13  * Send Context functions
32 /* global control of PIO send */
89 /* number of send context memory pools */
92 /* Send Context Size (SCS) wildcards */
96 /* Send Context Count (SCC) wildcards */
101 /* Send Context Size (SCS) constants */
109 /* default send context sizes */
122 /* send context memory pool configuration */
177  * Read the send context memory pool configuration and send context
179  * counts and sizes for the send context types.
234 				"Send context memory pool %d: both the block count and centipercent are invalid\n",  in init_sc_pools_and_sizes()
247 …"All send context memory pools must be described as either centipercent or blocks, no mixing betwe…  in init_sc_pools_and_sizes()
255 			"Send context memory pool centipercent is %d, expecting 10000\n",  in init_sc_pools_and_sizes()
264 			"Send context memory pool absolute block count %d is larger than the memory size %d\n",  in init_sc_pools_and_sizes()
297 				"%s send context invalid count wildcard %d\n",  in init_sc_pools_and_sizes()
320 				"%s send context invalid pool wildcard %d\n",  in init_sc_pools_and_sizes()
331 			"Send context fixed block count, %u, larger than total block count %u\n",  in init_sc_pools_and_sizes()
341 			"Send context fixed pool sizes, %u, larger than pool block count %u\n",  in init_sc_pools_and_sizes()
358 				"Send context memory pool %d has %u contexts, but no blocks\n",  in init_sc_pools_and_sizes()
367 					"Send context memory pool %d has %u blocks, but zero contexts\n",  in init_sc_pools_and_sizes()
394 		dd_dev_info(dd, "unused send context blocks: %d\n", extra);  in init_sc_pools_and_sizes()
420 	/* hardware context map starts with invalid send context indices */  in init_send_contexts()
425 	 * All send contexts have their credit sizes.  Allocate credits  in init_send_contexts()
472 	dd_dev_err(dd, "Unable to locate a free type %d send context\n", type);  in sc_hw_alloc()
477  * Free the send context given by its software index.
512  *   send context, per NUMA.
513  * o Each send context always looks in its relative location in a struct
515  * o Each send context in a group must have its return address CSR programmed
516  *   with the same value.  Use the address of the first send context in the
542  * Calculate PIO block threshold for this send context using the given MTU.
619  * Set the CHECK_ENABLE register for the send context 'sc'.
651  * Allocate a NUMA relative send context structure of the given type along
717 /* PIO Send Memory Address details */  in sc_alloc()
750 	/* set the send context check opcode mask and value */  in sc_alloc()
791 	/* User send contexts should not allow sending on VL15 */  in sc_alloc()
823 		  "Send context %u(%u) %s group %u credits %u credit_ctrl 0x%llx threshold %u",  in sc_alloc()
835 /* free a per-NUMA send context structure */
948 /* is the send context halted? */
957  * @sc: valid send context
1042 	dd_dev_info(dd, "restarting send context %u(%u)\n", sc->sw_index,  in sc_restart()
1095 	 * This is done while disabling the send context  in sc_restart()
1107 	 * This enable will clear the halted flag and per-send context  in sc_restart()
1115  * Go through all frozen send contexts and disable them.  The contexts are
1126 		 * Don't disable unallocated, unfrozen, or user send contexts.  in pio_freeze()
1127 		 * User send contexts will be disabled when the process  in pio_freeze()
1139  * Unfreeze PIO for kernel send contexts.  The precondition for calling this
1140  * is that all PIO send contexts have been disabled and the SPC freeze has
1162  * pio_kernel_linkup() - Re-enable send contexts after linkup event
1166  * event is different from a freeze because if the send context is re-enabled
1214  * Reset all of the send contexts to their power-on state.  Used
1237 			   "PIO send context init %s while initializing all PIO blocks\n",  in pio_reset_all()
1399  * The send context buffer "allocator".
1401  * @sc: the PIO send context we are allocating from
1563  * @sc: the send context
1632 /* translate a send credit update to a bit code of reasons */
1654  * The send context buffer "releaser".
1710  * Send context group releaser.  Argument is the send context that caused
1711  * the interrupt.  Called from the send context interrupt handler.
1752  * pio_select_send_context_vl() - select send context
1757  * This function returns a send context based on the selector and a vl.
1770 	 * Default will return VL0's send context below  in pio_select_send_context_vl()
1793  * pio_select_send_context_sc() - select send context
1798  * This function returns an send context based on the selector and an sc
1831  * Set credit return threshold for the kernel send context
1850  * @vl_scontexts: per vl send context mapping (optional)
1854  * vl_scontexts is used to specify a non-uniform vl/send context
1856  * VL an uniform distribution of send contexts per VL.
1859  * send contexts. Any extra send contexts are added from the last VL
1918 			 * assign send contexts and  in pio_map_init()
1929 					/* wrap back to first send context */  in pio_map_init()
2025 		    "Using send context %u(%u) for VL15\n",  in init_pervl_scs()