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49 * Functions for NPI initialization, configuration,
52 * <hr>$Revision: 49448 $<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>
60 #include <asm/octeon/cvmx-pip-defs.h>
62 #if !defined(__FreeBSD__) || !defined(_KERNEL)
63 #include "executive-config.h"
64 #include "cvmx-config.h"
65 #ifdef CVMX_ENABLE_PKO_FUNCTIONS
68 #include "cvmx-helper.h"
72 #include "cvmx-helper.h"
76 #ifdef CVMX_ENABLE_PKO_FUNCTIONS
80 * Probe a NPI interface and determine the number of ports
81 * connected to it. The NPI interface should still be down
84 * @param interface Interface to probe
86 * @return Number of ports on the interface. Zero to disable.
88 int __cvmx_helper_npi_probe(int interface)
90 #if CVMX_PKO_QUEUES_PER_PORT_PCI > 0
91 if (OCTEON_IS_MODEL(OCTEON_CN38XX) || OCTEON_IS_MODEL(OCTEON_CN58XX))
93 else if (OCTEON_IS_MODEL(OCTEON_CN56XX) && !OCTEON_IS_MODEL(OCTEON_CN56XX_PASS1_X))
94 return 4; /* The packet engines didn't exist before pass 2 */
95 else if (OCTEON_IS_MODEL(OCTEON_CN52XX) && !OCTEON_IS_MODEL(OCTEON_CN52XX_PASS1_X))
96 return 4; /* The packet engines didn't exist before pass 2 */
97 else if (OCTEON_IS_MODEL(OCTEON_CN6XXX))
100 /* Technically CN30XX, CN31XX, and CN50XX contain packet engines, but
101 nobody ever uses them. Since this is the case, we disable them here */
102 else if (OCTEON_IS_MODEL(OCTEON_CN31XX) || OCTEON_IS_MODEL(OCTEON_CN50XX))
104 else if (OCTEON_IS_MODEL(OCTEON_CN30XX))
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 /* On CN50XX, CN52XX, and CN56XX we need to disable length checking
125 so packet < 64 bytes and jumbo frames don't get errors */
126 if (!OCTEON_IS_MODEL(OCTEON_CN3XXX) && !OCTEON_IS_MODEL(OCTEON_CN58XX))
128 int num_ports = cvmx_helper_ports_on_interface(interface);
130 for (port=0; port<num_ports; port++)
132 cvmx_pip_prt_cfgx_t port_cfg;
133 int ipd_port = cvmx_helper_get_ipd_port(interface, port);
134 port_cfg.u64 = cvmx_read_csr(CVMX_PIP_PRT_CFGX(ipd_port));
135 port_cfg.s.maxerr_en = 0;
136 port_cfg.s.minerr_en = 0;
137 cvmx_write_csr(CVMX_PIP_PRT_CFGX(ipd_port), port_cfg.u64);
141 /* Enables are controlled by the remote host, so nothing to do here */
145 #endif /* CVMX_ENABLE_PKO_FUNCTIONS */