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Message-Id: <201009232343.o8NNhN0Q006467@localhost.localdomain>
Date: Thu, 23 Sep 2010 16:43:23 -0700
From: kxie@...lsio.com
To: netdev@...r.kernel.org, linux-scsi@...r.kernel.org,
open-iscsi@...glegroups.com
Cc: rranjan@...lsio.com, kxie@...lsio.com,
James.Bottomley@...senPartnership.com, michaelc@...wisc.edu,
davem@...emloft.net
Subject: [PATCH 4/4] cxgb4i: connection and ddp setting update
[PATCH 4/4] cxgb4i: connection and ddp setting update
From: Karen Xie <kxie@...lsio.com>
This patch updated cxgb4i connection setting and pagepod programming.
Signed-off-by: Karen Xie <kxie@...lsio.com>
---
drivers/scsi/cxgbi/cxgb4i/cxgb4i.c | 128 +++++++++++++++++++-----------------
drivers/scsi/cxgbi/cxgb4i/cxgb4i.h | 5 +
drivers/scsi/cxgbi/libcxgbi.h | 10 ---
3 files changed, 71 insertions(+), 72 deletions(-)
diff --git a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
index 1056d97..99f2b8c 100644
--- a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
+++ b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
@@ -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);
diff --git a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.h b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.h
index 342263b..1096026 100644
--- a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.h
+++ b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.h
@@ -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;
diff --git a/drivers/scsi/cxgbi/libcxgbi.h b/drivers/scsi/cxgbi/libcxgbi.h
index 43025b7..c57d59d 100644
--- a/drivers/scsi/cxgbi/libcxgbi.h
+++ b/drivers/scsi/cxgbi/libcxgbi.h
@@ -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
--
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