scsi/mpt3sas/mpt3sas_base.c

302  * _base_get_chain - Calculates and Returns virtual chain address
307  * @sge_chain_count: Scatter gather chain count.
309  * Return: the chain address.
333  * @sge_chain_count: Scatter gather chain count.
335  * Return: Physical chain address.
367 	// Added extra 1 to reach end of chain.
395  * _base_get_chain_buffer_dma_to_chain_buffer - Iterates chain
403  * Return: Pointer to chain buffer. Or Null on Failure.
490 	 * 4864 - 17152	SGE chain element. (32cmd * 3 chain of
527 			 * This is coping 128 byte chain
2133  * _base_get_chain_buffer_tracker - obtain chain tracker
2137  * Return: chain tracker from chain_lookup table using key as
2465 	 * entry in the main message is the chain element, and the rest
2472 	 * Put a chain element in main message frame that points to the first
2473 	 * chain buffer.
2475 	 * NOTE:  The ChainOffset field must be 0 when using a chain pointer to
2479 	/* Set main message chain element pointer */
2482 	 * For NVMe the chain element needs to be the 2nd SG entry in the main
2490 	 * contiguous memory.  Normal chain buffers can't be used
2491 	 * because each chain buffer would need to be the size of an OS
2695 	void *sg_local, *chain;
2732 	/* fill in main message segment when there is a chain following */
2747 	/* initializing the chain flags and pointers */
2752 	chain = chain_req->chain_buffer;
2768 		sg_local = chain;
2772 		/* fill in chain segments */
2792 		chain = chain_req->chain_buffer;
2836 	void *sg_local, *chain;
2874 	mpi_request->ChainOffset = (sges_in_segment - 1 /* chain element */) +
2877 	/* fill in main message segment when there is a chain following */
2891 	chain = chain_req->chain_buffer;
2905 		sg_local = chain;
2909 		/* fill in chain segments */
2922 		chain = chain_req->chain_buffer;
5992  *			for chain dma pool.
6004 	ioc->chain_dma_pool = dma_pool_create("chain pool", &ioc->pdev->dev,
6345 	/* chain segment size */
6368 	/* now do the same for a chain buffer */
6605 	    ioc_info(ioc, "chain pool depth(%d), frame_size(%d), pool_size(%d kB)\n",