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[SCSI] cxgb4i: connection and ddp setting update

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Update cxgb4i connection setting and pagepod programming.

Signed-off-by: Karen Xie <kxie@chelsio.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
kxie@chelsio.com 2010-09-23 16:43:23 -07:00 committed by James Bottomley
parent 0b3d894797
commit e27d6169c7
3 changed files with 71 additions and 72 deletions
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128
drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
View File

@ -34,8 +34,8 @@ static unsigned int dbg_level;
#define DRV_MODULE_NAME "cxgb4i"
#define DRV_MODULE_DESC "Chelsio T4 iSCSI Driver"
#define DRV_MODULE_VERSION "0.9.0"
#define DRV_MODULE_RELDATE "May 2010"
#define DRV_MODULE_VERSION "0.9.1"
#define DRV_MODULE_RELDATE "Aug. 2010"
static char version[] =
DRV_MODULE_DESC " " DRV_MODULE_NAME
@ -396,7 +396,7 @@ static inline void send_tx_flowc_wr(struct cxgbi_sock *csk)
htonl(FW_WR_LEN16(DIV_ROUND_UP(72, 16)) |
FW_WR_FLOWID(csk->tid));
flowc->mnemval[0].mnemonic = FW_FLOWC_MNEM_PFNVFN;
flowc->mnemval[0].val = htonl(0);
flowc->mnemval[0].val = htonl(csk->cdev->pfvf);
flowc->mnemval[1].mnemonic = FW_FLOWC_MNEM_CH;
flowc->mnemval[1].val = htonl(csk->tx_chan);
flowc->mnemval[2].mnemonic = FW_FLOWC_MNEM_PORT;
@ -568,6 +568,12 @@ static void do_act_establish(struct cxgbi_device *cdev, struct sk_buff *skb)
goto rel_skb;
}
if (csk->atid != atid) {
pr_err("bad conn atid %u, csk 0x%p,%u,0x%lx,tid %u, atid %u.\n",
atid, csk, csk->state, csk->flags, csk->tid, csk->atid);
goto rel_skb;
}
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
"csk 0x%p,%u,0x%lx, tid %u, atid %u, rseq %u.\n",
csk, csk->state, csk->flags, tid, atid, rcv_isn);
@ -681,9 +687,10 @@ static void do_act_open_rpl(struct cxgbi_device *cdev, struct sk_buff *skb)
goto rel_skb;
}
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
"csk 0x%p,%u,0x%lx, status %u, atid %u, tid %u.\n",
csk, csk->state, csk->flags, status, atid, tid);
pr_info("%pI4:%u-%pI4:%u, atid %u,%u, status %u, csk 0x%p,%u,0x%lx.\n",
&csk->saddr.sin_addr.s_addr, ntohs(csk->saddr.sin_port),
&csk->daddr.sin_addr.s_addr, ntohs(csk->daddr.sin_port),
atid, tid, status, csk, csk->state, csk->flags);
if (status && status != CPL_ERR_TCAM_FULL &&
status != CPL_ERR_CONN_EXIST &&
@ -846,7 +853,6 @@ static void do_rx_iscsi_hdr(struct cxgbi_device *cdev, struct sk_buff *skb)
unsigned int tid = GET_TID(cpl);
struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(cdev);
struct tid_info *t = lldi->tids;
struct sk_buff *lskb;
csk = lookup_tid(t, tid);
if (unlikely(!csk)) {
@ -872,6 +878,8 @@ static void do_rx_iscsi_hdr(struct cxgbi_device *cdev, struct sk_buff *skb)
}
cxgbi_skcb_tcp_seq(skb) = ntohl(cpl->seq);
cxgbi_skcb_flags(skb) = 0;
skb_reset_transport_header(skb);
__skb_pull(skb, sizeof(*cpl));
__pskb_trim(skb, ntohs(cpl->len));
@ -884,17 +892,16 @@ static void do_rx_iscsi_hdr(struct cxgbi_device *cdev, struct sk_buff *skb)
"csk 0x%p,%u,0x%lx, tid %u, skb 0x%p header.\n",
csk, csk->state, csk->flags, csk->tid, skb);
csk->skb_ulp_lhdr = skb;
lskb = csk->skb_ulp_lhdr;
cxgbi_skcb_set_flag(lskb, SKCBF_RX_HDR);
cxgbi_skcb_set_flag(skb, SKCBF_RX_HDR);
if (cxgbi_skcb_tcp_seq(lskb) != csk->rcv_nxt) {
if (cxgbi_skcb_tcp_seq(skb) != csk->rcv_nxt) {
pr_info("tid %u, CPL_ISCSI_HDR, bad seq, 0x%x/0x%x.\n",
csk->tid, cxgbi_skcb_tcp_seq(lskb),
csk->tid, cxgbi_skcb_tcp_seq(skb),
csk->rcv_nxt);
goto abort_conn;
}
bhs = lskb->data;
bhs = skb->data;
hlen = ntohs(cpl->len);
dlen = ntohl(*(unsigned int *)(bhs + 4)) & 0xFFFFFF;
@ -918,9 +925,9 @@ static void do_rx_iscsi_hdr(struct cxgbi_device *cdev, struct sk_buff *skb)
ntohl(*((unsigned int *)(bhs + 24))));
} else {
lskb = csk->skb_ulp_lhdr;
cxgbi_skcb_set_flag(lskb, SKCBF_RX_DATA);
struct sk_buff *lskb = csk->skb_ulp_lhdr;
cxgbi_skcb_set_flag(lskb, SKCBF_RX_DATA);
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_PDU_RX,
"csk 0x%p,%u,0x%lx, skb 0x%p data, 0x%p.\n",
csk, csk->state, csk->flags, skb, lskb);
@ -979,7 +986,6 @@ static void do_rx_data_ddp(struct cxgbi_device *cdev,
lskb = csk->skb_ulp_lhdr;
csk->skb_ulp_lhdr = NULL;
cxgbi_skcb_set_flag(lskb, SKCBF_RX_STATUS);
cxgbi_skcb_rx_ddigest(lskb) = ntohl(rpl->ulp_crc);
if (ntohs(rpl->len) != cxgbi_skcb_rx_pdulen(lskb))
@ -987,15 +993,13 @@ static void do_rx_data_ddp(struct cxgbi_device *cdev,
csk->tid, ntohs(rpl->len), cxgbi_skcb_rx_pdulen(lskb));
if (status & (1 << CPL_RX_DDP_STATUS_HCRC_SHIFT)) {
log_debug(1 << CXGBI_DBG_PDU_RX,
"csk 0x%p, lhdr 0x%p, status 0x%x, hcrc bad.\n",
csk, lskb, status);
pr_info("csk 0x%p, lhdr 0x%p, status 0x%x, hcrc bad 0x%lx.\n",
csk, lskb, status, cxgbi_skcb_flags(lskb));
cxgbi_skcb_set_flag(lskb, SKCBF_RX_HCRC_ERR);
}
if (status & (1 << CPL_RX_DDP_STATUS_DCRC_SHIFT)) {
log_debug(1 << CXGBI_DBG_PDU_RX,
"csk 0x%p, lhdr 0x%p, status 0x%x, dcrc bad.\n",
csk, lskb, status);
pr_info("csk 0x%p, lhdr 0x%p, status 0x%x, dcrc bad 0x%lx.\n",
csk, lskb, status, cxgbi_skcb_flags(lskb));
cxgbi_skcb_set_flag(lskb, SKCBF_RX_DCRC_ERR);
}
if (status & (1 << CPL_RX_DDP_STATUS_PAD_SHIFT)) {
@ -1015,6 +1019,7 @@ static void do_rx_data_ddp(struct cxgbi_device *cdev,
"csk 0x%p, lskb 0x%p, f 0x%lx.\n",
csk, lskb, cxgbi_skcb_flags(lskb));
cxgbi_skcb_set_flag(lskb, SKCBF_RX_STATUS);
cxgbi_conn_pdu_ready(csk);
spin_unlock_bh(&csk->lock);
goto rel_skb;
@ -1234,41 +1239,41 @@ int cxgb4i_ofld_init(struct cxgbi_device *cdev)
/*
* functions to program the pagepod in h/w
*/
#define ULPMEM_IDATA_MAX_NPPODS 4 /* 256/PPOD_SIZE */
static inline void ulp_mem_io_set_hdr(struct ulp_mem_io *req,
unsigned int dlen, unsigned int pm_addr)
unsigned int wr_len, unsigned int dlen,
unsigned int pm_addr)
{
struct ulptx_sgl *sgl;
unsigned int wr_len = roundup(sizeof(struct ulp_mem_io) +
sizeof(struct ulptx_sgl), 16);
struct ulptx_idata *idata = (struct ulptx_idata *)(req + 1);
INIT_ULPTX_WR(req, wr_len, 0, 0);
req->cmd = htonl(ULPTX_CMD(ULP_TX_MEM_WRITE));
req->cmd = htonl(ULPTX_CMD(ULP_TX_MEM_WRITE) | (1 << 23));
req->dlen = htonl(ULP_MEMIO_DATA_LEN(dlen >> 5));
req->lock_addr = htonl(ULP_MEMIO_ADDR(pm_addr >> 5));
req->len16 = htonl(DIV_ROUND_UP(wr_len - sizeof(req->wr), 16));
sgl = (struct ulptx_sgl *)(req + 1);
sgl->cmd_nsge = htonl(ULPTX_CMD(ULP_TX_SC_DSGL) | ULPTX_NSGE(1));
sgl->len0 = htonl(dlen);
idata->cmd_more = htonl(ULPTX_CMD(ULP_TX_SC_IMM));
idata->len = htonl(dlen);
}
static int ddp_ppod_write_sgl(struct cxgbi_device *cdev, unsigned int port_id,
static int ddp_ppod_write_idata(struct cxgbi_device *cdev, unsigned int port_id,
struct cxgbi_pagepod_hdr *hdr, unsigned int idx,
unsigned int npods,
struct cxgbi_gather_list *gl,
unsigned int gl_pidx)
{
struct cxgbi_ddp_info *ddp = cdev->ddp;
unsigned int dlen, pm_addr;
struct sk_buff *skb;
struct ulp_mem_io *req;
struct ulptx_sgl *sgl;
struct ulptx_idata *idata;
struct cxgbi_pagepod *ppod;
unsigned int pm_addr = idx * PPOD_SIZE + ddp->llimit;
unsigned int dlen = PPOD_SIZE * npods;
unsigned int wr_len = roundup(sizeof(struct ulp_mem_io) +
sizeof(struct ulptx_idata) + dlen, 16);
unsigned int i;
dlen = PPOD_SIZE * npods;
pm_addr = idx * PPOD_SIZE + ddp->llimit;
skb = alloc_wr(sizeof(*req) + sizeof(*sgl), dlen, GFP_ATOMIC);
skb = alloc_wr(wr_len, 0, GFP_ATOMIC);
if (!skb) {
pr_err("cdev 0x%p, idx %u, npods %u, OOM.\n",
cdev, idx, npods);
@ -1277,10 +1282,9 @@ static int ddp_ppod_write_sgl(struct cxgbi_device *cdev, unsigned int port_id,
req = (struct ulp_mem_io *)skb->head;
set_queue(skb, CPL_PRIORITY_CONTROL, NULL);
ulp_mem_io_set_hdr(req, dlen, pm_addr);
sgl = (struct ulptx_sgl *)(req + 1);
ppod = (struct cxgbi_pagepod *)(sgl + 1);
sgl->addr0 = cpu_to_be64(virt_to_phys(ppod));
ulp_mem_io_set_hdr(req, wr_len, dlen, pm_addr);
idata = (struct ulptx_idata *)(req + 1);
ppod = (struct cxgbi_pagepod *)(idata + 1);
for (i = 0; i < npods; i++, ppod++, gl_pidx += PPOD_PAGES_MAX) {
if (!hdr && !gl)
@ -1302,9 +1306,9 @@ static int ddp_set_map(struct cxgbi_sock *csk, struct cxgbi_pagepod_hdr *hdr,
for (i = 0; i < npods; i += cnt, idx += cnt) {
cnt = npods - i;
if (cnt > ULPMEM_DSGL_MAX_NPPODS)
cnt = ULPMEM_DSGL_MAX_NPPODS;
err = ddp_ppod_write_sgl(csk->cdev, csk->port_id, hdr,
if (cnt > ULPMEM_IDATA_MAX_NPPODS)
cnt = ULPMEM_IDATA_MAX_NPPODS;
err = ddp_ppod_write_idata(csk->cdev, csk->port_id, hdr,
idx, cnt, gl, 4 * i);
if (err < 0)
break;
@ -1320,9 +1324,9 @@ static void ddp_clear_map(struct cxgbi_hba *chba, unsigned int tag,
for (i = 0; i < npods; i += cnt, idx += cnt) {
cnt = npods - i;
if (cnt > ULPMEM_DSGL_MAX_NPPODS)
cnt = ULPMEM_DSGL_MAX_NPPODS;
err = ddp_ppod_write_sgl(chba->cdev, chba->port_id, NULL,
if (cnt > ULPMEM_IDATA_MAX_NPPODS)
cnt = ULPMEM_IDATA_MAX_NPPODS;
err = ddp_ppod_write_idata(chba->cdev, chba->port_id, NULL,
idx, cnt, NULL, 0);
if (err < 0)
break;
@ -1334,26 +1338,22 @@ static int ddp_setup_conn_pgidx(struct cxgbi_sock *csk, unsigned int tid,
{
struct sk_buff *skb;
struct cpl_set_tcb_field *req;
u64 val = pg_idx < DDP_PGIDX_MAX ? pg_idx : 0;
if (!pg_idx)
if (!pg_idx || pg_idx >= DDP_PGIDX_MAX)
return 0;
skb = alloc_wr(sizeof(*req), 0, GFP_KERNEL);
if (!skb)
return -ENOMEM;
/* set up ulp submode and page size */
val = (val & 0x03) << 2;
val |= TCB_ULP_TYPE(ULP2_MODE_ISCSI);
/* set up ulp page size */
req = (struct cpl_set_tcb_field *)skb->head;
INIT_TP_WR(req, csk->tid);
OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SET_TCB_FIELD, csk->tid));
req->reply_ctrl = htons(NO_REPLY(reply) | QUEUENO(csk->rss_qid));
req->word_cookie = htons(TCB_WORD(W_TCB_ULP_RAW));
req->mask = cpu_to_be64(TCB_ULP_TYPE(TCB_ULP_TYPE_MASK));
req->val = cpu_to_be64(val);
req->word_cookie = htons(0);
req->mask = cpu_to_be64(0x3 << 8);
req->val = cpu_to_be64(pg_idx << 8);
set_wr_txq(skb, CPL_PRIORITY_CONTROL, csk->port_id);
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
@ -1368,10 +1368,9 @@ static int ddp_setup_conn_digest(struct cxgbi_sock *csk, unsigned int tid,
{
struct sk_buff *skb;
struct cpl_set_tcb_field *req;
u64 val = (hcrc ? ULP_CRC_HEADER : 0) | (dcrc ? ULP_CRC_DATA : 0);
val = TCB_ULP_RAW(val);
val |= TCB_ULP_TYPE(ULP2_MODE_ISCSI);
if (!hcrc && !dcrc)
return 0;
skb = alloc_wr(sizeof(*req), 0, GFP_KERNEL);
if (!skb)
@ -1379,14 +1378,15 @@ static int ddp_setup_conn_digest(struct cxgbi_sock *csk, unsigned int tid,
csk->hcrc_len = (hcrc ? 4 : 0);
csk->dcrc_len = (dcrc ? 4 : 0);
/* set up ulp submode and page size */
/* set up ulp submode */
req = (struct cpl_set_tcb_field *)skb->head;
INIT_TP_WR(req, tid);
OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SET_TCB_FIELD, tid));
req->reply_ctrl = htons(NO_REPLY(reply) | QUEUENO(csk->rss_qid));
req->word_cookie = htons(TCB_WORD(W_TCB_ULP_RAW));
req->mask = cpu_to_be64(TCB_ULP_RAW(TCB_ULP_RAW_MASK));
req->val = cpu_to_be64(val);
req->word_cookie = htons(0);
req->mask = cpu_to_be64(0x3 << 4);
req->val = cpu_to_be64(((hcrc ? ULP_CRC_HEADER : 0) |
(dcrc ? ULP_CRC_DATA : 0)) << 4);
set_wr_txq(skb, CPL_PRIORITY_CONTROL, csk->port_id);
log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
@ -1477,6 +1477,10 @@ static void *t4_uld_add(const struct cxgb4_lld_info *lldi)
cdev->skb_rx_extra = sizeof(struct cpl_iscsi_hdr);
cdev->itp = &cxgb4i_iscsi_transport;
cdev->pfvf = FW_VIID_PFN_GET(cxgb4_port_viid(lldi->ports[0])) << 8;
pr_info("cdev 0x%p,%s, pfvf %u.\n",
cdev, lldi->ports[0]->name, cdev->pfvf);
rc = cxgb4i_ddp_init(cdev);
if (rc) {
pr_info("t4 0x%p ddp init failed.\n", cdev);

5
drivers/scsi/cxgbi/cxgb4i/cxgb4i.h
View File

@ -23,6 +23,11 @@
#define CXGB4I_TX_HEADER_LEN \
(sizeof(struct fw_ofld_tx_data_wr) + sizeof(struct sge_opaque_hdr))
struct ulptx_idata {
__be32 cmd_more;
__be32 len;
};
struct cpl_rx_data_ddp {
union opcode_tid ot;
__be16 urg;

10
drivers/scsi/cxgbi/libcxgbi.h
View File

@ -162,16 +162,6 @@ struct cxgbi_ddp_info {
#define PPOD_VALID(x) ((x) << PPOD_VALID_SHIFT)
#define PPOD_VALID_FLAG PPOD_VALID(1U)
#define W_TCB_ULP_TYPE 0
#define TCB_ULP_TYPE_SHIFT 0
#define TCB_ULP_TYPE_MASK 0xfULL
#define TCB_ULP_TYPE(x) ((x) << TCB_ULP_TYPE_SHIFT)
#define W_TCB_ULP_RAW 0
#define TCB_ULP_RAW_SHIFT 4
#define TCB_ULP_RAW_MASK 0xffULL
#define TCB_ULP_RAW(x) ((x) << TCB_ULP_RAW_SHIFT)
/*
* sge_opaque_hdr -
* Opaque version of structure the SGE stores at skb->head of TX_DATA packets