_txx_idx_cal;
cvmx_ilk_txx_mem_cal0_t ilk_txx_mem_cal0;
cvmx_ilk_txx_mem_cal1_t ilk_txx_mem_cal1;
ilk_txx_cfg0.u64 = cvmx_read_csr (CVMX_ILK_TXX_CFG0(interface));
cvmx_dprintf ("ilk txx cfg0: 0x%16lx\n", ilk_txx_cfg0.u64);
ilk_txx_cfg1.u64 = cvmx_read_csr (CVMX_ILK_TXX_CFG1(interface));
cvmx_dprintf ("ilk txx cfg1: 0x%16lx\n", ilk_txx_cfg1.u64);
ilk_txx_pipe.u64 = cvmx_read_csr (CVMX_ILK_TXX_PIPE(interface));
cvmx_dprintf ("ilk txx pipe: 0x%16lx\n", ilk_txx_pipe.u64);
ilk_txx_idx_pmap.u64 = 0;
ilk_txx_idx_pmap.s.index = ilk_txx_pipe.s.base;
ilk_txx_idx_pmap.s.inc = 1;
cvmx_write_csr (CVMX_ILK_TXX_IDX_PMAP(interface), ilk_txx_idx_pmap.u64);
for (i = 0; i < CHAN_NUM_DBG; i++)
{
ilk_txx_mem_pmap.u64 = cvmx_read_csr (CVMX_ILK_TXX_MEM_PMAP(interface));
cvmx_dprintf ("ilk txx mem pmap pipe: %3d 0x%16lx\n",
ilk_txx_pipe.s.base + i, ilk_txx_mem_pmap.u64);
}
ilk_txx_int.u64 = cvmx_read_csr (CVMX_ILK_TXX_INT(interface));
cvmx_dprintf ("ilk txx int: 0x%16lx\n", ilk_txx_int.u64);
ilk_txx_idx_cal.u64 = 0;
ilk_txx_idx_cal.s.inc = 1;
cvmx_write_csr (CVMX_ILK_TXX_IDX_CAL(interface), ilk_txx_idx_cal.u64);
for (i = 0; i < CAL_NUM_DBG; i++)
{
ilk_txx_idx_cal.u64 = cvmx_read_csr(CVMX_ILK_TXX_IDX_CAL(interface));
cvmx_dprintf ("ilk txx idx cal: 0x%16lx\n", ilk_txx_idx_cal.u64);
ilk_txx_mem_cal0.u64 = cvmx_read_csr(CVMX_ILK_TXX_MEM_CAL0(interface));
cvmx_dprintf ("ilk txx mem cal0: 0x%16lx\n", ilk_txx_mem_cal0.u64);
ilk_txx_mem_cal1.u64 = cvmx_read_csr(CVMX_ILK_TXX_MEM_CAL1(interface));
cvmx_dprintf ("ilk txx mem cal1: 0x%16lx\n", ilk_txx_mem_cal1.u64);
}
}
#endif
/**
* show run time status
*
* @param interface The identifier of the packet interface to enable. cn68xx
* has 2 interfaces: ilk0 and ilk1.
*
* @return nothing
*/
#ifdef CVMX_ILK_RUNTIME_DBG
void cvmx_ilk_runtime_status (int interface)
{
cvmx_ilk_txx_cfg1_t ilk_txx_cfg1;
cvmx_ilk_txx_flow_ctl0_t ilk_txx_flow_ctl0;
cvmx_ilk_rxx_cfg1_t ilk_rxx_cfg1;
cvmx_ilk_rxx_int_t ilk_rxx_int;
cvmx_ilk_rxx_flow_ctl0_t ilk_rxx_flow_ctl0;
cvmx_ilk_rxx_flow_ctl1_t ilk_rxx_flow_ctl1;
cvmx_ilk_gbl_int_t ilk_gbl_int;
cvmx_dprintf ("\nilk run-time status: interface: %d\n", interface);
ilk_txx_cfg1.u64 = cvmx_read_csr (CVMX_ILK_TXX_CFG1(interface));
cvmx_dprintf ("\nilk txx cfg1: 0x%16lx\n", ilk_txx_cfg1.u64);
if (ilk_txx_cfg1.s.rx_link_fc)
cvmx_dprintf ("link flow control received\n");
if (ilk_txx_cfg1.s.tx_link_fc)
cvmx_dprintf ("link flow control sent\n");
ilk_txx_flow_ctl0.u64 = cvmx_read_csr (CVMX_ILK_TXX_FLOW_CTL0(interface));
cvmx_dprintf ("\nilk txx flow ctl0: 0x%16lx\n", ilk_txx_flow_ctl0.u64);
ilk_rxx_cfg1.u64 = cvmx_read_csr (CVMX_ILK_RXX_CFG1(interface));
cvmx_dprintf ("\nilk rxx cfg1: 0x%16lx\n", ilk_rxx_cfg1.u64);
cvmx_dprintf ("rx fifo count: %d\n", ilk_rxx_cfg1.s.rx_fifo_cnt);
ilk_rxx_int.u64 = cvmx_read_csr (CVMX_ILK_RXX_INT(interface));
cvmx_dprintf ("\nilk rxx int: 0x%16lx\n", ilk_rxx_int.u64);
if (ilk_rxx_int.s.pkt_drop_rxf)
cvmx_dprintf ("rx fifo packet drop\n");
if (ilk_rxx_int.u64)
cvmx_write_csr (CVMX_ILK_RXX_INT(interface), ilk_rxx_int.u64);
ilk_rxx_flow_ctl0.u64 = cvmx_read_csr (CVMX_ILK_RXX_FLOW_CTL0(interface));
cvmx_dprintf ("\nilk rxx flow ctl0: 0x%16lx\n", ilk_rxx_flow_ctl0.u64);
ilk_rxx_flow_ctl1.u64 = cvmx_read_csr (CVMX_ILK_RXX_FLOW_CTL1(interface));
cvmx_dprintf ("\nilk rxx flow ctl1: 0x%16lx\n", ilk_rxx_flow_ctl1.u64);
ilk_gbl_int.u64 = cvmx_read_csr (CVMX_ILK_GBL_INT);
cvmx_dprintf ("\nilk gbl int: 0x%16lx\n", ilk_gbl_int.u64);
if (ilk_gbl_int.s.rxf_push_full)
cvmx_dprintf ("rx fifo overflow\n");
if (ilk_gbl_int.u64)
cvmx_write_csr (CVMX_ILK_GBL_INT, ilk_gbl_int.u64);
}
#endif
/**
* enable interface
*
* @param interface The identifier of the packet interface to enable. cn68xx
* has 2 interfaces: ilk0 and ilk1.
*
* @return Zero on success, negative of failure.
*/
//#define CVMX_ILK_STATS_ENA 1
int cvmx_ilk_enable (int interface)
{
int res = -1;
int retry_count = 0;
cvmx_helper_link_info_t result;
cvmx_ilk_txx_cfg1_t ilk_txx_cfg1;
cvmx_ilk_rxx_cfg1_t ilk_rxx_cfg1;
#ifdef CVMX_ILK_STATS_ENA
cvmx_ilk_rxx_cfg0_t ilk_rxx_cfg0;
cvmx_ilk_txx_cfg0_t ilk_txx_cfg0;
#endif
if (!(OCTEON_IS_MODEL(OCTEON_CN68XX)))
return res;
if (interface >= CVMX_NUM_ILK_INTF)
return res;
result.u64 = 0;
#ifdef CVMX_ILK_STATS_ENA
cvmx_dprintf ("\n");
cvmx_dprintf ("<<<< ILK%d: Before enabling ilk\n", interface);
cvmx_ilk_reg_dump_rx (interface);
cvmx_ilk_reg_dump_tx (interface);
#endif
/* RX packet will be enabled only if link is up */
/* TX side */
ilk_txx_cfg1.u64 = cvmx_read_csr (CVMX_ILK_TXX_CFG1(interface));
ilk_txx_cfg1.s.pkt_ena = 1;
ilk_txx_cfg1.s.rx_link_fc_ign = 1; /* cannot use link fc workaround */
cvmx_write_csr (CVMX_ILK_TXX_CFG1(interface), ilk_txx_cfg1.u64);
cvmx_read_csr (CVMX_ILK_TXX_CFG1(interface));
#ifdef CVMX_ILK_STATS_ENA
/* RX side stats */
ilk_rxx_cfg0.u64 = cvmx_read_csr (CVMX_ILK_RXX_CFG0(interface));
ilk_rxx_cfg0.s.lnk_stats_ena = 1;
cvmx_write_csr (CVMX_ILK_RXX_CFG0(interface), ilk_rxx_cfg0.u64);
/* TX side stats */
ilk_txx_cfg0.u64 = cvmx_read_csr (CVMX_ILK_TXX_CFG0(interface));
ilk_txx_cfg0.s.lnk_stats_ena = 1;
cvmx_write_csr (CVMX_ILK_TXX_CFG0(interface), ilk_txx_cfg0.u64);
#endif
retry:
retry_count++;
if (retry_count > 10)
goto out;
/* Make sure the link is up, so that packets can be sent. */
result = __cvmx_helper_ilk_link_get(cvmx_helper_get_ipd_port(interface + CVMX_ILK_GBL_BASE, 0));
/* Small delay before another retry. */
cvmx_wait_usec(100);
ilk_rxx_cfg1.u64 = cvmx_read_csr(CVMX_ILK_RXX_CFG1(interface));
if (ilk_rxx_cfg1.s.pkt_ena == 0)
goto retry;
out:
#ifdef CVMX_ILK_STATS_ENA
cvmx_dprintf (">>>> ILK%d: After ILK is enabled\n", interface);
cvmx_ilk_reg_dump_rx (interface);
cvmx_ilk_reg_dump_tx (interface);
#endif
if (result.s.link_up)
return 0;
return -1;
}
/**
* Disable interface
*
* @param interface The identifier of the packet interface to disable. cn68xx
* has 2 interfaces: ilk0 and ilk1.
*
* @return Zero on success, negative of failure.
*/
int cvmx_ilk_disable (int interface)
{
int res = -1;
cvmx_ilk_txx_cfg1_t ilk_txx_cfg1;
cvmx_ilk_rxx_cfg1_t ilk_rxx_cfg1;
#ifdef CVMX_ILK_STATS_ENA
cvmx_ilk_rxx_cfg0_t ilk_rxx_cfg0;
cvmx_ilk_txx_cfg0_t ilk_txx_cfg0;
#endif
if (!(OCTEON_IS_MODEL(OCTEON_CN68XX)))
return res;
if (interface >= CVMX_NUM_ILK_INTF)
return res;
/* TX side */
ilk_txx_cfg1.u64 = cvmx_read_csr (CVMX_ILK_TXX_CFG1(interface));
ilk_txx_cfg1.s.pkt_ena = 0;
cvmx_write_csr (CVMX_ILK_TXX_CFG1(interface), ilk_txx_cfg1.u64);
/* RX side */
ilk_rxx_cfg1.u64 = cvmx_read_csr (CVMX_ILK_RXX_CFG1(interface));
ilk_rxx_cfg1.s.pkt_ena = 0;
cvmx_write_csr (CVMX_ILK_RXX_CFG1(interface), ilk_rxx_cfg1.u64);
#ifdef CVMX_ILK_STATS_ENA
/* RX side stats */
ilk_rxx_cfg0.u64 = cvmx_read_csr (CVMX_ILK_RXX_CFG0(interface));
ilk_rxx_cfg0.s.lnk_stats_ena = 0;
cvmx_write_csr (CVMX_ILK_RXX_CFG0(interface), ilk_rxx_cfg0.u64);
/* RX side stats */
ilk_txx_cfg0.u64 = cvmx_read_csr (CVMX_ILK_TXX_CFG0(interface));
ilk_txx_cfg0.s.lnk_stats_ena = 0;
cvmx_write_csr (CVMX_ILK_TXX_CFG0(interface), ilk_txx_cfg0.u64);
#endif
return 0;
}
/**
* Provide interface enable status
*
* @param interface The identifier of the packet interface to disable. cn68xx
* has 2 interfaces: ilk0 and ilk1.
*
* @return Zero, not enabled; One, enabled.
*/
int cvmx_ilk_get_intf_ena (int interface)
{
return cvmx_ilk_intf_cfg[interface].intf_en;
}
/**
* bit counter
*
* @param uc the byte to be counted
*
* @return number of bits set
*/
unsigned char cvmx_ilk_bit_count (unsigned char uc)
{
unsigned char count;
for (count = 0; uc > 0; uc &= uc-1)
count++;
return count;
}
/**
* Provide interface lane mask
*
* @param interface The identifier of the packet interface to disable. cn68xx
* has 2 interfaces: ilk0 and ilk1.
*
* @return lane mask
*/
unsigned char cvmx_ilk_get_intf_ln_msk (int interface)
{
return cvmx_ilk_intf_cfg[interface].lane_en_mask;
}
/**
* Provide channel info
*
* @param interface The identifier of the packet interface to disable. cn68xx
* has 2 interfaces: ilk0 and ilk1.
* @param chans A pointer to a channel array
* @param num_chan A pointer to the number of channels
*
* @return Zero on success, negative of failure.
*/
int cvmx_ilk_get_chan_info (int interface, unsigned char **chans,
unsigned char *num_chan)
{
*chans = cvmx_ilk_chan_map[interface];
*num_chan = cvmx_ilk_chans[interface];
return 0;
}
/**
* Show channel statistics
*
* @param interface The identifier of the packet interface to disable. cn68xx
* has 2 interfaces: ilk0 and ilk1.
* @param pstats A pointer to cvmx_ilk_stats_ctrl_t that specifies which
* logical channels to access
*
* @return nothing
*/
void cvmx_ilk_show_stats (int interface, cvmx_ilk_stats_ctrl_t *pstats)
{
unsigned int i;
cvmx_ilk_rxx_idx_stat0_t ilk_rxx_idx_stat0;
cvmx_ilk_rxx_idx_stat1_t ilk_rxx_idx_stat1;
cvmx_ilk_rxx_mem_stat0_t ilk_rxx_mem_stat0;
cvmx_ilk_rxx_mem_stat1_t ilk_rxx_mem_stat1;
cvmx_ilk_txx_idx_stat0_t ilk_txx_idx_stat0;
cvmx_ilk_txx_idx_stat1_t ilk_txx_idx_stat1;
cvmx_ilk_txx_mem_stat0_t ilk_txx_mem_stat0;
cvmx_ilk_txx_mem_stat1_t ilk_txx_mem_stat1;
if (!(OCTEON_IS_MODEL(OCTEON_CN68XX)))
return;
if (interface >= CVMX_NUM_ILK_INTF)
return;
if (pstats == NULL)
return;
/* discrete channels */
if (pstats->chan_list != NULL)
{
for (i = 0; i < pstats->num_chans; i++)
{
/* get the number of rx packets */
ilk_rxx_idx_stat0.u64 = 0;
ilk_rxx_idx_stat0.s.index = *pstats->chan_list;
ilk_rxx_idx_stat0.s.clr = pstats->clr_on_rd;
cvmx_write_csr (CVMX_ILK_RXX_IDX_STAT0(interface),
ilk_rxx_idx_stat0.u64);
ilk_rxx_mem_stat0.u64 = cvmx_read_csr
(CVMX_ILK_RXX_MEM_STAT0(interface));
/* get the number of rx bytes */
ilk_rxx_idx_stat1.u64 = 0;
ilk_rxx_idx_stat1.s.index = *pstats->chan_list;
ilk_rxx_idx_stat1.s.clr = pstats->clr_on_rd;
cvmx_write_csr (CVMX_ILK_RXX_IDX_STAT1(interface),
ilk_rxx_idx_stat1.u64);
ilk_rxx_mem_stat1.u64 = cvmx_read_csr
(CVMX_ILK_RXX_MEM_STAT1(interface));
cvmx_dprintf ("ILK%d Channel%d Rx: %d packets %d bytes\n", interface,
*pstats->chan_list, ilk_rxx_mem_stat0.s.rx_pkt,
(unsigned int) ilk_rxx_mem_stat1.s.rx_bytes);
/* get the number of tx packets */
ilk_txx_idx_stat0.u64 = 0;
ilk_txx_idx_stat0.s.index = *pstats->chan_list;
ilk_txx_idx_stat0.s.clr = pstats->clr_on_rd;
cvmx_write_csr (CVMX_ILK_TXX_IDX_STAT0(interface),
ilk_txx_idx_stat0.u64);
ilk_txx_mem_stat0.u64 = cvmx_read_csr
(CVMX_ILK_TXX_MEM_STAT0(interface));
/* get the number of tx bytes */
ilk_txx_idx_stat1.u64 = 0;
ilk_txx_idx_stat1.s.index = *pstats->chan_list;
ilk_txx_idx_stat1.s.clr = pstats->clr_on_rd;
cvmx_write_csr (CVMX_ILK_TXX_IDX_STAT1(interface),
ilk_txx_idx_stat1.u64);
ilk_txx_mem_stat1.u64 = cvmx_read_csr
(CVMX_ILK_TXX_MEM_STAT1(interface));
cvmx_dprintf ("ILK%d Channel%d Tx: %d packets %d bytes\n", interface,
*pstats->chan_list, ilk_txx_mem_stat0.s.tx_pkt,
(unsigned int) ilk_txx_mem_stat1.s.tx_bytes);
pstats++;
}
return;
}
/* continuous channels */
ilk_rxx_idx_stat0.u64 = 0;
ilk_rxx_idx_stat0.s.index = pstats->chan_start;
ilk_rxx_idx_stat0.s.inc = pstats->chan_step;
ilk_rxx_idx_stat0.s.clr = pstats->clr_on_rd;
cvmx_write_csr (CVMX_ILK_RXX_IDX_STAT0(interface), ilk_rxx_idx_stat0.u64);
ilk_rxx_idx_stat1.u64 = 0;
ilk_rxx_idx_stat1.s.index = pstats->chan_start;
ilk_rxx_idx_stat1.s.inc = pstats->chan_step;
ilk_rxx_idx_stat1.s.clr = pstats->clr_on_rd;
cvmx_write_csr (CVMX_ILK_RXX_IDX_STAT1(interface), ilk_rxx_idx_stat1.u64);
ilk_txx_idx_stat0.u64 = 0;
ilk_txx_idx_stat0.s.index = pstats->chan_start;
ilk_txx_idx_stat0.s.inc = pstats->chan_step;
ilk_txx_idx_stat0.s.clr = pstats->clr_on_rd;
cvmx_write_csr (CVMX_ILK_TXX_IDX_STAT0(interface), ilk_txx_idx_stat0.u64);
ilk_txx_idx_stat1.u64 = 0;
ilk_txx_idx_stat1.s.index = pstats->chan_start;
ilk_txx_idx_stat1.s.inc = pstats->chan_step;
ilk_txx_idx_stat1.s.clr = pstats->clr_on_rd;
cvmx_write_csr (CVMX_ILK_TXX_IDX_STAT1(interface), ilk_txx_idx_stat1.u64);
for (i = pstats->chan_start; i <= pstats->chan_end; i += pstats->chan_step)
{
ilk_rxx_mem_stat0.u64 = cvmx_read_csr
(CVMX_ILK_RXX_MEM_STAT0(interface));
ilk_rxx_mem_stat1.u64 = cvmx_read_csr
(CVMX_ILK_RXX_MEM_STAT1(interface));
cvmx_dprintf ("ILK%d Channel%d Rx: %d packets %d bytes\n", interface, i,
ilk_rxx_mem_stat0.s.rx_pkt,
(unsigned int) ilk_rxx_mem_stat1.s.rx_bytes);
ilk_txx_mem_stat0.u64 = cvmx_read_csr
(CVMX_ILK_TXX_MEM_STAT0(interface));
ilk_txx_mem_stat1.u64 = cvmx_read_csr
(CVMX_ILK_TXX_MEM_STAT1(interface));
cvmx_dprintf ("ILK%d Channel%d Tx: %d packets %d bytes\n", interface, i,
ilk_rxx_mem_stat0.s.rx_pkt,
(unsigned int) ilk_rxx_mem_stat1.s.rx_bytes);
}
return;
}
/**
* enable or disable loopbacks
*
* @param interface The identifier of the packet interface to disable. cn68xx
* has 2 interfaces: ilk0 and ilk1.
* @param enable Enable or disable loopback
* @param mode Internal or external loopback
*
* @return Zero on success, negative of failure.
*/
int cvmx_ilk_lpbk (int interface, cvmx_ilk_lpbk_ena_t enable,
cvmx_ilk_lpbk_mode_t mode)
{
int res = -1;
cvmx_ilk_txx_cfg0_t ilk_txx_cfg0;
cvmx_ilk_rxx_cfg0_t ilk_rxx_cfg0;
if (!(OCTEON_IS_MODEL(OCTEON_CN68XX)))
return res;
if (interface >= CVMX_NUM_ILK_INTF)
return res;
/* internal loopback. only 1 type of loopback can be on at 1 time */
if (mode == CVMX_ILK_LPBK_INT)
{
if (enable == CVMX_ILK_LPBK_ENA)
{
ilk_txx_cfg0.u64 = cvmx_read_csr (CVMX_ILK_TXX_CFG0(interface));
ilk_txx_cfg0.s.ext_lpbk = CVMX_ILK_LPBK_DISA;
ilk_txx_cfg0.s.ext_lpbk_fc = CVMX_ILK_LPBK_DISA;
cvmx_write_csr (CVMX_ILK_TXX_CFG0(interface), ilk_txx_cfg0.u64);
ilk_rxx_cfg0.u64 = cvmx_read_csr (CVMX_ILK_RXX_CFG0(interface));
ilk_rxx_cfg0.s.ext_lpbk = CVMX_ILK_LPBK_DISA;
ilk_rxx_cfg0.s.ext_lpbk_fc = CVMX_ILK_LPBK_DISA;
cvmx_write_csr (CVMX_ILK_RXX_CFG0(interface), ilk_rxx_cfg0.u64);
}
ilk_txx_cfg0.u64 = cvmx_read_csr (CVMX_ILK_TXX_CFG0(interface));
ilk_txx_cfg0.s.int_lpbk = enable;
cvmx_write_csr (CVMX_ILK_TXX_CFG0(interface), ilk_txx_cfg0.u64);
res = 0;
return res;
}
/* external loopback. only 1 type of loopback can be on at 1 time */
if (enable == CVMX_ILK_LPBK_ENA)
{
ilk_txx_cfg0.u64 = cvmx_read_csr (CVMX_ILK_TXX_CFG0(interface));
ilk_txx_cfg0.s.int_lpbk = CVMX_ILK_LPBK_DISA;
cvmx_write_csr (CVMX_ILK_TXX_CFG0(interface), ilk_txx_cfg0.u64);
}
ilk_txx_cfg0.u64 = cvmx_read_csr (CVMX_ILK_TXX_CFG0(interface));
ilk_txx_cfg0.s.ext_lpbk = enable;
ilk_txx_cfg0.s.ext_lpbk_fc = enable;
cvmx_write_csr (CVMX_ILK_TXX_CFG0(interface), ilk_txx_cfg0.u64);
ilk_rxx_cfg0.u64 = cvmx_read_csr (CVMX_ILK_RXX_CFG0(interface));
ilk_rxx_cfg0.s.ext_lpbk = enable;
ilk_rxx_cfg0.s.ext_lpbk_fc = enable;
cvmx_write_csr (CVMX_ILK_RXX_CFG0(interface), ilk_rxx_cfg0.u64);
res = 0;
return res;
}
#endif /* CVMX_ENABLE_HELPER_FUNCTIONS */
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