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o) Clean up FPA pools on module unload.

Browse Source 
o) Allocate output buffer pool based on available output queues.

Submitted by:	Bhanu Prakash (with modifications)
This commit is contained in:
Juli Mallett 2011-03-16 08:51:36 +00:00
parent dea2d4206e
commit 64974004ec
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=219694
3 changed files with 60 additions and 9 deletions
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13
sys/contrib/octeon-sdk/cvmx-fpa.h
View File

@ -153,6 +153,19 @@ static inline void cvmx_fpa_enable(void)
cvmx_write_csr(CVMX_FPA_CTL_STATUS, status.u64);
}
/**
* Reset FPA to disable. Make sure buffers from all FPA pools are freed
* before disabling FPA.
*/
static inline void cvmx_fpa_disable(void)
{
cvmx_fpa_ctl_status_t status;
status.u64 = cvmx_read_csr(CVMX_FPA_CTL_STATUS);
status.s.reset = 1;
cvmx_write_csr(CVMX_FPA_CTL_STATUS, status.u64);
}
/**
* Get a new block from the FPA
*

55
sys/mips/cavium/octe/ethernet.c
View File

@ -98,6 +98,11 @@ struct ifnet *cvm_oct_device[TOTAL_NUMBER_OF_PORTS];
*/
static struct taskqueue *cvm_oct_link_taskq;
/*
* Number of buffers in output buffer pool.
*/
static int cvm_oct_num_output_buffers;
/**
* Function to update link status.
*/
@ -185,13 +190,13 @@ static void cvm_do_timer(void *arg)
}
}
/**
* Configure common hardware for all interfaces
*/
static void cvm_oct_configure_common_hw(device_t bus)
{
struct octebus_softc *sc;
int pko_queues;
int error;
int rid;
@ -199,13 +204,34 @@ static void cvm_oct_configure_common_hw(device_t bus)
/* Setup the FPA */
cvmx_fpa_enable();
cvm_oct_mem_fill_fpa(CVMX_FPA_PACKET_POOL, CVMX_FPA_PACKET_POOL_SIZE, num_packet_buffers);
cvm_oct_mem_fill_fpa(CVMX_FPA_WQE_POOL, CVMX_FPA_WQE_POOL_SIZE, num_packet_buffers);
if (CVMX_FPA_OUTPUT_BUFFER_POOL != CVMX_FPA_PACKET_POOL)
cvm_oct_mem_fill_fpa(CVMX_FPA_OUTPUT_BUFFER_POOL, CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE, 128);
cvm_oct_mem_fill_fpa(CVMX_FPA_PACKET_POOL, CVMX_FPA_PACKET_POOL_SIZE,
num_packet_buffers);
cvm_oct_mem_fill_fpa(CVMX_FPA_WQE_POOL, CVMX_FPA_WQE_POOL_SIZE,
num_packet_buffers);
if (CVMX_FPA_OUTPUT_BUFFER_POOL != CVMX_FPA_PACKET_POOL) {
/*
* If the FPA uses different pools for output buffers and
* packets, size the output buffer pool based on the number
* of PKO queues.
*/
if (OCTEON_IS_MODEL(OCTEON_CN38XX))
pko_queues = 128;
else if (OCTEON_IS_MODEL(OCTEON_CN3XXX))
pko_queues = 32;
else if (OCTEON_IS_MODEL(OCTEON_CN50XX))
pko_queues = 32;
else
pko_queues = 256;
cvm_oct_num_output_buffers = 4 * pko_queues;
cvm_oct_mem_fill_fpa(CVMX_FPA_OUTPUT_BUFFER_POOL,
CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE,
cvm_oct_num_output_buffers);
}
if (USE_RED)
cvmx_helper_setup_red(num_packet_buffers/4, num_packet_buffers/8);
cvmx_helper_setup_red(num_packet_buffers/4,
num_packet_buffers/8);
/* Enable the MII interface */
if (!octeon_is_simulation())
@ -303,11 +329,13 @@ int cvm_oct_init_module(device_t bus)
int num_ports = cvmx_helper_ports_on_interface(interface);
int port;
for (port = cvmx_helper_get_ipd_port(interface, 0); port < cvmx_helper_get_ipd_port(interface, num_ports); port++) {
for (port = 0; port < num_ports; port++) {
cvmx_pip_prt_tagx_t pip_prt_tagx;
pip_prt_tagx.u64 = cvmx_read_csr(CVMX_PIP_PRT_TAGX(port));
int pkind = cvmx_helper_get_ipd_port(interface, port);
pip_prt_tagx.u64 = cvmx_read_csr(CVMX_PIP_PRT_TAGX(pkind));
pip_prt_tagx.s.grp = pow_receive_group;
cvmx_write_csr(CVMX_PIP_PRT_TAGX(port), pip_prt_tagx.u64);
cvmx_write_csr(CVMX_PIP_PRT_TAGX(pkind), pip_prt_tagx.u64);
}
}
@ -475,4 +503,13 @@ void cvm_oct_cleanup_module(void)
cvm_oct_device[port] = NULL;
}
}
/* Free the HW pools */
cvm_oct_mem_empty_fpa(CVMX_FPA_PACKET_POOL, CVMX_FPA_PACKET_POOL_SIZE, num_packet_buffers);
cvm_oct_mem_empty_fpa(CVMX_FPA_WQE_POOL, CVMX_FPA_WQE_POOL_SIZE, num_packet_buffers);
if (CVMX_FPA_OUTPUT_BUFFER_POOL != CVMX_FPA_PACKET_POOL)
cvm_oct_mem_empty_fpa(CVMX_FPA_OUTPUT_BUFFER_POOL, CVMX_FPA_OUTPUT_BUFFER_POOL_SIZE, cvm_oct_num_output_buffers);
/* Disable FPA, all buffers are free, not done by helper shutdown. */
cvmx_fpa_disable();
}

1
sys/mips/cavium/octe/wrapper-cvmx-includes.h
View File

@ -45,5 +45,6 @@ AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR W
#include <contrib/octeon-sdk/cvmx-helper.h>
#include <contrib/octeon-sdk/cvmx-helper-board.h>
#include <contrib/octeon-sdk/cvmx-interrupt.h>
#include <contrib/octeon-sdk/octeon-model.h>
#endif