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49 * Functions for NPI initialization, configuration,
52 * <hr>$Revision: 70030 $<hr>
54 #ifdef CVMX_BUILD_FOR_LINUX_KERNEL
55 #include <asm/octeon/cvmx.h>
56 #include <asm/octeon/cvmx-config.h>
57 #ifdef CVMX_ENABLE_PKO_FUNCTIONS
58 #include <asm/octeon/cvmx-helper.h>
59 #include <asm/octeon/cvmx-pko.h>
60 #include <asm/octeon/cvmx-pexp-defs.h>
61 #include <asm/octeon/cvmx-sli-defs.h>
63 #include <asm/octeon/cvmx-pip-defs.h>
65 #if !defined(__FreeBSD__) || !defined(_KERNEL)
66 #include "executive-config.h"
67 #include "cvmx-config.h"
70 #ifdef CVMX_ENABLE_PKO_FUNCTIONS
71 #include "cvmx-helper.h"
76 #include "cvmx-helper.h"
80 #ifdef CVMX_ENABLE_PKO_FUNCTIONS
84 * Probe a NPI interface and determine the number of ports
85 * connected to it. The NPI interface should still be down
88 * @param interface Interface to probe
90 * @return Number of ports on the interface. Zero to disable.
92 int __cvmx_helper_npi_probe(int interface)
94 #if CVMX_PKO_QUEUES_PER_PORT_PCI > 0
95 if (OCTEON_IS_MODEL(OCTEON_CN68XX))
98 /* Technically CN30XX, CN31XX, and CN50XX contain packet engines, but
99 nobody ever uses them. Since this is the case, we disable them here */
100 else if (OCTEON_IS_MODEL(OCTEON_CN31XX) || OCTEON_IS_MODEL(OCTEON_CN50XX))
102 else if (OCTEON_IS_MODEL(OCTEON_CN30XX))
105 else if (!(OCTEON_IS_MODEL(OCTEON_CN52XX_PASS1_X) || OCTEON_IS_MODEL(OCTEON_CN56XX_PASS1_X) || OCTEON_IS_MODEL(OCTEON_CN31XX) || OCTEON_IS_MODEL(OCTEON_CN50XX) || OCTEON_IS_MODEL(OCTEON_CN30XX)))
106 return 4; /* The packet engines didn't exist before cn56xx pass 2 */
114 * Bringup and enable a NPI interface. After this call packet
115 * I/O should be fully functional. This is called with IPD
116 * enabled but PKO disabled.
118 * @param interface Interface to bring up
120 * @return Zero on success, negative on failure
122 int __cvmx_helper_npi_enable(int interface)
124 int num_ports = cvmx_helper_ports_on_interface(interface);
126 /* On CN50XX, CN52XX, and CN56XX we need to disable length checking
127 so packet < 64 bytes and jumbo frames don't get errors */
128 if (!OCTEON_IS_MODEL(OCTEON_CN3XXX) && !OCTEON_IS_MODEL(OCTEON_CN58XX))
131 for (port=0; port<num_ports; port++)
133 cvmx_pip_prt_cfgx_t port_cfg;
134 int ipd_port = (OCTEON_IS_MODEL(OCTEON_CN68XX)) ?
135 cvmx_helper_get_pknd(interface, port) :
136 cvmx_helper_get_ipd_port(interface, port);
137 port_cfg.u64 = cvmx_read_csr(CVMX_PIP_PRT_CFGX(ipd_port));
138 port_cfg.s.lenerr_en = 0;
139 port_cfg.s.maxerr_en = 0;
140 port_cfg.s.minerr_en = 0;
141 cvmx_write_csr(CVMX_PIP_PRT_CFGX(ipd_port), port_cfg.u64);
143 if (OCTEON_IS_MODEL(OCTEON_CN68XX))
146 * Set up pknd and bpid
148 cvmx_sli_portx_pkind_t config;
149 config.u64 = cvmx_read_csr(CVMX_PEXP_SLI_PORTX_PKIND(port));
150 config.s.bpkind = cvmx_helper_get_bpid(interface, port);
151 config.s.pkind = cvmx_helper_get_pknd(interface, port);
152 cvmx_write_csr(CVMX_PEXP_SLI_PORTX_PKIND(port), config.u64);
157 if (OCTEON_IS_MODEL(OCTEON_CN68XX))
162 cvmx_sli_tx_pipe_t config;
163 config.u64 = cvmx_read_csr(CVMX_PEXP_SLI_TX_PIPE);
164 config.s.base = __cvmx_pko_get_pipe (interface, 0);
165 #ifdef CVMX_HELPER_NPI_MAX_PIPES
166 config.s.nump = CVMX_HELPER_NPI_MAX_PIPES;
168 config.s.nump = num_ports;
170 cvmx_write_csr(CVMX_PEXP_SLI_TX_PIPE, config.u64);
174 /* Enables are controlled by the remote host, so nothing to do here */
178 #endif /* CVMX_ENABLE_PKO_FUNCTIONS */