From 5c2dce26fd670607b5ff04f18efa38739805f6d6 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Fri, 1 Apr 2011 16:23:46 +0200 Subject: [SCSI] bnx2fc: introduce missing kfree Error handling code following a kmalloc should free the allocated data. The semantic match that finds the problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // @r exists@ local idexpression x; statement S; expression E; identifier f,f1,l; position p1,p2; expression *ptr != NULL; @@ x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S <... when != x when != if (...) { <+...x...+> } ( x->f1 = E | (x->f1 == NULL || ...) | f(...,x->f1,...) ) ...> ( return \(0\|<+...x...+>\|ptr\); | return@p2 ...; ) @script:python@ p1 << r.p1; p2 << r.p2; @@ print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line) // Signed-off-by: Julia Lawall Acked-by: Bhanu Prakash Gollapudi Signed-off-by: James Bottomley --- drivers/scsi/bnx2fc/bnx2fc_hwi.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/scsi/bnx2fc') diff --git a/drivers/scsi/bnx2fc/bnx2fc_hwi.c b/drivers/scsi/bnx2fc/bnx2fc_hwi.c index 1b680e288c56..f756d5f85c7a 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_hwi.c +++ b/drivers/scsi/bnx2fc/bnx2fc_hwi.c @@ -522,6 +522,7 @@ void bnx2fc_process_l2_frame_compl(struct bnx2fc_rport *tgt, fp = fc_frame_alloc(lport, payload_len); if (!fp) { printk(KERN_ERR PFX "fc_frame_alloc failure\n"); + kfree(unsol_els); return; } @@ -547,6 +548,7 @@ void bnx2fc_process_l2_frame_compl(struct bnx2fc_rport *tgt, */ printk(KERN_ERR PFX "dropping ELS 0x%x\n", op); kfree_skb(skb); + kfree(unsol_els); return; } } @@ -563,6 +565,7 @@ void bnx2fc_process_l2_frame_compl(struct bnx2fc_rport *tgt, } else { BNX2FC_HBA_DBG(lport, "fh_r_ctl = 0x%x\n", fh->fh_r_ctl); kfree_skb(skb); + kfree(unsol_els); } } -- cgit v1.2.1 From 0117ddb0c8df8e107bc8e9713c6638270638fff9 Mon Sep 17 00:00:00 2001 From: Nithin Nayak Sujir Date: Mon, 25 Apr 2011 12:30:07 -0700 Subject: [SCSI] bnx2fc: Release the reference to hba only after the interface is destroyed Prematurely decrementing the reference may lead to cmd_mgr becoming NULL with the cmds are still active. Signed-off-by: Nithin Nayak Sujir Signed-off-by: Bhanu Prakash Gollapudi Signed-off-by: James Bottomley --- drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/scsi/bnx2fc') diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index e2e647509a73..b936aee86db3 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -1352,8 +1352,6 @@ static void bnx2fc_if_destroy(struct fc_lport *lport) /* Free existing transmit skbs */ fcoe_clean_pending_queue(lport); - bnx2fc_interface_put(hba); - /* Free queued packets for the receive thread */ bnx2fc_clean_rx_queue(lport); @@ -1372,6 +1370,8 @@ static void bnx2fc_if_destroy(struct fc_lport *lport) /* Release Scsi_Host */ scsi_host_put(lport->host); + + bnx2fc_interface_put(hba); } /** -- cgit v1.2.1 From 35dd71ae82afaef3980638c528b21f018c46211a Mon Sep 17 00:00:00 2001 From: Nithin Nayak Sujir Date: Mon, 25 Apr 2011 12:30:08 -0700 Subject: [SCSI] bnx2fc: call scsi_done if session goes to not ready from ready If the session is not ready yet, we ask the SCSI-ml to retry. However, if the session is just uploaded, we should not retry, but instead call scsi_done to fail the IO. Signed-off-by: Nithin Nayak Sujir Signed-off-by: Bhanu Prakash Gollapudi Signed-off-by: James Bottomley --- drivers/scsi/bnx2fc/bnx2fc_io.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/scsi/bnx2fc') diff --git a/drivers/scsi/bnx2fc/bnx2fc_io.c b/drivers/scsi/bnx2fc/bnx2fc_io.c index 1decefbf32e3..b5b5c346d779 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_io.c +++ b/drivers/scsi/bnx2fc/bnx2fc_io.c @@ -1663,6 +1663,12 @@ int bnx2fc_queuecommand(struct Scsi_Host *host, tgt = (struct bnx2fc_rport *)&rp[1]; if (!test_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags)) { + if (test_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags)) { + sc_cmd->result = DID_NO_CONNECT << 16; + sc_cmd->scsi_done(sc_cmd); + return 0; + + } /* * Session is not offloaded yet. Let SCSI-ml retry * the command. -- cgit v1.2.1 From 068bdce41297b69e75f72a029d42e70c282273f6 Mon Sep 17 00:00:00 2001 From: Nithin Nayak Sujir Date: Mon, 25 Apr 2011 12:30:09 -0700 Subject: [SCSI] bnx2fc: Do not use HBA_DBG macro when lport is not available Use MISC_DBG instead. Signed-off-by: Nithin Nayak Sujir Signed-off-by: Bhanu Prakash Gollapudi Signed-off-by: James Bottomley --- drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/scsi/bnx2fc') diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index b936aee86db3..139955a6ba7f 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -1130,7 +1130,7 @@ static void bnx2fc_interface_release(struct kref *kref) struct net_device *phys_dev; hba = container_of(kref, struct bnx2fc_hba, kref); - BNX2FC_HBA_DBG(hba->ctlr.lp, "Interface is being released\n"); + BNX2FC_MISC_DBG("Interface is being released\n"); netdev = hba->netdev; phys_dev = hba->phys_dev; -- cgit v1.2.1 From befc9b4dda55a146f3e7e1d00abcb4a18fd75887 Mon Sep 17 00:00:00 2001 From: Nithin Nayak Sujir Date: Mon, 25 Apr 2011 12:30:10 -0700 Subject: [SCSI] bnx2fc: increase cleanup wait time FW may take more time cleaning up IOs issued to multiple targets. Signed-off-by: Nithin Nayak Sujir Signed-off-by: Bhanu Prakash Gollapudi Signed-off-by: James Bottomley --- drivers/scsi/bnx2fc/bnx2fc.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/scsi/bnx2fc') diff --git a/drivers/scsi/bnx2fc/bnx2fc.h b/drivers/scsi/bnx2fc/bnx2fc.h index b6d350ac4288..0a404bfb44fe 100644 --- a/drivers/scsi/bnx2fc/bnx2fc.h +++ b/drivers/scsi/bnx2fc/bnx2fc.h @@ -130,7 +130,7 @@ #define BNX2FC_TM_TIMEOUT 60 /* secs */ #define BNX2FC_IO_TIMEOUT 20000UL /* msecs */ -#define BNX2FC_WAIT_CNT 120 +#define BNX2FC_WAIT_CNT 1200 #define BNX2FC_FW_TIMEOUT (3 * HZ) #define PORT_MAX 2 -- cgit v1.2.1 From 134a4e27a2c4372f23b94fd3be041133cb69b52a Mon Sep 17 00:00:00 2001 From: Vasu Dev Date: Thu, 28 Apr 2011 15:55:44 -0700 Subject: [SCSI] bnx2fc: setup em for npiv port Use fc_exch_mgr_list_clone to setup em for npiv port. Also remove redundant vport and lport initializations. Signed-off-by: Vasu Dev Acked-by: Bhanu Prakash Gollapudi Signed-off-by: James Bottomley --- drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 29 +++++++++++++++-------------- 1 file changed, 15 insertions(+), 14 deletions(-) (limited to 'drivers/scsi/bnx2fc') diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index 139955a6ba7f..662365676689 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -1254,20 +1254,17 @@ setup_err: static struct fc_lport *bnx2fc_if_create(struct bnx2fc_hba *hba, struct device *parent, int npiv) { - struct fc_lport *lport = NULL; + struct fc_lport *lport, *n_port; struct fcoe_port *port; struct Scsi_Host *shost; struct fc_vport *vport = dev_to_vport(parent); int rc = 0; /* Allocate Scsi_Host structure */ - if (!npiv) { - lport = libfc_host_alloc(&bnx2fc_shost_template, - sizeof(struct fcoe_port)); - } else { - lport = libfc_vport_create(vport, - sizeof(struct fcoe_port)); - } + if (!npiv) + lport = libfc_host_alloc(&bnx2fc_shost_template, sizeof(*port)); + else + lport = libfc_vport_create(vport, sizeof(*port)); if (!lport) { printk(KERN_ERR PFX "could not allocate scsi host structure\n"); @@ -1285,7 +1282,6 @@ static struct fc_lport *bnx2fc_if_create(struct bnx2fc_hba *hba, goto lp_config_err; if (npiv) { - vport = dev_to_vport(parent); printk(KERN_ERR PFX "Setting vport names, 0x%llX 0x%llX\n", vport->node_name, vport->port_name); fc_set_wwnn(lport, vport->node_name); @@ -1314,12 +1310,17 @@ static struct fc_lport *bnx2fc_if_create(struct bnx2fc_hba *hba, fc_host_port_type(lport->host) = FC_PORTTYPE_UNKNOWN; /* Allocate exchange manager */ - if (!npiv) { + if (!npiv) rc = bnx2fc_em_config(lport); - if (rc) { - printk(KERN_ERR PFX "Error on bnx2fc_em_config\n"); - goto shost_err; - } + else { + shost = vport_to_shost(vport); + n_port = shost_priv(shost); + rc = fc_exch_mgr_list_clone(n_port, lport); + } + + if (rc) { + printk(KERN_ERR PFX "Error on bnx2fc_em_config\n"); + goto shost_err; } bnx2fc_interface_get(hba); -- cgit v1.2.1