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path: root/drivers/scsi/aacraid/rkt.c
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-rw-r--r--drivers/scsi/aacraid/rkt.c64
1 files changed, 36 insertions, 28 deletions
diff --git a/drivers/scsi/aacraid/rkt.c b/drivers/scsi/aacraid/rkt.c
index 643f23b5ded8..d953c3fe998a 100644
--- a/drivers/scsi/aacraid/rkt.c
+++ b/drivers/scsi/aacraid/rkt.c
@@ -34,6 +34,40 @@
34 34
35#include "aacraid.h" 35#include "aacraid.h"
36 36
37#define AAC_NUM_IO_FIB_RKT (246 - AAC_NUM_MGT_FIB)
38
39/**
40 * aac_rkt_select_comm - Select communications method
41 * @dev: Adapter
42 * @comm: communications method
43 */
44
45static int aac_rkt_select_comm(struct aac_dev *dev, int comm)
46{
47 int retval;
48 extern int aac_rx_select_comm(struct aac_dev *dev, int comm);
49 retval = aac_rx_select_comm(dev, comm);
50 if (comm == AAC_COMM_MESSAGE) {
51 /*
52 * FIB Setup has already been done, but we can minimize the
53 * damage by at least ensuring the OS never issues more
54 * commands than we can handle. The Rocket adapters currently
55 * can only handle 246 commands and 8 AIFs at the same time,
56 * and in fact do notify us accordingly if we negotiate the
57 * FIB size. The problem that causes us to add this check is
58 * to ensure that we do not overdo it with the adapter when a
59 * hard coded FIB override is being utilized. This special
60 * case warrants this half baked, but convenient, check here.
61 */
62 if (dev->scsi_host_ptr->can_queue > AAC_NUM_IO_FIB_RKT) {
63 dev->init->MaxIoCommands =
64 cpu_to_le32(AAC_NUM_IO_FIB_RKT + AAC_NUM_MGT_FIB);
65 dev->scsi_host_ptr->can_queue = AAC_NUM_IO_FIB_RKT;
66 }
67 }
68 return retval;
69}
70
37/** 71/**
38 * aac_rkt_ioremap 72 * aac_rkt_ioremap
39 * @size: mapping resize request 73 * @size: mapping resize request
@@ -63,39 +97,13 @@ static int aac_rkt_ioremap(struct aac_dev * dev, u32 size)
63 97
64int aac_rkt_init(struct aac_dev *dev) 98int aac_rkt_init(struct aac_dev *dev)
65{ 99{
66 int retval;
67 extern int _aac_rx_init(struct aac_dev *dev); 100 extern int _aac_rx_init(struct aac_dev *dev);
68 extern void aac_rx_start_adapter(struct aac_dev *dev);
69 101
70 /* 102 /*
71 * Fill in the function dispatch table. 103 * Fill in the function dispatch table.
72 */ 104 */
73 dev->a_ops.adapter_ioremap = aac_rkt_ioremap; 105 dev->a_ops.adapter_ioremap = aac_rkt_ioremap;
106 dev->a_ops.adapter_comm = aac_rkt_select_comm;
74 107
75 retval = _aac_rx_init(dev); 108 return _aac_rx_init(dev);
76 if (retval)
77 return retval;
78 if (dev->new_comm_interface) {
79 /*
80 * FIB Setup has already been done, but we can minimize the
81 * damage by at least ensuring the OS never issues more
82 * commands than we can handle. The Rocket adapters currently
83 * can only handle 246 commands and 8 AIFs at the same time,
84 * and in fact do notify us accordingly if we negotiate the
85 * FIB size. The problem that causes us to add this check is
86 * to ensure that we do not overdo it with the adapter when a
87 * hard coded FIB override is being utilized. This special
88 * case warrants this half baked, but convenient, check here.
89 */
90 if (dev->scsi_host_ptr->can_queue > (246 - AAC_NUM_MGT_FIB)) {
91 dev->init->MaxIoCommands = cpu_to_le32(246);
92 dev->scsi_host_ptr->can_queue = 246 - AAC_NUM_MGT_FIB;
93 }
94 }
95 /*
96 * Tell the adapter that all is configured, and it can start
97 * accepting requests
98 */
99 aac_rx_start_adapter(dev);
100 return 0;
101} 109}