Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-11 06:31:49 +00:00
Code Issues Packages Projects Releases Wiki Activity

be2iscsi: Fix TCP parameters while connection offloading.

Browse Source 
SKH-R adapter, TCP Window Size/Scale parameters are passed
 in TCP Connection Offload Mbx Command.

Signed-off-by: Minh Tran <minhduc.tran@emulex.com>
Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Jayamohan Kallickal 2014-05-05 21:41:27 -04:00 committed by Christoph Hellwig
parent 73af08e11c
commit b3c202dc57
3 changed files with 40 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/scsi/be2iscsi/be_cmds.h
View File

@ -71,6 +71,7 @@ struct be_mcc_wrb {
#define BEISCSI_FW_MBX_TIMEOUT 100
/* MBOX Command VER */
#define MBX_CMD_VER1 0x01
#define MBX_CMD_VER2 0x02
struct be_mcc_compl {
@ -1013,6 +1014,26 @@ struct tcp_connect_and_offload_in {
u8 rsvd0[3];
} __packed;
struct tcp_connect_and_offload_in_v1 {
struct be_cmd_req_hdr hdr;
struct ip_addr_format ip_address;
u16 tcp_port;
u16 cid;
u16 cq_id;
u16 defq_id;
struct phys_addr dataout_template_pa;
u16 hdr_ring_id;
u16 data_ring_id;
u8 do_offload;
u8 ifd_state;
u8 rsvd0[2];
u16 tcp_window_size;
u8 tcp_window_scale_count;
u8 rsvd1;
u32 tcp_mss:24;
u8 rsvd2;
} __packed;
struct tcp_connect_and_offload_out {
struct be_cmd_resp_hdr hdr;
u32 connection_handle;

12
drivers/scsi/be2iscsi/be_iscsi.c
View File

@ -1106,7 +1106,7 @@ static int beiscsi_open_conn(struct iscsi_endpoint *ep,
struct beiscsi_hba *phba = beiscsi_ep->phba;
struct tcp_connect_and_offload_out *ptcpcnct_out;
struct be_dma_mem nonemb_cmd;
unsigned int tag;
unsigned int tag, req_memsize;
int ret = -ENOMEM;
beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
@ -1127,8 +1127,14 @@ static int beiscsi_open_conn(struct iscsi_endpoint *ep,
(beiscsi_ep->ep_cid)] = ep;
beiscsi_ep->cid_vld = 0;
if (is_chip_be2_be3r(phba))
req_memsize = sizeof(struct tcp_connect_and_offload_in);
else
req_memsize = sizeof(struct tcp_connect_and_offload_in_v1);
nonemb_cmd.va = pci_alloc_consistent(phba->ctrl.pdev,
sizeof(struct tcp_connect_and_offload_in),
req_memsize,
&nonemb_cmd.dma);
if (nonemb_cmd.va == NULL) {
@ -1139,7 +1145,7 @@ static int beiscsi_open_conn(struct iscsi_endpoint *ep,
beiscsi_free_ep(beiscsi_ep);
return -ENOMEM;
}
nonemb_cmd.size = sizeof(struct tcp_connect_and_offload_in);
nonemb_cmd.size = req_memsize;
memset(nonemb_cmd.va, 0, nonemb_cmd.size);
tag = mgmt_open_connection(phba, dst_addr, beiscsi_ep, &nonemb_cmd);
if (tag <= 0) {

13
drivers/scsi/be2iscsi/be_mgmt.c
View File

@ -712,7 +712,7 @@ int mgmt_open_connection(struct beiscsi_hba *phba,
struct sockaddr_in6 *daddr_in6 = (struct sockaddr_in6 *)dst_addr;
struct be_ctrl_info *ctrl = &phba->ctrl;
struct be_mcc_wrb *wrb;
struct tcp_connect_and_offload_in *req;
struct tcp_connect_and_offload_in_v1 *req;
unsigned short def_hdr_id;
unsigned short def_data_id;
struct phys_addr template_address = { 0, 0 };
@ -745,10 +745,10 @@ int mgmt_open_connection(struct beiscsi_hba *phba,
memset(req, 0, sizeof(*req));
wrb->tag0 |= tag;
be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
be_wrb_hdr_prepare(wrb, nonemb_cmd->size, false, 1);
be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
OPCODE_COMMON_ISCSI_TCP_CONNECT_AND_OFFLOAD,
sizeof(*req));
nonemb_cmd->size);
if (dst_addr->sa_family == PF_INET) {
__be32 s_addr = daddr_in->sin_addr.s_addr;
req->ip_address.ip_type = BE2_IPV4;
@ -794,6 +794,13 @@ int mgmt_open_connection(struct beiscsi_hba *phba,
sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
sge->len = cpu_to_le32(nonemb_cmd->size);
if (!is_chip_be2_be3r(phba)) {
req->hdr.version = MBX_CMD_VER1;
req->tcp_window_size = 0;
req->tcp_window_scale_count = 2;
}
be_mcc_notify(phba);
spin_unlock(&ctrl->mbox_lock);
return tag;